Service difficulty report · Floor Support · Boeing 75723A

Difficulty date
November 3, 2009
Submitted
November 3, 2009
Operation
Air carrier
Aircraft
N921FD
Make and model
Boeing 75723A
Aircraft serial
24924
Aircraft time
68,004 hours, 21,149 cycles
Part
Floor Support
Part number
140N27491
Condition
Corroded
Location
Bs 1440-1500
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

AFT PIT FLOORBOARD SUPPORT UPPER SURFACE HAS CORROSION APPROX FROM STA 1440 TO STA 1500 AT LBL 4. REMOVED CORROSION IAW SRM 51-10-02. CHECKED LIMITS. ORIG MAT THICKNESS 0.063 AFTER REWORK 0.042. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-83. REMOVED FLOOR SUPPORT AND SPLICE IAW SRM 51-40-02. FABRICATED FLOOR SUPPORT. LOCATED AND DRILLED FLOOR SUPPORT IAW SRM 51-40-05. TREATED AND PRIMED FLOOR SUPPORT IAW SRM 51-20-01. INSTALLED NUTPLATES IAW SRM 51-40-02. INSTALLED FLOOR SUPPORT AND SPLICE IAW SRM 51-40-02. THIS IS A MINOR REPAIR.

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