# SDR 2DYA202603230006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2026
- Submitted: March 30, 2026
- Operation: Air carrier
- Aircraft: [N771KW](https://openairdocs.org/aircraft/N771KW), registered now
- Make and model: Boeing 777212
- Aircraft serial: 28530
- Aircraft time: 55,143 hours, 13,380 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, 30 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2DYA202603230006

## Discrepancy

DURING POST FLT CHECK 4 OVERHEAD EMERGENCY AISLE LIGHTS DID NOT TEST. APPLIED MEL 33-51-01-CAT "C" EXP.2-APR-26 DMI# 771-26-0052. 23-APR-26 LP 43474. DURING TROUBLE SHOOTING FOUND CANNON PLUG LOOSE AT BATTERY. RE-SECURED CANNON PLUG. OPS CHECKED GOOD. 28-MAR-26 LP 43484.-END-

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