# SDR 2007UALA04965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2007
- Submitted: December 6, 2007
- Operation: Air carrier
- Aircraft: [N105UA](https://openairdocs.org/aircraft/N105UA), registered now
- Make and model: Boeing 747451
- Aircraft serial: 26473
- Aircraft time: 55,175 hours, 6,697 cycles
- Engine: Pwa PW4056
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Wire
- Part number: W3506503506
- Condition: Failed
- Location: Nr 3 Fire Loop
- 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/2007UALA04965

## Discrepancy

F-C REPORTED FIRE LOOP A 3 ENG.  REPLACED WIRES W3506-503 AND 506 REF SWP 20-30-11, CHECKED ROUTING OF WIRES ON AC 8174 ENG 3-4, AC 8105 ENG NR 3, WIRES ROUTED DIFFERENTLY, REROUTED REPLACED WITH CORRECT CLAMPS. ACCOMP TEST REF MM26-11-00, OPS CHECK PASSED.

---
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.