# SDR CALA2026092919994

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 2026
- Submitted: September 30, 2026
- Operation: Air carrier
- Aircraft: [N78004](https://openairdocs.org/aircraft/N78004), registered now
- Make and model: Boeing 777224
- Aircraft serial: 27580
- Aircraft time: 127,063 hours, 13,183 cycles
- Engine: Ge GE9094B
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- 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/CALA2026092919994

## Discrepancy

EMERGENCY CELING AREA LIGHTS, FROM SEAT ROWS 1 LH TO 8 LH, DOES NOT COMES ON. REMOVED AND REPLACED M33424 POWER SUPPLY - BATTERY PACK, LOCATED AT DOOR 1 LH LOWERED CEILING PANEL, REF AMM 33-51-06-960-802. OPS CHECK GOOD.

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