SDR UPS06446624

Service difficulty report · Frame · Boeing 747121

Difficulty date: March 10, 2006
Submitted: April 5, 2006
Operation: Air carrier
Aircraft: N681UP
Make and model: Boeing 747121
Aircraft serial: 19661
Aircraft time: 106,939 hours, 27,146 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Bs 340
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

RT BS 340 UPPER DECK FLOORBEAM AT FRAME CONNECTION FOUND 1 HOLE CRACK AT FRAME, CRACK LENGTH 1/16". UPPER DECK BS 340 FLOORBEAM ATTACHED FRAME REPAIRED AS PER HX RS# R53-12-35437 AT BETWEEN STR 10AR TO STR 13AR AREA UPON THE ACCUMULATION OF 10000 FLT CYC. PERFORM A DETAIL VISUAL INSP OF THE FWD AND AFT SIDES OF THE FRAME IN THE REPAIR AREA IS REQ THAT IS TO REPEAT EVERY 3000 CYC REF UPS EO NR B747-5310-24059-A.