SDR FDEA201207192619

Service difficulty report · Floorbeam · Boeing 7572Y0

Difficulty date: July 19, 2012
Submitted: July 23, 2012
Operation: Air carrier
Aircraft: N961FD
Make and model: Boeing 7572Y0
Aircraft serial: 25268
Aircraft time: 51,232 hours, 23,707 cycles
Engine: Rroyce RB211535E4
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: BAC1505100880
Condition: Corroded
Location: Bs 377.7
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

MAIN CABIN SEC 41, AREA AT BS 377.7 FLOORBEAM CORRODED. BLENDED CORROSION IAW SRM 51-10-02. CHECKED LIMITS IAW SRM 53-00-51, FIG 101, DETAIL III, D=.029 W=.6 L=1.3 ORIGINAL MATERIAL THICKNESS, .150 AFTER BLEND .121 FOUND TO BE OUT OF LIMITS. REMOVED FLOORBEAM REPAIR IAW SRM 51-40-02. INSTALLED FLOORBEAM REPAIR IAW SRM 51-40-02, DWG 141N5112, AND SRM 53-00-51 REPAIR 3, STA 377, RBL 30 -LBL 62. MAJOR REPAIR.

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