# SDR CALA2024062801926

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2024
- Submitted: June 28, 2024
- Operation: Air carrier
- Aircraft: [N76010](https://openairdocs.org/aircraft/N76010), registered now
- Make and model: Boeing 777224
- Aircraft serial: 29480
- Aircraft time: 116,871 hours, 12,129 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Fuse
- Part number: B21506
- Condition: Failed
- Location: Emergency Lights
- 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/CALA2024062801926

## Discrepancy

R4 DOOR AREA EMERGENCY LIGHT, EXIT IDENTIFIER, EMERGENCY CROSS A ISLE AREA LIGHT AND EXIT SIGN MALFUNCTION,   PERFORMED WIRING C WDM 33-51-34 REV.78, AMM 33-51-06-960-801 REV.101. CHECK AND FOUND M33408 EMERGENCY LIGHT BATTERY PACK FUSE MALFUNCT ION, REPLACED THE FUSE AND M33408 EMERGENCY LIGHT BATTERY PACK T EST FOUND NORMAL AND RELEVANT EMERGENCY LIGHT ALL NORMAL.

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