Service difficulty report · Blade · Boeing 777222

Difficulty date
July 30, 2001
Submitted
December 5, 2001
Operation
Air carrier
Aircraft
N773UA
Make and model
Boeing 777222
Aircraft serial
26929
Aircraft time
24,552 hours, 5,744 cycles
Engine
Pwa PW4077
Engine time
18,684 hours, 3,689 cycles
Part
Blade
Part number
54L201
Condition
Fractured
Location
Engine
Part time
8,107 hours, 1,598 cycles
Stage of operation
TO
How discovered
O
Nature of condition
R, J
Precautionary procedure
E, C

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

What was found

APPROX 110 KTS LEFT ENG FAILURE WITH SEVERE DAMAGE. EGT 565, FF0, OIL PRESS 1. ENGINE SHUTDOWN, ABORTED T-O, BRAKE TEMP NORMAL, NORMAL STOP, NO OTHER INDICATIONS. RETURN TO BLOCKS. ENGINE WAS REMOVED DUE TO METAL IN TAILPIPE. FAILURE ORIGINATED AT HIGH PRESSURE TURBINE STAGE 1 BLADE FRACTURED JUST ABOVE THE PLATFORM. THERE WAS EVIDENCE OF STRESS CORROSION CRACKING. SB PW4G-112-72-240 AND -245 HAD NOT BEEN INCORPORATED.