Service difficulty report · Fire Detector · Boeing 7378H4

Difficulty date
May 16, 2020
Submitted
May 18, 2020
Operation
Air carrier
Aircraft
N8301J
Make and model
Boeing 7378H4
Aircraft serial
36980
Aircraft time
27,785 hours, 12,009 cycles
Part
Fire Detector
Part number
90201601
Part serial
9918
Condition
Malfunctioned
Location
Nr 2 Engine
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.

What was found

#2 ENG OVERHEAT ILLUMINATED ON CLIMB AT 17K FEET. INTERMITTENT FIRE WARNING BELL. COULD NOT VERIFY WHICH ENGINE OF POSSIBLE FIRE WARNING. LIGHT WENT OUT AT MID LEVEL POWER RANGE. / ACCOMPLISHED POWER ASSURANCE RUN PER AMM 71-00-00 TEST 5; UNABLE TO DUPLICATE #2 ENGINE OVERHEAT OR FIRE WARNING. ACCOMPLISHED FOM 26-10 TASK 803; #2 LOWER FAN DETECTOR INTERMITTENT; R/R'D LOWER FAN FIRE DETECTOR (M1758) PER AMM 26-11-01; SYSTEM CHECKS NORMAL EV #E002785; ISSUE #2900406POS 2 P/N OFF/ON 902016-01 S/N OFF 9918 S/N ON 10284

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