# SDR AALA201911189020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2019
- Submitted: November 18, 2019
- Operation: Air carrier
- Aircraft: [N197UW](https://openairdocs.org/aircraft/N197UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 3928
- Aircraft time: 35,168 hours, 13,612 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 132168
- Condition: No Test
- Location: Emergency Lights
- Part time: 35,168 hours, 13,612 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201911189020

## Discrepancy

AIRCRAFT NOT GROUNDED: MAINTENANCE FOUND 13WL FAULTING DURING PS CHECK. REMOVED & REPLACED EPSU ON POSITION 13WL. PERFORMED OPS CHECK IAW AMM 33-51-38 & TSM 33-51-00-810-836-A.

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