# SDR IPXA2023041837422

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2023
- Submitted: April 21, 2023
- Operation: Air carrier
- Aircraft: [N579UP](https://openairdocs.org/aircraft/N579UP), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 26062
- Aircraft time: 114,278 hours, 19,279 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: 20131A
- Part serial: 37489
- Condition: Inoperative
- Location: Main Deck - Aft
- 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/IPXA2023041837422

## Discrepancy

FOUND THE UPPER DECK EMERGENCY SILL LIGHT INOP (M5170) (REPLACE) I.A.W AMM 33-51-04-902-001-001 REV.107.00 REPLACED BATTERY (M5170) AT UPPER DECK AND PERFORMED POWER SUPPLY TEST, THE RESULT WAS SATISFACTORY. IPC VERIFIED AND SERVICEABLE PARTS TAG NO.068400. ALL PAPERWORK C/W

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