# SDR CALA2024041001020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2024
- Submitted: April 10, 2024
- Operation: Air carrier
- Aircraft: [N37018](https://openairdocs.org/aircraft/N37018), registered now
- Make and model: Boeing 777224
- Aircraft serial: 31680
- Aircraft time: 102,963 hours, 10,471 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 285W0955102
- Part serial: D05818
- Condition: No Test
- Location: L1 Door
- Part time: 89,095 hours, 8,810 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/CALA2024041001020

## Discrepancy

DURING D1R EPAS ARM, THE EPAS BATTERY PACK GREENTEST LIGHT NO COME ON REF HAECO NR NO.9484014.  REPLACED EPAS 9 VOLT BACK UP BATTERY AND REPLACED EPAS BATTERY PACK, CONDITION CHECK NORMAL, CARRIED OUT EPAS BATTERY OPERATIONAL TEST, TEST NORMAL REF AMM 52-11-20-400-806/805 & AMM 52-11-20-700-803 REV.100.

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