What was found
DURING T/S OF FIRE DETECTION , FOUND DETECTOR #4 WIRE BROKEN ON MW0326. GROUNDED - YES. REMOVED AND REPLACED CORE FIRE DETECTION HARNESS MW0326, REF B737-800 AMM 26-11-02. GROUND VERIFICATION TESTS OK FOR #1 ENGINE LOOP "B".
- Difficulty date
- April 28, 2021
- Submitted
- April 29, 2021
- Operation
- Air carrier
- Aircraft
- N560AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35179
- Aircraft time
- 54,086 hours, 16,166 cycles
- System (JASC)
- 2697 · Fire Protection System Wiring
- Part
- Wire
- Part number
- 3250276060
- Condition
- Broken
- Location
- Fire Detector
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.