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AD 47-14-02

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Airworthiness directive · Main Landing Gear Motors · Boeing S-307, SA-307B and SA-307B-1

FAA copy· 19 KB
Download from FAA DRS
AboutSource files 1
Models
S-307, SA-307B, SA-307B-1
Data sheets
TCDSA-726TCDSTC 719
Product
Aircraft · Large airplane

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

47-14-02 BOEING: (Was Mandatory Note 3 of AD-719-1 and Mandatory Note 3 of AD-726- 1.) Applies to 307 Series Aircraft. Compliance required prior to May 15, 1947. Inspect the attachment of the main landing gear motors to the retracting unit. Determine, by testing, that the keys in these locations have been heat treated to 200,000-220,000 pounds per square inch. All keys that do not meet this strength specification should be replaced. Aircraft which have had this attachment revised to include an additional gearbox for the hand retracting drive are not subject to this inspection. (TWA E.O. No 3489 covers this same subject.)

Affected TCDS · 2

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

TCDS A-726The Boeing CompanyNames all 2 models: SA-307B-1 and SA-307BTCDS TC 719The Boeing CompanyNames 1 of 1 model: S-307

Registered aircraft

No registered aircraft matched this AD’s modelsForeign aircraft aren’t included, and ADs on propellers and appliances aren’t matched by model.