SDR UPS96821200

Service difficulty report · Hook Assy · Doug DC873F

Difficulty date: September 30, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N812UP
Make and model: Doug DC873F
Aircraft serial: 46112
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Hook Assy
Condition: Failed
Location: Mlg
Stage of operation: CL
Nature of condition: O
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFTER TAKEOFF, GEAR WOULD NOT RETRACT. RAN CHECKLIST. SAW SOMETHING WHITE FLAPPING ON RIGHT SIDE OF STRUT. AIR TURN BACK TO DEN. FOUND HOOK ASSY SEPARATED FROM ANTI-RETRACTION ACTUATOR DUE TO CORROSION OF HOOK ASSY. REPLACED HOOK ASSY. GROUND SHIFT CHK NORMAL.

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