Service difficulty report · Frame · Boeing 747121

Difficulty date
September 5, 2003
Submitted
October 3, 2003
Operation
Air carrier
Aircraft
N682UP
Make and model
Boeing 747121
Aircraft serial
20349
Aircraft time
98,649 hours, 25,117 cycles
Part
Frame
Condition
Corroded
Location
Mlg Ww Blkhd
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE: C, LT WLG WHEEL WELL STA 1241 BULKHEAD UPPER SECTION AREA CORROSION REVEALED AT LBL 65, 70, 74 AND 90. UPPER SECTION REPAIRED AS PER RS 53-48-35072 REFER CWS FOR WORK DETAIL AND ENGINEERING FILE NO : 747-53-20158 DUE TO BLEND DEPTH 0.090 INCH X 2 INCHES X 3 INCHES AREA EXCEEDS SRM 53-10-01 FIG 1 LIMITATION.