What was found
DURING LL1 FOUND ENGINE 1 FIRE LOOP B SHOWS FAULT. GROUNDED-YES. CLEANED CONNECTORS OF FIRE DETECTION HARNESSES MW0325, MW0326 CHECKED ALL CONNECTIONS. ACCOMPLISHED GVI OF FIRE LOOPS OPERATIONS CHECK NORMAL, REF B737-900 AMM 26-11-00.
- Difficulty date
- January 19, 2021
- Submitted
- January 21, 2021
- Operation
- Air carrier
- Aircraft
- N409AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41733
- Aircraft time
- 29,189 hours, 9,441 cycles
- System (JASC)
- 2697 · Fire Protection System Wiring
- Part
- Connector
- Condition
- Dirty
- Location
- Fire Loop
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.