# SDR UALA2010101903875

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2010
- Submitted: November 12, 2010
- Operation: Air carrier
- Aircraft: [N223UA](https://openairdocs.org/aircraft/N223UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30224
- Aircraft time: 38,858 hours, 4,769 cycles
- Engine: Pwa PW40903
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 1701768
- Part serial: 348
- Condition: Faulty
- Location: Left
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010101903875

## Discrepancy

IMMEDIATELY AFTER TOUCHDOWN, ELEC BACKUP SYS EICAS MESSAGE. ABLE TO UNLATCH AND CLEAR STATUS MESSAGE, HOWEVER DUE TO LONG HISTORY DF PER MEL 2425A AS PRECAUTION. PER FIM 24-25 TSK 802, AFTER BU CONVERTER AND RT BUG REPLACEMENT, NEXT STEP TO REPLACE LEFT BUG, PART IS AT GRU. REPLACED NR 1 ENG BACKUP GENERATOR.

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.