3-4 Systems Training Program, to assist operators in development of the EWIS training programs.
3.4.4 Manufacturer-D eveloped Training Programs. Operators can also take advantage of any airplane manufacturer-developed training programs that address the EWIS.
3.5 Operator’s Maintenance Program Approval Under §§ 121.1111 and 129.111.
Operators of transport category airplanes to which §§ 121.1111 and 129.111 apply must incorporate the EWIS ICA into their maintenance programs inspections and procedures for EWIS on the basis of ICA developed in accordance with the provisions of § H25.5(a)(1) and (b), or § H25.4 and all of § H25.5, as applicable. Sections 121.1111(e) and 129.111(e) state that these changes to the maintenance program and any later revisions to the EWIS provisions of the maintenance program must be submitted to the PI for review and approval. The operator will submit to the PI for review the revisions to their maintenance program incorporating inspections and procedures for EWIS, and their revisions. The PI will ensure the operator has incorporated into their maintenance programs inspections and procedures based on EWIS ICA and any subsequent revisions that have been approved by the responsible Aircraft Certification Service office. When the review is complete, the PI will issue or amend Operations Specification (OpSpec)/Management Specification (MSpec) D097, Aging Aircraft Programs.
3.6 Operations That are Authorized OpSpec D097. The issuance of this OpSpec signifies the FAA has reviewed the operator’s, certificate holder’s (CH), or program manager’s policy and procedures incorporated into their maintenance programs for compliance with the Aging Aircraft Program rules. Table 1 of D097 will consist of three columns that list:
• The applicable 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 1: Table 3-1 below illustrates a sample D097 Table 1 that lists the various 14 CFR part rules. The operator/CH/program manager will have a specific OpSpec D097 template for their operation.
Note 2: If the rule does not apply to the CH’s operation, list the associated rule f or their operation (e.g., § 121.1113) in the first column and enter “N/A” in the second and third columns.
3-5 Table 3-1. Sample D097 Table 1 – Aging Aircraft Maintenance Programs Aging Aircraft Program Rules Certificate Holder/Program Manager’s Maintenance and Inspection Program Policy and Procedures (Manual and Section) Date Repairs Assessment for Pressurized Fuselages — § 121.1107, § 129.107
Supplemental Inspections — § 121.1109, § 129.109
Electrical Wiring Interconnection Systems (EWIS) Maintenance Program — § 121.1111, § 129.111
Fuel Tank System Maintenance Program — § 121.1113, § 129.113
Flammability Reduction Means — § 121.1117, § 129.117
3.6.1 Submission to PI for Review.
3.6.1.1 Initial submission and any subsequent revisions to these policy and procedures sections must be submitted to the PI for review for compliance with the Aging Aircraft Program rules.
3.6.1.2 Any changes to the operator/CH/program manager’s maintenance program policy and procedures must be submitted to the PI for review and approval.
When the maintenance program policy and procedures are revised, the date of the revision will be inserted into column 3 of Table 3-1.
3.6.2 FAA Aircraft Certification Service Office-Approved ICAs. Any proposed revisions or deletions of responsible Aircraft Certification Service office-approved ICAs must be coordinated with the PI for review and concurrence. The PI will then forward the proposed revisions or deletions to the responsible Aircraft Certification Service office for approval prior to implementation or incorporation into the maintenance program.
3.6.3 O perator Action. An operator/foreign air carrier/foreign operator must have procedures to ensure that EWIS ICAs for inspections and procedures are incorporated into their maintenance program.
Appendix A A-1 APPENDIX A. ACRONYMS 14 CFR Title 14 of the Code of Federal Regulations A4A Airlines for America AC Advisory Circular AD Airworthiness Directive AED Aircraft Evaluation Division AIR Aircraft Certification Service ALS Airworthiness Limitations Section AMM Aircraft Maintenance Manual APU Auxiliary Power Unit ASI Aviation Safety Inspector CH Certificate Holder CMM Component Maintenance Manual CWT Center Wing Fuel Tank DAH Design Approval Holder DET Detailed Inspection DRS Dynamic Regulatory System EA Engineering Authorization EAPAS Enhanced Airworthiness Program for Airplane Systems EAPAS/FTS Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety EO Engineering Order ESPM Electrical Standard Practices Manual EWIS Electrical Wiring Interconnection System EZAP Enhanced Zonal Analysis Procedure FAA Federal Aviation Administration FQIS Fuel Quantity Indicator System FR Federal Register FS Flight Standards Service FTS Fuel Tank Safety GVI General Visual Inspection ICA Instructions for Continued Airworthiness MPD Maintenance Planning Document MRB Maintenance Review Board
Appendix A A-2 MRBR Maintenance Review Board Report MSG-3 Maintenance Steering Group – 3rd Task Force MSI Maintenance Significant Items MSpec Management Specification NTSB National Transportation Safety Board OEM Original Equipment Manufacturer OpSpec Operations Specification PI Principal Inspector SB Service Bulletin SFAR Special Federal Aviation Regulations STC Supplemental Type Certificate SWPM Standard Wiring Practice Manual TC Type Certificate TCH Type Certificate Holder TSB The Transportation Safety Board of Canada
Appendix B B-1 APPENDIX B. DEFINITIONS B.1 Affected Persons. For the purposes of this advisory circular (AC), operators and others required to comply with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) part 25, § 25.1729; part 26, § 26.11; part 121, § 121.1111; and part 129, § 129.111.
B.2 Aircraft Maintenance Manual (AMM). A manual developed by the manufacturer of a particular airplane that contains information necessary for the continued airworthiness of that airplane.
B.3 Airworthy. An aircraft, aircraft engine, or component which conforms to its type design and is in safe condition for operation.
B.4 Component Maintenance Manual (CMM). A manual developed by a manufacturer that contains information necessary for the continued airworthiness of a particular component.
B.5 Continued Airworthiness. Certified aircraft, engines, propellers, and appliances are safe to operate for the intended purpose; they are maintained safely throughout their service life; the product meets its type design and is in a condition for safe operation.
B.6 Design Approval Holder (DAH). For the purposes of this AC, a DAH is a type certificate holder (TCH) and Supplemental Type Certificate (STC) holder.
B.7 Electrical Wiring Interconnection System (EWIS). EWIS is defined in § 25.1701(a) to mean “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.”
Section 25.1701(a) includes a list of items that are specifically included in the definition of EWIS, and § 25.1701(b) includes a list of items that are specifically excluded from the definition of EWIS.
B.8 EWIS Certification and Operation Requirements. Part 25 subpart H contains certification and operation requirements for the airplanes’ EWIS. It requires the development of EWIS instructions for continued airworthiness (ICA) to be approved by the Federal Aviation Administration (FAA) responsible Aircraft Certification Service office (previously described as Aircraft Certification Office).
B.9 Enhanced Zonal Analysis Procedure (EZAP). A logical process for developing maintenance and inspection instructions for EWIS.
B.10 Flammable. Per 14 CFR part 1, § 1.1, “flammable, with respect to a fluid or gas, means susceptible to igniting readily or to exploding.”
B.11 Flight Standards Service (FS). Offices located in the FAA Flight Standards Service are responsible for developing guidance and policy applicable to transport category airplanes for Aircraft Evaluation Division (AED) personnel and FS personnel (Maintenance,
Appendix B B-2 Avionics, and Operations aviation safety inspectors (ASI)) in the conduct of their responsibilities.
B.12 Instructions for Continued Airworthiness (ICA). The information developed in accordance with applicable airworthiness requirements that includes the applicable inspection tasks, intervals, methods, processes, procedures, and airworthiness limitations (AL) to keep the product airworthy throughout its operational life.
B.13 Maintenance and Inspection Instructions. Information that provides for each part of the airplane and its engine auxiliary power units (APU), propellers, accessories, instruments, and equipment the recommended periods at which they should be cleaned, inspected, adjusted, tested, and lubricated, and the degree of inspection, the applicable wear tolerances, and work recommended at these periods necessary to provide for the continued airworthiness of the airplane. They also include the recommended overhaul periods and necessary cross-reference to the Airworthiness Limitations Section (ALS) of the manual.
B.14 Maintenance Implementation Document (MID). A document developed by one aircraft manufacturer that contains a comprehensive list of all EWIS and fuel tank safety (FTS) ICA which will satisfy the requirements contained in the Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety (EAPAS/FTS) operational rules.
B.15 Maintenance Planning Data. Data developed by the manufacturer of a particular airplane which contain the information each operator of that airplane needs to develop a customized, scheduled maintenance program.
B.16 Maintenance Review Board Report (MRBR). Intended for air carriers, a report which contains the initial minimum scheduled maintenance and inspection requirements for a particular transport category airplane and on-wing engine program. Air carriers may use those provisions—along with other maintenance information contained in the ICA—in the development of their maintenance programs.
B.17 Maintenance Steering Group – 3rd Task Force (MSG-3). A voluntary structured process developed by the industry and maintained by Airlines for America (A4A) to make decisions used to develop maintenance and inspection tasks and intervals for an airplane.
B.18 Products. Certified aircraft, engines, propellers, and appliances.
B.19 Representative Airplane’s EWIS. For the purposes of the EAPAS/FTS Rule, the “representative airplane’s” EWIS is the configuration of each model series airplane that incorporates all variations of the EWIS used in production on that series airplane and all TCH-designed modifications mandated by Airworthiness Directive (AD) as of the effective date of the rule.
Appendix B B-3 B.20 Responsible Aircraft Certification Service Office. The responsible Aircraft Certification Service office having oversight responsibility for the relevant type certificate (TC) or STC, as determined by the Administrator.
B.21 STC-Developed EWIS ICA. STC holders may use the Maintenance Review Board (MRB) process or any other process they choose. Regardless of the process used, the end result must be ICA that include the applicable inspection tasks, intervals, methods, processes, and procedures to keep the EWIS airworthy throughout its operational life.
B.22 STC EWIS ICA. The inspections and procedures to keep an alteration affecting the EWIS approved under an STC airworthy throughout its operational life.
B.23 TCH EWIS ICA. The inspections and procedures to keep the EWIS airworthy throughout its operational life.
B.24 TCH Original EWIS ICA. The result of the MRB process. During this process, TCH-developed Maintenance Significant Items (MSI) are subjected to maintenance program development logic, such as in MSG-3 or later revisions. The result is an ICA that includes the applicable inspection tasks, intervals, methods, processes, and procedures to keep the EWIS airworthy throughout its operational life.
Appendix C C-1 APPENDIX C. CONTACT INFORMATION FOR QUESTIONS REGARDING
RESPONSIBLE AIRCRAFT CERTIFICATION SERVICE OFFICES C.1 For questions concerning Aircraft Certification Service (AIR) offices, contact Suzanne Masterson, Product Policy Management: Transport Airplanes and Engines Section (AIR-62A), Aircraft Certification Service, Federal Aviation Administration, 2200 South 216th St., Des Moines, WA 98189; telephone: 206-231-3211 or 425-227-1855; email: suzanne.masterson@faa.gov.
Advisory Circular Feedback Form If you find an error in this AC, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by contacting the Flight Standards Directives Management Officer at 9-AWA-AFB-120-Directives@faa.gov.
Subject: AC 120-102B, Incorporation of Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness into an Operator’s Maintenance Program Date: _____________________ Please check all appropriate line items:
An e rror ( proc edural or typographical) has been noted in paragraph ____________ on page _______.
Recommend paragraph _____________ on page __________ be changed as follows:
______________________________________________________________________ ______________________________________________________________________ In a future change to this AC, please cover the following subject:
(Briefly describe what you want added.)
______________________________________________________________________ ______________________________________________________________________ Other comments:
______________________________________________________________________ ______________________________________________________________________ I would like to discuss the above. Please contact me.
Submitted by: Date: ______________________