# SDR TWAA9722001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N93107
- Make and model: Boeing 747131
- Aircraft serial: 19673
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 28B263138
- Condition: Failed
- Location: Nr 3/4
- Stage of operation: CR
- Nature of condition: H, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9722001

## Discrepancy

SFO - DURING CRUISE, NR 3 AND 4 GENERATORS FAILED.  REMOVED AND REPLACED NR 3 AND 4 GENERATORS, MFG P/N 28B263-13A.  OPERATIONAL CHECKS AND ENGINE RUNS NORMAL.  (M)

---
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.