Service difficulty report · Fmu · Boeing 777222

Difficulty date
July 4, 2009
Submitted
July 8, 2009
Operation
Air carrier
Aircraft
N781UA
Make and model
Boeing 777222
Aircraft serial
26945
Aircraft time
52,514 hours, 9,574 cycles
Engine
Pwa PW4077
Part
Fmu
Part number
8088001
Part serial
62
Condition
Faulty
Location
Nr 2 Engine
Stage of operation
IN
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

DURING START OF NR 2 ENG IN AUTO START, START SWITCH CUT OUT AT 42 PERCENT ENG CONTINUED TO CLIMB AND THEN AUTO SHUT DOWN, TRIED A SECOND TIME IN AUTO START AND EGT CLIMBED TO 510 AND ENG SHUT DOWN AGAIN. SHUT AUTO START OFF AND STARTED ENG AGAIN AND ENG STARTED WITH EGT AT 567, NR 1 ENG EGT 436. REPLACED FUEL METERING UNIT. RAN ENG AND FOUND OKAY.