SDR UPS00433986

Service difficulty report · Frame · Boeing 747121

Difficulty date: July 13, 2000
Submitted: October 13, 2000
Operation: Air carrier
Aircraft: N691UP
Make and model: Boeing 747121
Aircraft serial: 19641
Aircraft time: 95,273 hours, 22,812 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Part number: 144U053327328
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, PLEASE REMOVE FASTENERS AS REQUIRED FOR NDT INSPECTION PER EO 5310- 12070 APPENDIX C AND D. DURING INSPECTION OF 1265 FRAME, BOTH FRAMES WERE CRACKED. FASTENERS REMOVED AS PER EO 5310-12070 APPENDIX C AND D. REPAIRS CARRIED OUT IAW EO B747-5310-12070 AND EO B747-5310-13330-A. FASTENERS REMOVED REPLACED DURING REPAIR. FRAME WEBS AND INNER CHORDS WERE REPAIRED PER DRAWING 144U0053 WITH EXCEPTION FREIGHTER TYPE INTERCOSTAL WAS INSTALLED FAA 8110 ISSUED.