SDR UPS06448104

Service difficulty report · Skin · Boeing 747121

Difficulty date: August 17, 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
System (JASC): 5714 · Wing, Center Box
Part: Skin
Condition: Corroded
Location: Bs 1195
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

BS 1195 LBL71-73 WING CTR SECTION UPPER SURFACE FOUND CORRODED. CORROSION BLEND OUT 0.037" BY 3" BY 3" EXCEED SRM LIMIT. BS 1195 LBL71-73 WING CTR SECTION UPPER SURFACE CORRODED AREA REPAIRED AS PER RS R57-14-35576 AND UPS ENGINEERING FILE NUMBER 747-57-20099.