# SDR IPXA2022032780539

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2022
- Submitted: March 28, 2022
- Operation: Air carrier
- Aircraft: [N578UP](https://openairdocs.org/aircraft/N578UP), registered now
- Make and model: Boeing 747-44AF
- Registry model: [Boeing 747-44AF](https://openairdocs.org/model/boeing-747-44af) (OpenAirDocs)
- Aircraft serial: 27154
- Aircraft time: 114,200 hours, 19,128 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20131A
- Part serial: 64685
- Condition: Inoperative
- Location: Upper Deck
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2022032780539

## Discrepancy

INSPECTION TYPE:C3FOUND THE L1 DOOR EMERGENCY LIGHT INOPI.A.W AMM 33-51-04-902-001-001 REV.103.02 REPLACED THE L1 DOOR EMERGENCY LIGHT BATTERY ASSY (M5170) AND PERFORMED EMERGENCY LIGHT OPERATIONAL TEST , RESULT WAS SATISFACTORY

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