What was found
NR 2 ENGINE FIRE DETECTION SYSTEM LOOP 2 FAILED. FOUND CHAFED WIRE HARNESS BETWEEN LWR FWD AND LWR AFT LOOPS. REPLACED FIRE LOOP HARNESS AND FIRE TESTED OK.
- Difficulty date
- January 10, 2013
- Submitted
- January 18, 2013
- Operation
- Air carrier
- Aircraft
- N793UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26946
- Aircraft time
- 68,098 hours, 9,742 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2697 · Fire Protection System Wiring
- Part
- Wire Harness
- Condition
- Chafed
- Location
- Nr 2 Fire Loop
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.