SDR DALA1152646309

Service difficulty report · Frame · Boeing 747451

Difficulty date: September 9, 2011
Submitted: September 12, 2011
Operation: Air carrier
Aircraft: N669US
Make and model: Boeing 747451
Aircraft serial: 24224
Aircraft time: 90,864 hours, 11,444 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

DURING LCK, A CRACK WAS FOUND ON THE STA Y00 LBL 45 FRAME IN THE FWD CARGO COMPARTMENT. ER/A 495580-14 SECT I WAS ACCOMP. FOLLOW ON ACTION IS REQ FOR THIRD STAGE APPROVAL. DFRD 233849 STA MSP 09SEP11 ATA 5311 ENTR 233849 S ACCOMP ER/A 495580-14 SECT II BEFORE 20,000 A/C CYCLES. IF THIS LOG AND ER/A HAVE NOT BEEN REVISED BY 20,000 TOTAL A/C CYCLES, REMOVE A/C FROM REVENUE SERVICE. FOLLOW ON ACTION IS REQUIRED FOR STAGE III (DTA) APPROVAL FROM BOEING.