Service difficulty report · Wire Harness · Boeing 737824

Difficulty date
July 29, 2017
Submitted
July 30, 2017
Operation
Air carrier
Aircraft
N87512
Make and model
Boeing 737824
Aircraft serial
33458
Aircraft time
31,438 hours, 10,947 cycles
Part
Wire Harness
Part number
3250254020
Condition
Faulty
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

ENGINE OVERTEMPERATURE (EXCEPT STARTING) EGT OVER AMBER BAND LIMIT, NO SURGE/STALL ENGINE 2 ON DEPARTURE EGT WENT TO 950 RED BOX FOR 10 SECS. TROUBLESHOT PER FIM 77-21-00-810-801-FOO. NR 2 ENGINE TOP RIGHT EGT SIGNAL OUT OF RANGE. REMOVED AND REPLACED NR 2 ENGINE TOP RIGHT THERMOCOUPLE PROBE PER AMM 77-21-01-400-801-FOO. TROUBLE SHOT PER FIM 77-21-00-810-803-FOO. BOTTOM LEFT EGT SIGNAL OUT OF RANGE. REMOVED AND REPLACED NR 2 ENGINE BOTTOM LEFT THERMOCOUPLE PROBE PER AMM 77-21-01-400-801-FOO. HARNESS FAULTY. REMOVED AND REPLACED NR 2 ENGINE CORE HARNESS CJ10 PER AMM 73-21-06 SUBTASK 73-21-06-420-008-FOO. ALL OPS CKS GOOD.