SDR UIEA2011061700337

Service difficulty report · Frame · Boeing 747243B

Difficulty date: June 17, 2011
Submitted: July 5, 2011
Operation: Air carrier
Aircraft: N517MC
Make and model: Boeing 747243B
Aircraft serial: 23300
Aircraft time: 91,897 hours, 15,722 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Bs 800 S16-18l
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 THE ACCOMPLISHMENT OF EO 4753A883, SB 747-53A2451, AD 2007-16-08. THE FWD FRAME FWD INNER CHORD AND FWD FRAME AFT INNER CHORD WAS FOUND CRACKED AT FOUR FASTENER HOLES. STRAP AND FILLERS WERE FOUND INSTALLED BETWEEN S-16L AND S-20L AND AN EXISTING SPLICE WAS FOUND INSTALLED ABOVE S-16L. CRACKS REPAIRED BY TRIMMING THE DAMAGE AND INSTALLING FILLERS, DOUBLERS AND TRIPLERS IAW MFG INSTRUCTIONS. SEE RS R53-20-37134, REV A.