# SDR UIEA2021080601735

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2021
- Submitted: August 6, 2021
- Operation: Air carrier
- Aircraft: [N475MC](https://openairdocs.org/aircraft/N475MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29252
- Aircraft time: 88,819 hours, 16,665 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ABS20121A
- Part serial: T2529469
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021080601735

## Discrepancy

FOUND THE EMERGENCY LIGHT BATTERY (M5168) FUNCTION NO GOOD, THE LIGHTS STAY ON LESS THAN 15 MINUTES(<P>REPLACED AND TEST EMERGENCY LIGHT BATTERY IAW AMM 33-51-04-902-001-001 REV 101. CONDITION CHECK NORMAL, TEST RESULT WAS SATISFACTORY</P>)

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