# SDR CALA2015010600012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2015
- Submitted: January 6, 2015
- Operation: Air carrier
- Aircraft: [N76021](https://openairdocs.org/aircraft/N76021), registered now
- Make and model: Boeing 777224
- Aircraft serial: 39776
- Aircraft time: 23,228 hours, 2,071 cycles
- System (JASC): [3250 · Landing Gear Steering System](https://openairdocs.org/jasc/3250)
- Part: Control Unit
- Part number: 75860004
- Part serial: 0955
- Condition: Malfunctioned
- Location: Nlg Steering
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2015010600012

## Discrepancy

MAIN GEAR STEERING EICAS WARNING MSG ON TAKEOFF ROLL AT ABOUT 20 - 30K.  DID NOT ENGAGE TOGA ABORTED TAKEOFF.  R & R MAIN GEAR STEERING CONTROL UNIT IAW AMM 32-53-02-420-801.  OPERATIONS CHECKED GOOD.

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