# SDR CALA2025071406518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2025
- Submitted: July 14, 2025
- Operation: Air carrier
- Aircraft: [N77296](https://openairdocs.org/aircraft/N77296), registered now
- Make and model: Boeing 737824
- Aircraft serial: 34002
- Aircraft time: 57,702 hours, 21,183 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- 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/CALA2025071406518

## Discrepancy

L1 DOOR EXTERIOR SLIDE LIGHT INOP. EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK  {B737-33-3-0235} - EVALUATED AND FOUND L273 DOME LIGHT, L1086 EXIT LOCATOR SIGN, AN D L1067 OVERDOOR EXIT SIGN ALSO INOP. SUSPECT BATTERY AND CHARGE R M1675 FAULTY. REF IFM 33-51-06-04 & WDM 33-51-12-4.  REMOVED AND REPLACED L1 DOOR EMERGENCY POWER SUPPLY AND BATTERY PACK REPLACEMENT PER AMM 33-51-06.  UNABLE TO OPS CHK DUE TO OTHER ONGOING MX.  OPS CHECK REQUIRED.   OPS CHECKED L1 EXTERIOR EMERGENCY LIGHT PER AMM 33-51-06. OPS CHECK GOOD.

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