# AD 93-09-11: Aft Fuel Filler Tank Installation

- Type: Airworthiness directive
- Status: Current
- Products: Textron 400A
- Effective: June 17, 1993
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-8577
- Docket: 92-NM-240-AD
- Registered aircraft: 298 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50AF1489E245782686256A09005E3BF2.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/93-09-11

## The airworthiness directive

93-09-11 BEECH: Amendment 39-8577. Docket 92-NM-240-AD.

Applicability: Model 400A airplanes; serial numbers RK-2 through RK-33, inclusive; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent reduced structural integrity of the aft fuel filler tank installation, accomplish the following:

  (a) Within 200 hours time-in-service after the effective date of this AD, inspect the aft fuel filler tank installation to verify installation of attachment clips, part numbers 128-920021-61 and 128-920021-63, in accordance with Beechcraft Service Bulletin 2468, dated October 1992.

  (1) If the attachment clips are installed, no further action is required by this AD.

  (2) If no attachment clips are installed, prior to further flight, install the attachment clips in accordance with the service bulletin.

  (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Wichita Aircraft Certification Office (ACO), FAA, Small Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Wichita ACO.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita ACO.

  (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

  (d) The inspection and installation shall be done in accordance with Beechcraft Service Bulletin 2468, dated October 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Beech Aircraft Company, P.O. Box 85, Wichita, Kansas 67201-0085. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Small Airplane Directorate, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

  (e) This amendment becomes effective on June 17, 1993.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A16SW](https://openairdocs.org/tcds/A16SW): Textron Aviation Inc.; names 1 of 4 models: 400A

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 298 (298 by airframe model, 0 by engine model)
- Makers: Raytheon 216, Beech 43, Hawker Beechcraft 39

Models with the most aircraft:

- [Raytheon 400A](https://openairdocs.org/model/raytheon-400a): 216 aircraft (airframe model)
- [Beech 400A](https://openairdocs.org/model/beech-400a): 43 aircraft (airframe model)
- [Hawker Beechcraft 400A](https://openairdocs.org/model/hawker-beechcraft-400a): 39 aircraft (airframe model)

All 4 models: https://openairdocs.org/ad/93-09-11/models.md
Every aircraft: https://openairdocs.org/ad/93-09-11/aircraft.md

Its text cites no advisory circulars or STCs.

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