SDR ASAA2020022513238

Service difficulty report · Fire Detector · Boeing 737890

Difficulty date: February 21, 2020
Submitted: February 26, 2020
Operation: Air carrier
Aircraft: N592AS
Make and model: Boeing 737890
Aircraft serial: 35190
Aircraft time: 46,249 hours, 13,831 cycles
System (JASC): 2612 · Fire Detection
Part: Fire Detector
Condition: Unknown
Location: Nr 1 Engine
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

#1 ENG "B" LOOP FIRE DETECTION INTERMITTENT. GROUNDED - YES. ACCOMPLISHED B737-800 AMM 26-11-00 ENGINE FIRE DETECTION OF ENG #1 REVERSED MAINT CONFIG PROCEDURE PLACING OVHT DET SWITCH BACK TO NORMAL POSITION NO FAULTS FOUND GRD VERIFICATION SUCCESSFUL.