SDR UPS07449489

Service difficulty report · Skin · Boeing 747121

Difficulty date: February 15, 2007
Submitted: March 16, 2007
Operation: Air carrier
Aircraft: N683UP
Make and model: Boeing 747121
Aircraft serial: 20353
Aircraft time: 90,184 hours, 22,066 cycles
System (JASC): 5714 · Wing, Center Box
Part: Skin
Condition: Corroded
Location: Bs 1210-1220
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 1210-1220 LBL 97 WING CTR SECTION TOP SURFACE FOUND CORROSION. CORROSION BLEND OUT 0.043 X .5 X 2 INCHES EXCEED SRM LIMIT. M/D BS 1210-1220 LBL 97 WING CTR SECTION TOP SKIN REPAIRED AS PER RS R57-14-35765 AND UPS EO B747-5730-15819.