# SDR CALA2026030614388

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2026
- Submitted: March 6, 2026
- Operation: Air carrier
- Aircraft: [N73259](https://openairdocs.org/aircraft/N73259), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30803
- Aircraft time: 71,586 hours, 26,470 cycles
- 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/CALA2026030614388

## Discrepancy

EMERGENCY LIGHTS, BATTERY PACK M1695 FAILED A CAPACITY CHECK.  TEST SWITCH ON POWER SUPPLY INOPERATIVE.   REPLACED AND OPS CHKD GOOD CHARGER ASSY ON POWER SUPPLY M1695 IAW AMM 33-51-06-960-806.  REINSTALLED DADO PANEL FOR M1695 POWER SUPPLY ACCESS, IAW AMM 21-23-03-400-802.  CAPACITY CHECK FOR M1695 GOOD, IAW AMM 33-51-06-200-801. DEEP CYCLED EMERGENCY LIGHTS BATTERY PACKS AFTER CAPACITY CHECK, IAW AMM 33-51-06-600-802.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
