# SDR AALA201709189041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2017
- Submitted: September 21, 2017
- Operation: Air carrier
- Aircraft: N202UW
- Make and model: Boeing 757-2B7
- Registry model: [Boeing 757-2B7](https://openairdocs.org/model/boeing-757-2b7) (OpenAirDocs)
- Aircraft serial: 27811
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Sequence Valve
- Part number: 2670296M1
- Part serial: 0446
- Condition: Faulty
- Location: Nlg
- Part time: 42,156 hours, 16,344 cycles
- 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/AALA201709189041

## Discrepancy

AIRCRAFT WAS GROUNDED.  EMERGENCY DECLARED.  NOSE LANDING GEAR LIGHT DISAGREES WITH HANDLES.  ALTERNATE GEAR EXTENSION SUCCESSFUL.  LANDING UNEVENTFUL.  REMOVED AND REPLACED NOSE LANDING GEAR SEQUENCE VALVE PER AMM 32-34-00.  OPERATIONAL CHECK GOOD.

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