# SDR 96ZZZX4753

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N26635
- Make and model: Cessna 414A
- Registry model: [Cessna 414A](https://openairdocs.org/model/cessna-414a) (OpenAirDocs)
- Aircraft serial: 414A0531
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock Hook
- Part number: 57412026
- Condition: Cracked
- Location: Lt Mlg
- Part time: 4,552 hours
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX4753

## Discrepancy

UPLOCK HOOK FOUND CRACKED AFTER GEAR WOULD NOT RETRACT AND REMAIN IN UPLOCK.  ALSO, FOUND P/N 5141204-3, CRACKED AT FORWARD BLOCK ATTACH HOLE.  HOOK CRACKED AT RADIUS OF MLG RETAINING CUT OUT.  UNABLE TO DETERMINE IF DAMAGE OCCURRED UPON LAST EXTENSION OR RETRACTION.  SUBMITTER SUSPECTS WEAK HOOK DESIGN AND INADEQUATE MATERIAL THICKNESS ON SUPPORT COMPOUNDED BY AGE.

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