# SDR UIEA2023101300913

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2023
- Submitted: October 13, 2023
- Operation: Air carrier
- Aircraft: [N451PA](https://openairdocs.org/aircraft/N451PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30809
- Aircraft time: 94,440 hours, 15,909 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD20131A
- Part serial: 128587
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2023101300913

## Discrepancy

FOUND ALL EMERGENCY LIGHT BATTYER ASSY FUNCTION FAIL. TT23 EACH(<P>1) IAW AMM 33-51-04-902-001-001 REV 108 REPLACED ALL EMERGENCY LIGHT BATTERY ASSY, CONDITION CHECK NORMAL. 2) IAW AMM 33-51-04-902-001-001 REV 108 PERFORMED INSTALLATION TEST OF ALL EMERGENCY LIGHT BATTERY. THE RESULT WAS SATISFACTORY</P>)

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