# SDR ASMF201211006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2012
- Submitted: December 3, 2012
- Operation: Air carrier
- Aircraft: [N774AM](https://openairdocs.org/aircraft/N774AM), registered now
- Make and model: Boeing 777-2Q8
- Registry model: [Boeing 777-2Q8](https://openairdocs.org/model/boeing-777-2q8) (OpenAirDocs)
- Aircraft serial: 28689
- Aircraft time: 45,372 hours, 6,927 cycles
- System (JASC): [3251 · Steering Unit](https://openairdocs.org/jasc/3251)
- Part: Bypass Valve
- Condition: Failed
- Location: Nlg Steering
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF201211006

## Discrepancy

ACFT RETURNED TO PLATFORM DUE TO DURING TAXING THE NOSE WHEEL STEERING WAS STUCK.  MX PERSONNEL PERFORMED THE FIM 32-51 TASK 808 PROCEDURE, DETECTING THE BY PASS VALVE STUCK; SO THE VALVE ASSY WAS LUBRICATED IAW MM 31-51-07, TESTED CORRECT.

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