SDR UPS03440604

Service difficulty report · Skin · Boeing 747121

Difficulty date: April 13, 2003
Submitted: April 30, 2003
Operation: Air carrier
Aircraft: N681UP
Make and model: Boeing 747121
Aircraft serial: 19661
Aircraft time: 100,611 hours, 25,820 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Cracked
Location: Fuselage
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, AFT CARGO DOOR CUTOUT FWD UPPER CORNER FOUND BEAR STRAP CRACK APPROX 3/16 INCHES LONG FROM EDGE. AFT CARGO DOOR CUTOUT FWD CUTOUT UPPER CORNER REPAIRED AS PER SRM 53-30-03 FIG 62 AND REFER NRC 6407 FOR WORK DETAIL. CAT B REPAIR REQUIRES REPEAT INSPECTION THRESHOLD AT 15,000 CYCLES AFTER REPAIR INSTALLATION AND REPEAT AT 3000 CYCLES INTERVAL PER SRM.