Service difficulty report · Fire Detector · Boeing 737824

Difficulty date
December 9, 2024
Submitted
December 12, 2024
Operation
Air carrier
Aircraft
N12218
Make and model
Boeing 737824
Aircraft serial
28778
Aircraft time
79,259 hours, 29,341 cycles
Part
Fire Detector
Part number
902864
Part serial
1120
Condition
Faulty
Location
Nr 2 Engine
Part time
73,751 hours, 28,336 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ENG 2 OVERHEAT LIGHT LIGHT IS ON ENG 2 OVRHT ILLUMINATED ON CLIMBOUT. WENT OUT AFTER LVL OFF CHEC KLIST THRUST REDUCTION UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. FOUND WIRE CHAFFED NEAR CONNECTOR. WIRE NOT DAMAGED. INSULATION WORN FOUND WIRE REPAIR NOT NECESSARY PER SWM 20-10-13 PG 13 DAMAGE SMALLER THAN 50% OF WIRE DIA. CLEANED WIRE AND REROUTED WPB U212253. ADD EMP:U212253 REF FIM 26-10 TASK 801 FAN UPPER DETECTOR FAULTS. REMOVED AND REPLACED #2 ENG FAN UPPER DETECTOR PER AMM 26-11-01/401. ALSO SMALL LEAK FOUND PNEUMATIC DUCT FLANGE ABOVE THE STARTER - SECURED AND TIGHTEND NO LEAK NOTED. #2 FIRE DETECTION SYSTEM ADD EMP:U212253 TEST NORMAL. PERFORMED HIGH POWER ENG RUN REF MM 71-00-00. NO ENG OVERHEAT DETECTION FAULTS. ENG OVERHEAT TEST OPS NORMAL