- Difficulty date
- August 16, 2006
- Submitted
- October 2, 2006
- Operation
- Air carrier
- Aircraft
- N682UP
- Make and model
- Boeing 747121
- Aircraft serial
- 20349
- Aircraft time
- 104,700 hours, 26,436 cycles
- Part
- Skin
- Condition
- Corroded
- Location
- Bs 1168-1170
- 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 M/D BS 1168-1170 LBL31-33 WING CTR SECTION UPPER SURFACE FOUND CORRODED. CORROSION BLEND OUT 0.054" BY 3" BY 8" EXCEED SRM LIMIT. M/D BS 1168-1170 LBL31-33 WING CTR SECTION UPPER SURFACE CORRODED AREA REPAIRED AS PER RS R57-14-35594 FIG 2 AND UPS ENGINEERING FILE NUMBER 747-57-20100.