Service difficulty report · Floorbeam · Boeing 75723A

Difficulty date
October 26, 2009
Submitted
October 26, 2009
Operation
Air carrier
Aircraft
N921FD
Make and model
Boeing 75723A
Aircraft serial
24924
Aircraft time
68,004 hours, 21,149 cycles
Part
Floorbeam
Part number
141N51703
Condition
Corroded
Location
Bs 340
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 FLOORBEAM STA 340 LBL 32 TO 37 HAS AREA OF CORRODED OUT OF LIMITS. REMOVED CORROSION MCD STR STA 340 LBL 32-37 IAW SRM 51-10-02 CHECKED LIMITS. ORIG MAT THICKNESS = .032, AFTER REWORK MAT THICKNESS .018, MAT LOSS= .012 FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04. REMOVED FLOOR SUPPORT MCD STR STA 340 LBL 32-37 AND 2 EA, NUTPLATES IAW SRM 51-40-02 RECEIVED FLOOR SUPPORT PN 141N5170-3ON PO MAG--94727. LOCATED AND DRILLED FLOOR SUPPORT IAW SRM 51-40-05 INSTALLED 2 EA NUTPLATES, 2EA BRACKETS AND FLOOR SUPPORT MCD STA 340 LBL 32-37 IAW SRM 51-40-02.

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