Service difficulty report · Stringer · Boeing 747422

Difficulty date
July 20, 2011
Submitted
July 28, 2011
Operation
Air carrier
Aircraft
N173UA
Make and model
Boeing 747422
Aircraft serial
24380
Aircraft time
83,194 hours, 9,436 cycles
Engine
Pwa PW4056
Part
Stringer
Condition
Corroded
Location
Fuselage
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

FOUND CORROSION IN STR 51L APPROX STA 1800 TO STA 1820. MAJOR REPAIR ACCOMPLISHED: REPLACED STR 51L FROM STA 1740 TO 1960 REF SFOOV WRITE UP E9664H.