Service difficulty report · Engine · Boeing 777222

Difficulty date
March 12, 2026
Submitted
March 18, 2026
Operation
Air carrier
Aircraft
N784UA
Make and model
Boeing 777222
Aircraft serial
26951
Aircraft time
115,313 hours, 14,888 cycles
Engine
Pwa PW4090
Engine time
86,627 hours, 11,157 cycles
Part
Engine
Condition
Abnormal
Location
Nr 1
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

LEFT ENGINE EGT EXCEEDANCE ON TAKE OFF. MAX EGT 700 CONFIRMED IAW AMM 72-00-00-290-828-N02, ENGINE EGT EXCEEDANCE TO 700C FALLS IN ZONE C PER FIGURE 603 SHEET 2. ZONE C EXCEEDANCE DIRECTS TO REMOVE ENGINE WITH NO BORESCOPE NEEDED. NR 1 ENG REMOVED FROM ACFT. LP XFERD TO LP 8240596.