What was found
NR 1 ENG FIRE DETECTOR LOOP "B" FLUCTUATED AND FAULT LIGHT CAME ON DURING CLIMB. REPAIRED CHAFED WIRE JUST AFT OF LWR FWD LOOP IAW BSWP MM 20-10-13. SYSTEM OPS CHECKS GOOD IAW B747 AMM 26-11-00 PG 504.
- Difficulty date
- December 4, 2007
- Submitted
- December 31, 2007
- Operation
- Air carrier
- Aircraft
- N713CK
- Make and model
- Boeing 7472B4B
- Aircraft serial
- 21099
- Aircraft time
- 69,497 hours, 18,229 cycles
- System (JASC)
- 2697 · Fire Protection System Wiring
- Part
- Wire
- Condition
- Chafed
- Location
- Fire Detector
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.