Service difficulty report · Spar · Boeing 777222

Difficulty date
August 1, 2012
Submitted
August 10, 2012
Operation
Air carrier
Aircraft
N791UA
Make and model
Boeing 777222
Aircraft serial
26933
Aircraft time
65,095 hours, 9,443 cycles
Engine
Pwa PW40903
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Lt Wing
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

LEFT WING REAR SPAR WEB CORRODED AROUND FASTENERS BETWEEN IRSS 340 AND 350 WHERE FUEL BOOST PUMP IS INSTALLED. BLENDED OUT CORROSION. NO CRACKS FOUND BY HFEC. ACCOMPLISHED PERMANENT REPAIR PER ECRA 5720-02313 .