# SDR 2004F00178

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 19, 2004
- Submitted: July 20, 2004
- Operation: Air carrier
- Aircraft: N451TA
- Make and model: Airbus A320-233
- Registry model: [Airbus A320-233](https://openairdocs.org/model/airbus-a320-233) (OpenAirDocs)
- Aircraft serial: 733
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Sensor
- Part number: 848401
- Condition: Malfunctioned
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004F00178

## Discrepancy

DURING CLIMB, NLG REMAINED UNLOCKED & A/C RETURNED TO STATION FOR MX.  AFTER LANDING, INSPECTION OF NLG PERFORMED PER AMM, & REMOVED TWO NLG PROXIMITY SENSORS PER AMM.  PERFORMED BITE TEST PER AMM, & FOUND NORMAL.  A VERIFICATION OF NLG HINGE BEARING CLEARANCES PERFORMED PER AMM & FOUND WITHIN LIMITS.  A DETAILED VISUAL INSPECTION OF LANDING GEAR UPLOCK, DOOR UPLOCK UNITS & PINS WERE PERFORMED PER AMM 32-31-00-2000.  ALSO, THE LGCIU (P/N 6647000500A4D)NR 1 WAS REPLACED AND TESTED PER AMM 32-31-71-000-001. A FUNCTIONAL AND OPERATIONAL TEST OF THE NORMAL EXTENSION RETRACTION WAS PERFORMED PER AMM 32-31-00-720-003.  SATISFACTORY RESULTS WERE NOTED ON ALL THE SYSTEM.  THE AIRCRAFT RETURNED TO NORMAL OPERATION.  (M)

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