# SDR CA101213014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2010
- Submitted: March 15, 2011
- Operation: Air carrier
- Make and model: Beech A100
- Registry model: [Beech A100](https://openairdocs.org/model/beech-a100) (OpenAirDocs)
- Aircraft time: 17,577 hours
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Chain
- Part number: 5082001017
- Condition: Separated
- Location: Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA101213014

## Discrepancy

(CAN) NOSE LANDING GEAR FAILED TO EXTEND WHEN SELECTED, NOSE GEAR STOPPED APPROX. AT HALF EXTENSION, LT & RT MAIN GEAR DOWN AND LOCKED, AT TOUCH DOWN NOSE GEAR COLLAPSED. FAILURE CAUSE BY AFT NOSE GEAR DRIVE CHAIN FAILURE P/N 50-820010-17 THE WRITER WILL CONTINUE TO DETERMINE CAUSE FOR THIS FAILURE AND WILL ADVISE  AFTER FURTHER INVESTIGATION FOUND SEIZED BEARING P/N R12ZZ, INSTALLED IN BEARING ASSY.50-820140-3 CAUSING UNDO STRAIN/LOAD ON CHAINS.

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