Service difficulty report · Engine · Boeing 777222

Difficulty date
September 11, 2026
Submitted
September 15, 2026
Operation
Air carrier
Aircraft
N782UA
Make and model
Boeing 777222
Aircraft serial
26948
Aircraft time
118,768 hours, 15,524 cycles
Engine
Pwa PW4090
Part
Engine
Condition
Overtemp
Location
Zone 400
Stage of operation
CL
How discovered
O
Nature of condition
M, J
Precautionary procedure
A

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

What was found

MAX TO R ENG OVRTMP - PERFORMED TROUBLE SHOOTING REF FIM 71-05 TASK 833. PERFORMED EGT OVERTEMPERATURE INSP REF AMM 72-00-00-290-828-N02H(1) AND H(2) NIL DEFECT FOUND.PERFORMED ENGINE POWER RUN TEST NO.9 -POWER ASSURANCE TEST. EGT WITHIN AMM LIMIT . THE ENGINE OVER TEMP REACH TO677 FOR 26.6 S WHICH IS IN ZONE A