# SDR AALA201810089049

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2018
- Submitted: October 8, 2018
- Operation: Air carrier
- Aircraft: [N172US](https://openairdocs.org/aircraft/N172US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1472
- Aircraft time: 59,641 hours, 22,225 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 3644
- Condition: Inoperative
- Location: Cabin
- Part time: 59,645 hours, 22,224 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/AALA201810089049

## Discrepancy

AIRCRAFT WAS NOT GROUNDED. AFTER REPLACEMENT OF L4 SLIDE PER JOBCARD 26L00025010, STEP 7 OF JOB CARD WOULD NOT PASS TEST. MAINTENANCE REPLACED FORWARD LEFTHAND UNIT POWER SUPPLY PER AMM 33-51-38 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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