# SDR UPS96821200

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N812UP](https://openairdocs.org/aircraft/N812UP), registered now
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46112
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Hook Assy
- Condition: Failed
- Location: Mlg
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS96821200

## Discrepancy

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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