SDR USAA2010061791151

Service difficulty report · Floorbeam · Boeing 7373B7

Difficulty date: June 11, 2010
Submitted: June 17, 2010
Operation: Air carrier
Aircraft: N531AU
Make and model: Boeing 7373B7
Aircraft serial: 24478
Aircraft time: 61,811 hours, 38,435 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
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 - LEVEL 2 EXFOLIATION CORROSION ON FLOORBEAM UPPER T-CHORD AT BS 344, WL 208.1, BETWEEN LBL 20 AND RBL 20. REPLACED FLOORBEAM UPPER T-CHORD AT BS 344, WL 208.1, BETWEEN LBL 20 AND RBL 20 IAW B737 SRM 53-10-51 FIG 101, 51-20-01 AND 51-40-02.

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