SDR UPS05445088

Service difficulty report · Skin · Boeing 747121

Difficulty date: July 22, 2005
Submitted: August 10, 2005
Operation: Air carrier
Aircraft: N683UP
Make and model: Boeing 747121
Aircraft serial: 20353
Aircraft time: 87,225 hours, 21,374 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Corroded
Location: Rt Wing
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 RIGHT WING UPPER SURFACE RABBIT AREA FOUND BULGED BETWEEN WS 1375 AND WS 1395 (AFT NR 24 VC FLAP). CORROSION BLEND OUT 0.127" X 1.625" X 6" EXCEED SRM 57-30-01 FIG 1 LIMITS. RIGHT WING UPPER SURFACE RABBIT AREA REPAIRED AFTER CORROSION BLENDED OUT AS PER HX RS R57-25-35358 & UPS ENGINEERING FILE 747-57-20079.