# SDR CALA2022050401135

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2022
- Submitted: May 4, 2022
- Operation: Air carrier
- Aircraft: [N57016](https://openairdocs.org/aircraft/N57016), registered now
- Make and model: Boeing 777224
- Aircraft serial: 28679
- Aircraft time: 102,795 hours, 10,379 cycles
- System (JASC): [2500 · Cabin Equipment/Furnishings](https://openairdocs.org/jasc/2500)
- Part: None
- Part number: NA
- Part serial: NA
- Condition: Failed
- Location: Door L4
- 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/CALA2022050401135

## Discrepancy

SUPPORT TASK: DR L4 EMER PWR SUPPLY (M33407) BATT FUNCTIONAL FAI L TRANSFER REF HX NON-ROUTINE WO.764220 AND ORIGINATED BY V92059 1 DR L4 EMER PWR SUPPLY (M33407) BATTERY REPLACED & TEST OKAY IAW AMM 33-51-06 WORK ACCOMPLISHED BY MECHANIC V920591 INSPECTED BY V920585 INSPECTED BY HX161779, APPROVED.

---
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.