# SDR CALA2022020700324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2022
- Submitted: February 7, 2022
- Operation: Air carrier
- Aircraft: [N36472](https://openairdocs.org/aircraft/N36472), registered now
- Make and model: Boeing 737900
- Aircraft serial: 31653
- Aircraft time: 28,200 hours, 9,858 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: D71701100
- Part serial: 221618
- Condition: Inoperative
- Location: M1673
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022020700324

## Discrepancy

EMERGENCY LIGHTING BATTERY M1673 FAILED OP''S CHECK (REF. AAR NR 99921651).

---
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.