# SDR U2RA2026040100004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2026
- Submitted: April 1, 2026
- Operation: Air carrier
- Aircraft: [N702CA](https://openairdocs.org/aircraft/N702CA), registered now
- Make and model: Boeing 747412
- Aircraft serial: 27217
- Aircraft time: 95,599 hours, 14,889 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: BPS73
- Part serial: 50867
- Condition: Inoperative
- Location: Zone 200
- 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/U2RA2026040100004

## Discrepancy

UPPER DECK CEILING LIGHT ASSY INOPERATIVE.  REPLACED THE LIGHT ASSY AND OPS CHECKED IAW AMM 33-28-05,  FOUND ABNORMAL.  REPLACED THE CEILING BATTERY ASSY AND OPS CHECKED IAW AMM 33-51-04 FOUND NORMAL.

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