# SDR GTIA2025050138890

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2025
- Submitted: May 1, 2025
- Operation: Air carrier
- Aircraft: [N977NK](https://openairdocs.org/aircraft/N977NK), registered now
- Make and model: Airbus A320-271N
- Registry model: [Airbus A320-271N](https://openairdocs.org/model/airbus-a320-271n) (OpenAirDocs)
- Aircraft serial: 11355
- Aircraft time: 7,837 hours, 3,387 cycles
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: Epsu
- Part number: 32146210
- Part serial: 181750
- Condition: Inoperative
- Location: Zone 800
- Part time: 7,837 hours, 3,387 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/GTIA2025050138890

## Discrepancy

DURING SVC CHECK PERFORMED EPSU SYS TEST. DURING THE TEST CLASS 1 EXTERIOR LT 2/ EPSU (10WL) FWD L FAULT WAS FOUND. TROUBLE SHOOTING REQ-PERFORMED THE OPERATIONAL TEST OF THE EMERGRNCY LIGHTS WITHOUT THE CIDS IAW AMM 33-51-00. EXTERIOR LIGHTS FAULT LED CAME ON. THEN PROCEEDED TO DO A CHECK OF WIRING FROM 10 WL TO 2871VC AND 2870VC IAW TSM 25-62-00-810-811-A. NO DEFECTS NOTED. DETERMINED NEITHER THE R/H OR L/H SLIDE WAS THE ISSUE. R+R EPSU (10WL) IAW AMM 33-51-38. THIS CLEARED THE FAULT. A/C READY FOR SVC

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