Service difficulty report · Wire Harness · Boeing 7377H4

Difficulty date
September 10, 2021
Submitted
September 14, 2021
Operation
Air carrier
Aircraft
N762SW
Make and model
Boeing 7377H4
Aircraft serial
27876
Aircraft time
73,557 hours, 43,451 cycles
Engine
Cfmint CFM567B242
Part
Wire Harness
Condition
Out Of Tolerance
Location
Nr 2 Egt
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

#2 ENGINE EGT EXCEEDANCE ON CLIMBOUT BETWEEN 5-10 SECONDS. ; / [01] #2 ENGINE EXCEEDED EGT 960 FOR 7 SEC ON TAKEOFF. FOUND TO BE IN AREA A PER M/M 71-00-00. PER POWER PLANT ENGINEERING FIRST OCCURRENCE OF EGT EXCEEDANCE AND SUSPECT FAULTY EGT INDICATION. FOUND FC 75-10832 T3 OUT OF RANGE AND FC 77-20872 T49.5 OUT OF RANGE. REMOVED AND REPLACED CJ10 HARNESS PER FIM 77-21-804 AND PERFORMED FIM 75-33-802. INSPECTED ENGINE PER 71-00-00 NO DEFECTS NOTED. RAN ENGINE WITH NO CURRENT EEC FAULTS.

More about the Boeing 737-7H4