# AD 69-13-06: Wing Fuel Access Door Bolts

- Type: Airworthiness directive
- Status: Current
- Products: Maryland Air Industries F-27, F-27A, F-27B, F-27F, F-27G, F-27J and F-27M
- Effective: July 9, 1969
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-788
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/79216CFC7DE05FD1862569850066A708.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/69-13-06

## The airworthiness directive

69-13-06 FAIRCHILD-HILLER: Amdt. 39-788. Applies to F-27 Type Airplanes, Serial Nos. 1 through 75, Certificated in all categories.

Compliance required within the next 400 hours' time in service after the effective date of this AD, unless already accomplished.

To reduce working of the wing outer panel fuel access door attach bolts, and to prevent possible cracking of the lower skin radiating from the holes drilled for attaching screws of the nut retainer plate assembly, accomplish the following:

  (a) For Serial Nos. 1 through 65 airplanes, comply with Fairchild Hiller Service Bulletin No. 57-4, Revision 2, dated October 31, 1963, or equivalent method, approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

  (b) For Serial Nos. 1 through 75 airplanes, comply with Fairchild Hiller Service Bulletin 57-5, Revision 1, dated April 21, 1966, or equivalent method, approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.(c) Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

This amendment is effective July 9, 1969.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 7A1](https://openairdocs.org/tcds/7A1): Maryland Air Industries Inc.; names 7 of 12 models: F-27, F-27A, F-27M, F-27J, F-27F, F-27B, F-27G

## 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: 1 (1 by airframe model, 0 by engine model)
- Makers: Fairchild 1

Models with the most aircraft:

- [Fairchild F-27F](https://openairdocs.org/model/fairchild-f-27f): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/69-13-06/models.md
Every aircraft: https://openairdocs.org/ad/69-13-06/aircraft.md

Its text cites no advisory circulars or STCs.

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