# SDR CALA2021042800558

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2021
- Submitted: April 28, 2021
- Operation: Air carrier
- Aircraft: [N77019](https://openairdocs.org/aircraft/N77019), registered now
- Make and model: Boeing 777224
- Aircraft serial: 35547
- Aircraft time: 68,379 hours, 6,264 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 198745
- Condition: No Test
- 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/CALA2021042800558

## Discrepancy

PERFORME DEEP CYCLE BATTERY PACK CAPACITY CHECK FOUND BATTERY M33409 AT R4 DOOR POOR CAPACITY,REF HAECO NON-ROUTINE NO. 9434151.

---
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.