AD 69-13-06

Airworthiness directive · Wing Fuel Access Door Bolts · Maryland Air Industries F-27, F-27A, F-27B and 4 more

Effective
July 9, 1969
Models
F-27, F-27A, F-27B, F-27F, F-27G, F-27J, F-27M
Data sheet
TCDS7A1
Registered aircraft
1 matched by model
Product
Aircraft · Large airplane
Amendment
39-788

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.

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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 TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 1

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Fairchild1 aircraft

By model

Aircraft