SDR UPS04441899

Service difficulty report · Fitting · Boeing 747123

Difficulty date: January 25, 2004
Submitted: February 16, 2004
Operation: Air carrier
Aircraft: N672UP
Make and model: Boeing 747123
Aircraft serial: 20324
Aircraft time: 70,871 hours, 20,783 cycles
System (JASC): 5340 · Fuselage Main, Attach Fittings
Part: Fitting
Condition: Cracked
Location: Fuselage
Stage of operation: IN
How discovered: V
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 BS 1241 RT CANTED PRESSURE DECK FITTING AFT HOLE FOUND CRACK APPROX 0.030 INCH RUNNING DOWN. BS 1241 RT CANTED P/D FITTING AFT BOLT HOLE REPAIRED PER RS R53-41-35107 & ENG'R FILE 747-53-20170, REPAIR IS CONSIDERED A TIME-LIMITED REPAIR 2 YEARS/1500 FLT CYCLES WHICHEVER COMES FIRST, AT WHICH TIME CANTED FITTING SHOULD BE REPLACED. SPLICE STRAP SHOULD BE REPLACED WITHIN 2 YEARS OF CRACK DISCOVERY, DUE TO CRACK WAS DISCOVERY DURING PRESENT MAINTENANCE.