# SDR AALA202408225534

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2024
- Submitted: August 22, 2024
- Operation: Air carrier
- Aircraft: [N441UW](https://openairdocs.org/aircraft/N441UW), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 10684
- Aircraft time: 10,765 hours, 2,885 cycles
- Engine: Cfmint LEAP1A33
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Lock
- Part number: 612C3005027
- Part serial: WWD02431
- Condition: Warning Message
- Location: Zone 400
- Part time: 10,886 hours, 2,917 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202408225534

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO MIA DUE THE FLIGHT CREW REPORTING THAT DURING CLIMB A ENGINE 2 REVERSER MINOR FAULT AND A ENGINE REVERSER FAULT. THE AIRCRAFT LANDED SAFELY AT MIA WITHOUT FURTHER INCIDENT. FOR THE ENGINE 2 REVERSER MINOR FAULT MAINTENANCE ACCOMPLISHED TSM 78-37-00-810-843-A AND THE THRUST REVERSER CYCLING TEST WITH NO FAULTS NOTED. (AALA202408135603) ** SUPPLEMENTAL REPORT FOR AALA202408135534: MAINTENANCE REPLACED THE ELECTRICAL TERTIARY LOCK SYSTEM PER AMM 78-37-51. ALSO REPLACED RELAYS 2EG1 (AALA202408220571), 3EG1 (AALA202408221310), AND 4EG1 (AALA202408225980) PER AMM 78-37-00. A SATSFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED PER AMM 78-37-51 WITH NO FAULTS NOTED.

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