# SDR CALA0400739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2004
- Submitted: December 9, 2004
- Operation: Air carrier
- Aircraft: [N12327](https://openairdocs.org/aircraft/N12327), registered now
- Make and model: Boeing 7373T0
- Aircraft serial: 23457
- Aircraft time: 55,271 hours, 28,793 cycles
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: Actuator
- Part number: 651781914
- Part serial: SC916
- Condition: Inoperative
- Location: Nlg
- Part time: 746 hours, 393 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/CALA0400739

## Discrepancy

THE RED NOSE GEAR UNSAFE LIGHT ILLUMINATED AND THE NOSE GEAR WOULD NOT EXTEND WHEN GEAR HANDLE WAS LOWERED ON APPROACH TO IAH.  THE GEAR WAS CYCLED DURING A GO-AROUND AND THE GEAR EXTENDED NORMALLY WITH NORMAL INDICATIONS.  MAINTENANCE FOUND THE NLG LOCK ACTUATOR AT FAULT.  THE NLG LOCK ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-33-21.  THE GEAR WAS CYCLED 10 TIMES AND ALL OPERATION CHECKED NORMAL.

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