# SDR AALA202003119011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2020
- Submitted: March 11, 2020
- Operation: Air carrier
- Aircraft: [N563UW](https://openairdocs.org/aircraft/N563UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5368
- Aircraft time: 24,739 hours, 9,762 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Proximity Switch
- Part number: 852701
- Condition: Faulty
- Location: Thrust Reverser
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202003119011

## Discrepancy

AIRCRAFT GROUNDED - REJECTED TAKEOFF BELOW 80KTS, THRUST REVERSER #2 LIGHT ON EICAS. / ACCOMPLISHED TSM 78-30-00-810-848-B. FOUND PROXIMITY SWITCHES TO BE FAULTY. REMOVED AND REPLACED #2 THRUST REVERSER PROXIMITY SWITCHES, 4006KS (AALA202003099006) AND 4007KS (AALA202003119011), PER AMM 78-31-15. OPERATIONAL CHECK GOOD.

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