SDR USAA2009010590021

Service difficulty report · Floorbeam · Boeing 7374B7

Difficulty date: December 23, 2008
Submitted: January 6, 2009
Operation: Air carrier
Aircraft: N438US
Make and model: Boeing 7374B7
Aircraft serial: 24560
Aircraft time: 50,701 hours, 34,140 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 6546811
Condition: Corroded
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

CLT Q5 MAJOR REPAIR NR 03C10853057/002 LEVEL 2 INTERGRANULAR CORROSION ON FLOORBEAM AT BS986.5, LBL11.5 TO LBL26.5. REPLACED FLOORBEAM AT BS986.5, LBL11.5 TO LBL26.5 IAW B737 SRM 51-40-02, 53-60-01 REV A & US AIRWAYS TYPICAL REPAIR NR 53-60-01.

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