SDR CALA2012100400642

Service difficulty report · Frame · Boeing 737724

Difficulty date: October 4, 2012
Submitted: October 4, 2012
Operation: Air carrier
Aircraft: N24715
Make and model: Boeing 737724
Aircraft serial: 28786
Aircraft time: 46,502 hours, 15,707 cycles
Engine: Ge CFM567B24
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Part number: 146A11311
Condition: Cracked
Location: Bs 747
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

FRAME BS 747, BETWEEN STRINGER 8L AND 9L IS CRACKED AT AIR CONDITIONING OUTLET EXTRUSION SUPPORT BRACKET INBD ATTACH FASTENER. CRACK NOTED DURING ACCOMPLISHMENT OF STEP 4 OF EA 5310-04716, REV C, MFEC REPAIRED IAW EA 5310-04716, REV C, OP1.