# SDR 2DYA202603150006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2026
- Submitted: March 27, 2026
- Operation: Air carrier
- Aircraft: [N771KW](https://openairdocs.org/aircraft/N771KW), registered now
- Make and model: Boeing 777212
- Aircraft serial: 28530
- Aircraft time: 55,146 hours, 13,381 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ABS20131A
- Condition: Inoperative
- Location: Zone 200
- Part time: 250 hours, 300 cycles
- 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/2DYA202603150006

## Discrepancy

FME  REPORTED EMERGENCY OVER HEAD LIGHTS BETWEEN ROW 20-30 INOP  ON L SIDE. XFERRED TO MEL 33-51-01 CAT "C" EXP. 2-APR-26 DMI# 771- 26-0052..23 MAR-26 LP 43474.T/S ON GOING.

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