# SDR CALA2026052016418

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2026
- Submitted: May 20, 2026
- Operation: Air carrier
- Aircraft: [N432UA](https://openairdocs.org/aircraft/N432UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 587
- Aircraft time: 87,469 hours, 35,103 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Part number: C247300016
- Part serial: 1018
- Condition: Faulted
- Location: Nlg
- Part time: 87,466 hours, 35,101 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026052016418

## Discrepancy

MLG  NOT UPLOCKED AFTER TAKEOFF,  ECAM NO HELP PERFORMED BITE TEST OF LGCIU 1 AND 2. LGCIU 1 REPORTED FAULT "N LG UPLOCK (2530GM)/(2527GM)". PILOTS REPORTED CYCLING GEAR IN FLIGHT, NO HELP. FOUND BACKSHELL ON CONNECTOR IAW AMM 32-31-21/401 CONFIG 00 SHEET 2.   ELECTRICAL CONNECTOR LOOSE.  TIGHTENED BACKSHELL DOWN. GEAR UPLOCK LUBE WAS PERFORMED LAST NIGHT DURING A CHECK, TSM 32-31-00-810-865A STATES EXCESS GREASE CAN CAUSE INDICATION ISSUES. CLEANED EXCESS GREASE FROM UPLOCK ASSY. PERFORMED NLG GEAR SWING IAW AMM 32-31-00-720-003-A. FAULT PERSISTS. GEAR WILL RETRACT BUT NOT LOCK IN THE UP POSITIONS. GEAR DOORS STAY OPEN. REMOVED  NLG DOOR UPLOCK ASSY IAW AMM 32-31-14-000-002-A.  R & R NLG UPLOCK ASSY, IAW AMM 32-31-21-400-001-A. TASK COMPLETED UP TO INSTALLATION STEP C17, NEXT STEP IS E, CIRCUIT BREAKER CLOSING.   PERFORMED RII INSP OF NLG UPLOCK ASSY INSTALL IAW GMM 09-25-05 THROUGH STEP 4.C.(17) OF AMM 3ACP'D RII INSPECTION, VERIFIED FUNCTIONAL TEST OF NLG NORMAL EXTENSION / RETRACTION COMPLETED, OP-CHKD GOOD.

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