AC 120-98B

Advisory circular · Operator Information for Incorporating Fuel Tank Flammability Reduction Requirements into a Maintenance and/or Inspection Program

Approved
October 21, 2026
Last reviewed
October 28, 2026
Family
AC 120-98 · 4 versions
Revision
B
14 CFR parts
121, 125, 129

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed October 28, 2026.

Show pages 13–24

Appendix C C-1 APPENDIX C. FAA OVERSIGHT OFFICES Airplane Manufacturer FAA Oversight Office ATR – GIE Avions de Transport Régional International Validation Branch (AIR-730) Airbus International Validation Branch (AIR-730) BAE International Validation Branch (AIR-730) Boeing—Seattle Area West Certification Branch (AIR-770) and/or Integrated Certificate Management Office (AIR-500) Bombardier East Certification Branch (AIR-750) EADS CASA International Validation Branch (AIR-730) deHavilland East Certification Branch (AIR-750) Dornier International Validation Branch (AIR-730) Embraer International Validation Branch (AIR-730) Fokker International Validation Branch (AIR-730) Lockheed Martin East Certification Branch (AIR-750) Boeing—Long Beach (McDonnell-Douglas) West Certification Branch (AIR-770) and/or Integrated Certificate Management Office (AIR-500) SAAB International Validation Branch (AIR-730)

OMB Control Number: 2120-0746 Expiration Date:12/31/2027 Advisory Circular Feedback Form Paperwork Reduction Act Burden Statement: A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a currently valid OMB Control Number. The OMB Control Number for this information collection is 2120-0746. Public reporting for this collection of information is estimated to be approximately 20 minutes per response, including the time for reviewing instructions, searching existing data sources, gathering, and maintaining the data needed, completing, and reviewing the collection of information.

All responses to this collection of information are voluntary. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to:

Information Collection Clearance Officer, Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX 76177-1524.

If you find an error in this Advisory Circular, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by emailing this form to the Flight Standards Directives Management Officer at 9-AWA-AFB-120-Directives@faa.gov.

Subject: AC 120-98B, Operator Information for Incorporating Fuel Tank Flammability Reduction Requirements into a Maintenance and/or Inspection Program Date: _____________________ Please mark all appropriate line items:

☐ An error (procedural 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 using the information below.

Submitted by: Date: ______________________ FAA 1320-73 (01/25) SUPERSEDES PREVIOUS EDITIONS