VOLUME 6 SURVEILLANCE
CHAPTER 11 OTHER SURVEILLANCE
Section 24 Safety Assurance System: Evaluate/Inspect Parts
Electrical Wiring Interconnection Systems Maintenance Program
6-2723 REPORTING SYSTEM(S).
A. Program Tracking and Reporting Subsystem (PTRS) Activity Codes.
The Federal Aviation Administration (FAA) has developed the following PTRS activity codes for Title 14 of the Code of Federal Regulations (14 CFR) part
order to track and document the initial incorporation, revisions, and ongoing surveillance activities of the FAA Oversight Office-approved type
certificate (TC) and Supplemental Type Certificate (STC) electrical wiring interconnection
systems (EWIS) instructions for continued airworthiness (ICA) into an operator’s maintenance program: 3316, 4319, 4320, 5316, 6319, and 6320.
NOTE: In this section, the terms “operator,” “it,” and “its” refer to
any certificate holder, air carrier, or other entity operating under 14 CFR part
121 and §
B. Safety Assurance System (SAS) for Part
Carriers. Use SAS automation and the associated Data Collection
Tools (DCT). This section is related to SAS Element 4.6.2 (AW), Maintenance Special Emphasis Programs.
6-2724 COORDINATION REQUIREMENTS. This task requires coordination
between the principal inspectors (PI) and aviation safety inspectors (ASI). It may also
include coordination with the Aircraft Certification Office (ACO) for initial/revision
approval of EWIS ICAs. Additional coordination may be necessary between the PI of 14 CFR part
repair stations (CRS) and the certificate management office (CMO) of an operator with which the operator has a maintenance agreement.
6-2725 OBJECTIVE. This section provides specific guidance to principal
maintenance inspectors (PMI)/principal avionics inspectors (PAI) for determining
an operator’s compliance with the Enhanced Airworthiness Program for Airplane
Systems (EAPAS)/fuel tank safety (FTS) operation rules. (The PMI and PAI are referred to as the PI in this section.)
NOTE: This section only addresses the EAPAS requirements in the EAPAS/FTS rule.
Volume 6, Chapter 11, Section 23, and §
the FTS requirements. Advisory Circular
(AC) 120‑97, Incorporation
of Fuel Tank System Instructions for Continued Airworthiness into Operator Maintenance and/or Inspection Programs, is available on the FAA website
6-2726 GENERAL. On November 8, 2007, the FAA published the EAPAS/FTS
final rule. The purpose of the rule is to help ensure the continued safety of
transport category airplanes by improving the design, installation, and maintenance of an EWIS. The rule includes a new part
AA and part
B. The rule also includes §§
129.111 to implement an EWIS, and §§
implement FTS actions developed in accordance with Special Federal Aviation Regulations (SFAR) 88. The rule includes new 14 CFR part
26.11 and part
NOTE: For the purposes of this section, the FAA Oversight Office is defined in §
the ACO or the office of the Transport Airplane Directorate with
oversight responsibility for the relevant TC, STC, or manufacturer as determined by the Administrator.
“…electrical wiring interconnection system (EWIS) means any wire, wiring device, or combination of these, including termination devices,
installed in any area of the airplane for the purpose of transmitting electrical
energy, including data and signals, between two or more intended termination points.”
A. Affected Aircraft. The EAPAS/FTS rule applies to operators
of transport category turbine-powered airplanes with a TC issued after January
1, 1958 that, as a result of original type certification or later increase in capacity,
have a maximum TC’d passenger capacity of 30 or more or a maximum
payload capacity of 7,500 pounds or more. The rule also applies to any transport category airplane that has §
25.1729 in its certification basis.
B. “Original Type Certification or Later Increase in Capacity.”
This phrase addresses two situations. In the past, some design approval holders
(DAH) which include TC holders, STC holders, and amended type certificate holders
(TCH) and operators, avoided applying requirements mandated only for airplanes
over a specific capacity by receiving a design change approval for a slightly
lower capacity. By referencing the capacity resulting from original certification,
the rule removes this means of avoiding compliance. Also, the FAA could have
originally certificated an airplane design with a capacity slightly lower than
the minimum specified in the rule, but through later design changes, the capacity
could be increased above this minimum. The reference to later increase in capacity
in the rule ensures that, if this occurs, the design would have to meet the requirements of the rule.
6-2728 EWIS ICA REQUIRED BY §
A. Inspection or Restoration Tasks. The EWIS ICAs required by §
inspection and restoration tasks, procedures, and instructions
to keep an EWIS Airworthy throughout its operational life and are described in the subparagraphs below. The EWIS ICAs required by §
26.11 are developed in accordance with part
25 appendix H, §
H25.5(a)(1) and (b), and include:
1) Inspections can be a zonal General Visual Inspection (GVI),
standalone GVI, Detailed Inspection (DET), or a combination of these as required for a design change.
2) Restoration tasks are usually cleaning tasks, such as replacing
an air filter in order to reduce the likelihood of contamination build-up within a zone.
NOTE: The TCH or applicant develops the inspection and restoration tasks
using the Airlines for America (A4A) Maintenance Steering Group - 3rd Task Force
(MSG-3) and later revisions and the enhanced zonal analysis procedure (EZAP) described in AC
of Transport Category Airplane Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness Using and Enhanced Zonal Analysis
Procedure. An STC holder or applicant does not utilize the Maintenance Review Board (MRB) process, but uses the guidance contained
in AC 25-27 to
develop any new or revised EWIS ICAs as required for a design change.
3) In addition to the inspection and restoration tasks, EWIS ICAs can also include:
a) A revised standard wiring practices/electrical standards manual that is presented in a standardized format using the
guidance in AC
25-27 (refer to §
b) Wire separation requirements (refer to §
c) Information explaining the EWIS identification method and requirements for identifying any changes to the EWIS (refer to §
d) Electrical load data (i.e., electrical load analysis) and instructions for updating that data (refer to §
e) The source document requirements only apply to EWIS inspection and restoration tasks.
f) The DAH or applicant develops the EWIS ICA using the MSG-3 and AC
STC holder or applicant does not utilize the MSG-3, but can use guidance contained in AC
develop any new or revise EWIS ICAs as required for a design change.
B. Multiple Components. EWIS ICAs can be, and almost always are,
comprised of several different components. All of these components together
define a particular EWIS ICA. The components of EWIS ICAs are located in multiple DAH-produced documents.
1) For example, EWIS ICA components can be located in one or more of the following:
• Document required by §
referred to as “source document;”
• Maintenance Review Board Report (MRBR);
• Maintenance Planning Document (MPD);
• Maintenance Implementation Document (MID);
• Aircraft Maintenance Manual (AMM);
• Standard wiring practice manual (SWPM);
• Electrical Standard Practices Manual (ESPM) (a term used
by some DAHs); or
• Standalone ICA document produced by an STC applicant.
2) EWIS ICA components are items such as:
a) Type of task (restoration/cleaning, standalone GVI, DET, or standard zonal as identified in the MRBR or MID).
b) Task interval (e.g., every 16,000 flight cycles or 3,000 days).
c) Airplane zone identification for airplanes with a zonal program (e.g.,
Zone 201). Task description as described in the MRBR and MID (e.g., “Inspect (General Visual) all exposed EWIS in the wheel well”).
NOTE: The gear is extended with the handle down and the gear locked in the down position and doors in the open position.
d) Airplane applicability as identified in the source document. Some models
within the same family of airplanes may have differing maintenance requirements
based on available options (e.g., freighter versus passenger version and engine
types). Task procedure(s) are described in the referenced AMM or other documents
that contain the procedure(s). These are the actual instructions on how to perform
the GVI, DET, and restoration/cleaning tasks that support the task descriptions listed in the MRBR and MID.
e) Supporting task procedure(s) if any, necessary to perform the task procedure
in any other document referenced by the task procedure.
f) Instructions for protections and caution information that will minimize
contamination and accidental damage to the EWIS. These can appear in different
places, such as in the AMM or in the SWPM/ESPM. This information, if contained
in the SWPM/ESPM (or other similar documents), should be in its chapter 20.
Sometimes this information is repeated in the standard practices chapter 20
of the AMM. In any case, it is general protections and caution information,
and it is not expected that unique procedures will be developed for individual
EWIS ICA for a particular airplane model or even models produced by the same
manufacturer. The AMM or SWPM/ESPM will reference any protection and caution information specific to EWIS ICA.
C. EWIS Source Document. Section
that the EWIS ICA developed in accordance with the requirements of §
be in the form of a document appropriate for the information to be provided and must
be easily recognizable as an EWIS ICA. This document must either contain the
required EWIS ICA or specifically reference other sections of the EWIS ICA that
contain this information. This document is referred to as the source document. Section
not prescribe a specific data form. The form is at the discretion of the DAH, as long as it meets the requirements of §
entire EWIS ICA can be in the source document, or the source document can point
to a series of other documents, such as the MRBR, MPD, MID, AMM, or SWPM/ESPM, which contain the EWIS ICA.
1) The FAA Oversight Office has approved the airplane model specific
source documents. Operators will use the source document to identify and locate the EWIS ICAs and incorporate them in their maintenance program.
2) The DAH will revise the source document as new or revised
EWIS ICAs are developed. They will then provide the revised source document to operators after the document has been approved by the FAA Oversight Office.
D. PI Action.
1) PIs must review and familiarize himself or herself with the
source document and any maintenance documents identified in the source document
that pertain to the specific airplane model(s) in the operator’s fleet.
2) The PI must ensure that the operator has properly identified
and accounted for all of the components of each EWIS ICA identified in the source
document and ensure that all components are included in the operator’s maintenance
program/manuals job/task cards and Engineering Order (EO)/authorizations where appropriate.
3) The PI will review and approve the incorporation of the EWIS ICAs into the operator’s
maintenance program. When the review is complete, the PI will issue or amend
Operations Specification (OpSpec)/Management Specification (MSpec) D097, Aging
Aircraft Programs. The operator must have procedures in its maintenance program/manual
to notify the PI when EWIS ICAs are revised by the DAH or the operator.
that any EWIS maintenance program changes identified
in subparagraphs (c) and (d) of those sections and any later revisions be submitted to the responsible PI for review and approval.
E. Controlling Reference Numbers. Controlling reference numbers
for the individual EWIS ICA tasks are listed in the MRBR, MPD, MID, or other
maintenance documents. An example of a controlling reference number in an MRBR
is “MM/MPD ref. 20-XXX-XX.” This number corresponds to a cross-reference number in the
source document and the AMM, which is the actual maintenance task with
all associated instructions to accomplish it. The DAH may refer to these reference
numbers as MRBR, AMM/MPD reference, Maintenance Significant Item (MSI) reference,
task number, etc. The DAH will identify all reference numbers necessary to fully
identify and track the EWIS ICAs. All reference numbers considered necessary
to fully identify and track the EWIS ICAs should be considered part of the EWIS ICAs.
F. DAH Revisions to EWIS ICAs. The DAH will revise the source
document in order to account for any new or revised EWIS inspection or restoration
procedures developed due to production changes or design changes mandated by
Airworthiness Directives (AD). They will provide the revised source document
to operators after the document has been approved by the FAA Oversight Office.
G. EWIS ICAs Required by §
addition to EWIS ICAs that are required and developed under §
existing in-service airplanes, there will also be EWIS ICAs developed under §
new airplane TCs or when 14 CFR part
the holder of an amended TC or an STC to comply with a corresponding amendment to part
was issued on or after the date of the applicable part
referred to as the “Changed Product Rule.” The EWIS ICAs required by §
developed under §
stated, an operator can have airplanes that have EWIS ICAs developed under §
EWIS ICAs developed under §
25.1729, which includes all of §
H. EWIS ICAs Required by §
DAH (TC and STC) is required to develop ICAs for the “representative airplane’s” EWIS (refer to Appendix 2 of AC
of Electrical Wiring Interconnection Systems Instructions
for Continued Airworthiness into an Operator’s Maintenance Program) according to §
26.11, as follows:
1) TCH-Developed EWIS Inspection and Restoration Tasks. The TCH
develops EWIS ICAs in accordance with § H25.5(a)(1) and (b) which are invoked either by §
25.1729 or §
(c) utilizing the MSG-3 logic contained in the A4A Operator/Manufacturer
Scheduled Maintenance Development Document (MSG-3), Revision 2005.1 and later revisions, and AC
EWIS ICAs will be identified as EWIS ICAs, as required by §
the source document developed by the TCH. As stated in the discussion earlier in this section, the TCH will:
a) Develop a source document that contains all required EWIS ICA data;
b) Develop a source document that references other maintenance documentation
that contains the required EWIS ICA data; or
c) Utilize an existing document, such as the MRBR, MPD, or MID.
NOTE: TCHs with §
their certification basis will develop EWIS ICAs in accordance with §
H25.5(a) and (b).
2) STC/Amended TC Holders. STC/amended TC holders are only required to develop EWIS ICAs in compliance with §
if required or elected, in compliance with §
the application date for the STC, or any change to existing STCs was before December 10, 2007, and the FAA issued the certificate on or
after December 10, 2007. New STC or amended applications filed after the effective
date of the rule (December 10, 2007) are also required to develop FAA Oversight Office-approved EWIS ICAs in compliance with §
if required or elected, in compliance with §
NOTE: STC/amended TC holders with §
their certification basis will develop EWIS ICAs in accordance with §
H25.5(a) and (b).
6-2729 WHY EWIS ICA APPROVAL IS NECESSARY. The FAA has determined
that EWIS ICAs must be approved by the cognizant FAA Oversight Office. The development
of EWIS maintenance and inspection requirements can be complex, requiring qualitative
engineering and maintenance assumptions. Approval will help ensure standardized
application of these assumptions (e.g., zone density, zone size, potential effects
of fire, and environmental effects). FAA approval also ensures that operators
can use the data/documents to comply with the operational requirements in the EAPAS/FTS rule, and that the data delivered to the operators will be standardized.
6-2730 OPERATOR INCORPORATION OF EWIS ICAs INTO THE MAINTENANCE PROGRAM. Sections
the PI to review and approve EWIS ICA maintenance program changes. When the review is complete, the PI will issue or amend OpSpec/MSpec D097.
A. PI Action for Inspection and Restoration Tasks/Intervals.
1) PIs must ensure that the operator incorporates the FAA Oversight
Office-approved EWIS inspection and restoration tasks and task intervals into
its maintenance program/manual. This includes the operator’s job/task cards,
and any other documents the operator may use in administering its maintenance program, such as EO/authorizations, as applicable.
2) PIs must ensure that the operator has procedures in its manual
to notify the PI of any revisions to the DAH inspection and restoration tasks and intervals.
B. Instructions and Procedures. The FAA Oversight Office-approved ICA instructions/procedures
to perform the EWIS tasks will be contained in the source document, or the source
document will point to other manuals that contain the instructions and procedures
such as the AMM/SWPM/ESPM. Operators must incorporate these instructions/procedures
into their maintenance program/manuals and job/task cards. It is especially
important that the job/task cards contain all the instructions and procedures that support the EWIS tasks.
NOTE: The operator can develop its own instructions and procedures to
carry out the EWIS tasks provided that those developed by the operator produce
an equivalent result to those approved by the FAA Oversight Office, and the
AMM/SWPM/ESPM allows the use of alternative or equivalent tools or materials; in this case, further approval by the FAA Oversight Office is not
required. If the operator proposes to change the instructions and procedures,
the PI must find the supporting technical justification/data acceptable upon submittal.
C. PI Action for Instructions and Procedures. PIs must ensure
that the operator incorporates the FAA Oversight Office-approved ICA instructions
and procedures to perform the EWIS task into its maintenance program/manual,
and job/task cards and any other documents the operator may use to administer its maintenance program, such as EO/authorizations, as applicable.
D. Protections and Caution Instructions/Information. The EWIS
ICAs also include protections and caution instructions/information that will
minimize contamination and accidental damage to the EWIS during the performance
of maintenance, alterations, or repairs. The TCH has developed these protections
and caution instructions/information to support the EWIS maintenance program
for the airplane. STC holders may develop their own protections and caution instructions/information, or they may choose to use that of the TCH.
NOTE: These protections and caution instructions/information will be
in the source document, AMM, or SWPM/ESPM. They are FAA Oversight Office-approved.
It is important that the operator apply these protections and cautions to minimize
contamination and accidental damage to EWIS when performing maintenance, alteration,
or repairs. It is also important to clean the EWIS and surrounding area after
completion. These protections and caution instructions/information must be incorporated into the operator’s maintenance program/manual.
E. PI Action Protections and Caution Instructions/Information.
The PI must ensure that the operator incorporates the FAA Oversight Office-approved
protections and caution instructions/information into its maintenance program/manual
and job/task cards, and any other documents the operator may use to administer
its maintenance program, such as EO/authorizations, as applicable. In addition,
the operator must have procedures in its maintenance program/manual that instruct
its maintenance personnel “to clean the EWIS and surrounding area after completion
of any maintenance, alterations, or repairs.” It is especially important to include the same or a similarly worded statement on the job/task card.
1) The operator must have procedures in its maintenance program/manual
that instructs its maintenance program development personnel who write/revise
manuals and job/task cards, and engineering personnel who develop/revise EOs,
that all FAA Oversight Office-approved protections and caution instructions/information
must be incorporated in those documents as appropriate. It is especially important
to include the protections and caution instructions/information on the job/task cards.
2) Operator-developed job/cards that include EWIS inspection
and restoration tasks must have the protections and caution information and
instructions included on the job/task card. Similarly, EOs that affect the EWIS must have protection and caution instructions/information included.
6-2731 STC/APPLICANTS/AMENDED STC HOLDER-DEVELOPED EWIS ICAs.
A. Applicability. The part
in the EAPAS/FTS rule applies to new STC applicants and STC or amended STC applications before December 10, 2007, and the certificate was
issued on or after December 10, 2007. The rule also applies to new STC or amended
STC applications filed after the effective date of the rule. It does not retroactively apply to any STCs installed prior to December 10, 2007.
B. New/Amended STC Applications. Section
new or amended STC applications filed after the effective date of the rule to be evaluated and, if necessary, develop and submit the necessary
revisions for review and approval to the FAA Oversight Office. If an operator
develops its own STC, which creates new EWIS ICAs, the FAA Oversight Office must approve them.
C. PI Action STC/Amended STC Holder-Developed EWIS ICAs.
1) The operator must submit its STC/amended STC EWIS ICAs to
the FAA Oversight Office for approval. This includes providing supporting technical justification/data.
2) The PI must ensure that the operator has included any FAA
Oversight Office-approved STC/amended STC EWIS ICA changes into its maintenance program.
6-2732 STC LIMITATION.
A. Regulation. Part
not prohibit issuing an STC even if the STC applicant had not yet met the requirements of that section. In this case, the FAA added a limitation
to the STC. FAA engineering policy memo PS-AIR-100-2007-12-27B, Enhanced Airworthiness
Program for Airplane Systems (EAPAS) Supplemental Type Certificate (STC) Limitation,
dated July 7, 2008, describes how, why, and when the FAA did this. You can download an electronic copy at
B. Limitation Statement. It is important that the PI understand
that this is a limitation on the installation of the STC, not on the operation
of airplanes on which the STC was installed previously. The following statement was added to the “Limitation” section of the STC:
“This modification may not be installed after August 30, 2010,
unless (1) previously approved electrical wiring interconnection system (EWIS)
instructions for continued airworthiness (ICA) have been evaluated and determined
to be adequate for this installation by the FAA, or (2) revised EWIS ICA have been approved by the FAA Oversight Office. (Refer to §
C. Installation After August 30, 2010.
1) In order for the operator to install the STC after August
30, 2010, the PI must ensure that the operator has one of the following:
a) A letter from the FAA Oversight Office stating that the previously approved
EWIS ICA have been evaluated and shown to be adequate for the modification.
The operator must request this letter from the FAA Oversight Office to ensure that the STC has been evaluated in accordance with §
(2) prior to installation.
b) A revised EWIS ICA that the FAA Oversight Office has approved for the
STC modification. The revised EWIS ICA should be provided to the operator by the STC holder.
2) In both cases the PI should verify that the EWIS ICA installed after August 30, 2010 are FAA Oversight Office approved.
D. Existing STCs After August 30, 2010. As stated in subparagraph 6-2732B,
this is a limitation on installation, not operation. Operators can continue
to operate their airplanes with the existing STCs after August 30, 2010. The operator has no obligation under the operation rules (§§
develop EWIS ICAs for the existing STC. If the STC holder provides EWIS ICAs for the previously incorporated STC (STC installed after the effective
date of the rule), the operator must incorporate the EWIS ICAs into its maintenance program.
6-2733 REQUIREMENT TO ENSURE COMPATIBILITY BETWEEN FTS AND EWIS ICAs.
A. Purpose. The EAPAS/FTS rule requires the DAH to review any
FTS ICAs developed to comply with SFAR 88, Fuel Tank System Fault Tolerance
Evaluation Requirements. This ensures compatibility with the EZAP-generated EWIS ICAs and minimizes duplication of requirements between them (refer to AC
more information on EZAP). Fuel tank wiring is part of the EWIS. The FTS maintenance and inspection requirements might be more specific
than those for wiring in general, and might contain additional requirements.
B. DAH Review. The DAH (TC/STC) will review the two ICAs to ensure
that any maintenance tasks for EWIS do not compromise FTS wire requirements,
such as separation or configuration specifications. The DAH will list these
EWIS and FTS tasks and intervals in its maintenance program documents, such
as the source document, MRBR, MID, and the MPD for the airplane. The DAH will
identify them as EWIS ICAs or EWIS/SFAR 88 ICAs. The STC holder will list its ICA in the STC source document it provides.
C. PI Action. The PI must ensure that the operator is fully aware
of the criticality of wiring separation and configuration, especially for those
that have AD requirements. The PI must ensure that the operator has procedures
in its maintenance program/manual that address separation and configuration
of EWIS, especially when performing a repair or alteration to the EWIS or FTS
wiring. One way for the operator to accomplish this is to provide a cautionary
statement on job/task cards and EO/authorizations about the criticality of wiring
separation and configuration, and that it must be maintained. Further, the FAA
Oversight Office must approve any operator changes to separation and configuration of EWIS or FTS wiring.
6-2734 CHANGES TO OPERATOR’S EWIS TASK OR INTERVALS.
A. Types of Changes. There are two types of changes to the operator’s EWIS ICAs:
1) Deletion of or changes to an EWIS task.
2) Escalation of an airplane check package/interval, such as a “C check” containing EWIS tasks and intervals.
B. FAA Oversight Office Approval. If the operator proposes to
delete or change an EWIS task, it must be FAA Oversight Office approved.
C. PI Action.
1) If the operator proposes to delete or change an EWIS task,
it must submit any proposed changes along with technical justification/data
through the PI. The PI adds comments, if any, and forwards the proposed changes and data to the FAA Oversight Office for approval.
2) The PI must review the operator’s submittal and ensure that
the technical justification/data is fundamentally sound before providing comments for the FAA Oversight Office to review. For example:
a) Is the proposed deletion because the task is already part of an existing
task within the operator’s maintenance program, thereby being duplicative?
b) Is the proposed change because the operator has a different or more efficient
way of accomplishing the task? If so, the operator needs to explain in its proposal
how the change is different or more efficient without compromising the intent of the original task or safety.
D. Escalation of an Airplane Check/Package Interval. If the operator
proposes an escalation of an airplane check/package interval such as the “C
check” that contains EWIS ICA tasks and intervals, the FAA Oversight Office
is not required to approve the change. This change is within the authority of the PI and the procedures in the operator’s manual.
6-2735 OPERATOR MAINTENANCE TRAINING PROGRAM. The EAPAS/FTS rule
does not have a specific requirement for operator EWIS training. It is important
that operators have an EWIS maintenance training program to ensure that each
person (including inspection personnel) who determines the adequacy of work
completed is fully informed about procedures, techniques, and new equipment in use, and is competent to perform their duties. AC
Electrical Wiring Interconnection Systems Training Program, provides guidance to develop EWIS training.
A. Operator Maintenance Training Programs under EAPAS/FTS Rule.
The EAPAS/FTS rule introduced new requirements that affect DAH and operators.
To fully realize the objectives of EAPAS/FTS requirements, the FAA encourages
operators to reevaluate their current philosophical approach to maintaining,
inspecting, and altering aircraft wiring and systems in the aircraft. The FAA
has also adopted the “Protect and Clean as You Go” philosophy. This philosophy stresses:
1) The importance of protective measures when working on or around the EWIS.
2) The importance of protecting EWIS during structural repairs,
STC installations, or other alterations by making sure that metal shavings,
debris, and contamination resulting from such work are removed during work in progress and after completion.
B. Application. The operator can apply this philosophy to aircraft
wiring through the inclusion of protections and caution instructions/information in the maintenance program/manual and AC
philosophical approach begins at the airplane manufacturer with maintenance program enhancements, maintenance manual changes, and maintenance
training programs. In addition, there will be new maintenance manual and job
card procedures, inspection devices, graphical information showing required
tasks, or changes in tasks such as wiring splicing. Operators must provide training
to maintenance, inspection, and engineering personnel, including persons who
write and edit job/task cards. They should ensure that their contract maintenance providers are included. The FAA published AC
assist operators in development of EWIS training programs.
C. Fuel Tank System Wiring. Operator maintenance training programs
must emphasize the EWIS as a system on the aircraft that includes fuel tank
system wiring. In this case, the requirements for fuel tank system maintenance
and inspection might be more specific than those for wiring in general, and
might contain additional requirements that protect the fuel tank system ignition
prevention features. The operator must maintain, inspect, and repair all EWIS
in accordance with their manual, the AMM, the SWPM/ESPM, or other FAA-accepted methods, techniques, and practices.
6-2736 OPERATOR INCORPORATION OF FAA-APPROVED EWIS ICA INTO THE MAINTENANCE PROGRAM.
A. Operational Rules Requirement. The operational rules require part
121 and part
to incorporate FAA Oversight Office-approved EWIS ICAs (inspections and procedures), which include inspection tasks, task intervals, instructions/procedures
to accomplish those tasks, and protection and caution instructions/information for the EWIS, into their maintenance program.
B. PI Action for Inspection/Restoration Tasks/Intervals.
1) The PI must ensure that the operator incorporates the FAA Oversight Office-approved
EWIS ICA inspections and procedures for EWIS into its maintenance and inspection program.
2) The PI must ensure that the operator has policy and procedures
in its manual to notify the PI of any revisions to the TC/STC holder inspection tasks and intervals.
3) The TCH controlling reference numbers uniquely identify the
EWIS ICAs for identification and traceability purposes throughout the operational
life of the airplane. The operator should use these controlling reference numbers
or an operator-developed system that correlates to these numbers for the purposes
of traceability. This will help prevent inadvertent deletion, changes to the
type of task, or escalation of EWIS ICAs without proper consideration of the
reason for the task and its interval. The tracking system should correlate to
the controlling reference number for the EWIS ICAs and be acceptable to the PI.
6-2737 OPERATORS THAT ARE AUTHORIZED OPSPEC/MSPEC D097 FOR EWIS. The issuance
of OpSpec D097 signifies the FAA has reviewed the certificate holder’s policy
and procedures incorporated into their maintenance and inspection programs for compliance with §
Aircraft Program rules. Table 1 of D097 will consist of three columns that list:
• The Aging Aircraft Program rules;
• The manual and section where the policy and procedures are
located for the applicable Aging Aircraft Program; and
• The date of the manual and section where the current policy and
procedures are located for the applicable Aging Aircraft Program.
NOTE: Figure 6-114 below illustrates a D097 Table 1 that lists the 14 CFR part rules.
Figure 6-114. Sample D097 Table 1 – Aging Aircraft Maintenance Programs
A. Submission to PI for Review. Initial submission and any later
revisions to the operator/certificate holder’s maintenance and/or inspection
program policy and procedures must be submitted to the PI for review for compliance with the Aging Aircraft Program rules.
B. Operator Action. An operator/certificate holder must have
procedures to ensure that ICAs are incorporated into their maintenance and/or inspection program.
C. Procedures for Tracking Changes and Approvals. The PI must
ensure that the operator/certificate holder has procedures in its manual that
track any changes and approvals made to the FAA Oversight Office‑approved EWIS/FTS ICAs.
6-2738 TASK OUTCOMES. If not already accomplished, document that
the operator has successfully incorporated the FAA Oversight Office-approved
EWIS ICAs into its maintenance program by issuing or amending OpSpec D097.
A. Complete the PTRS Record for Part
Open a new PTRS record using the PTRS codes in this section.
Enter “EWIS” in the “National Use” block of section I. In section IV, the “Comment” block, annotate the following:
1) Document that the operator has incorporated the applicable EWIS ICAs into its maintenance program.
2) Record the signature date of the EWIS OpSpecs.
B. Ongoing Surveillance of Part
Carriers. Follow SAS guidance.
C. Ongoing Surveillance of Part
To ensure the operator continues to comply with its EWIS requirements, accomplish and record surveillance activities using the PTRS codes
listed in this section, using “EWIS” in the “National Use” block. Enter the
findings in the PTRS database in accordance with existing procedures.
RESERVED. Paragraphs 6-2739 through 6-2754.