Service difficulty report · Harness · Boeing 737890

Difficulty date
May 20, 2022
Submitted
May 20, 2022
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
58,437 hours, 16,967 cycles
Engine
Cfmint CFM567B27
Part
Harness
Part number
3250254020
Condition
Faulty
Location
#2 Engine
Stage of operation
IN
How discovered
V
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

GE DIAGNOSTICS REPORTS THE #2 ENGINE EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED ON REPORT 06 WAS 982 DEGREES DURING TAKEOFF (FLIGHT PHASE 4.) PRI: AOG.ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. REF STEP 1. #2 EGT INDICATOR HAD RED BOX AROUND IT. PEAK: 983.0 RED:950.0 0:32.6 SECONDS. SEE ASA L/P 60351019. REF STEP 2. VISUAL INSPECTION OF #2 ENGINE INLET AND ENGINE EXHAUST C/W ON L/P 60268364 NO DEFECTS NOTED. LPT STAGE 1 BLADE BORESCOPE C/W ON L/P 60351024 AND BORESCOPE OF HPT BLADES C/W ON L/P 60351023. REF STEP 3. #2 EEC BITE LOGGED FAULT 77-20862 IN FAULT HISTORY LEGS 1-10. J10 AND CJ 10 HARNESSES REPLACED ON L/P 60268364. FINAL CORRECTIVE ACTIONS TO BE COMPLETED ON L/P 60351019 AND 60268364. THIS COMPLETES TSR.