SDR F3LA200400031

Service difficulty report · Floorbeam · Boeing 7373S1

Difficulty date: March 8, 2004
Submitted: March 9, 2004
Operation: Air carrier
Aircraft: N311FL
Make and model: Boeing 7373S1
Aircraft serial: 24856
Aircraft time: 40,600 hours, 24,532 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

DURING C-7 CHECK, INSPECTION REPORTED AFT CABIN FLOORBEAM AT STA 986 CORRODED. CORROSION ON FLOORBEAM TOP FLANGE FOUND TO BE OUT OF LIMITS PER SRM 53-60-31. REMOVED FLOORBEAM UPPER FLANGE, FABRICATED REPAIR T-CAP, ALODINED, PRIMED, PAINTED AND INSTALLED REPAIR PER SRM 51-40-02 AND EA B3-53R-10331.

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