SDR UPS01437081

Service difficulty report · Frame · Boeing 747121

Difficulty date: September 7, 2001
Submitted: October 19, 2001
Operation: Air carrier
Aircraft: N681UP
Make and model: Boeing 747121
Aircraft serial: 19661
Aircraft time: 97,510 hours, 25,124 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
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, APU COMPARTMENT INTERIOR FRAME FOUND CRACKED AT APPROX BS 2658 TO BS 2664 RBL 50 (JUST ABOVE RT DOOR FWD CORNER). STA BS 2658 TO BS 2664 RBL 50 FRAME REPAIRED AS PER SRM 51-40-03 FIG 1. HFEC CUTOUT AS PER NTM PART 6, 51-00-00 FIG 4 CRACK FREE BEYOND STOP HOLE.