# SDR AALA201906129010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2019
- Submitted: June 12, 2019
- Operation: Air carrier
- Aircraft: [N151UW](https://openairdocs.org/aircraft/N151UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 5513
- Aircraft time: 21,357 hours, 8,624 cycles
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: Slide
- Part number: D31517617
- Part serial: A7174
- Condition: Faulty
- Location: L4 Door
- Part time: 62,028 hours, 25,520 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/AALA201906129010

## Discrepancy

AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS DURING PS CHECK, EMERG LT/EPSU (13WL) AFT L FAILED OPS TEST. REPLACED BATTERY 13WL IAW AMM 33-51-38, NO HELP. REPLACED EPSU 13WL STILL NO HELP IAW AMM 33-51-38. DETERMINED THE CAUSE TO THE L4 SLIDE. REMOVED AND REPLACED THE L4 SLIDE IAW CARD 26L00025010. OPS CHECK GOOD.

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