Service difficulty report · Floorbeam · Boeing 7572Y0

Difficulty date
June 15, 2010
Submitted
June 22, 2010
Operation
Air carrier
Aircraft
N930FD
Make and model
Boeing 7572Y0
Aircraft serial
25240
Aircraft time
57,415 hours, 17,967 cycles
Part
Floorbeam
Part number
BAC1518338
Condition
Misinstalled
Location
Bs 660
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

SECTION 43, SEAT TRACK AT RBL 58.22 BETWEEN STA 620, 640 AND 660 UNABLE TO LOCATE SEAT TRACK EXISTING FASTENER HOLES ON THE FLOORBEAM ARE NOT POSITIONED AS DEPICTED IN THE DWG 657N3321, SHEET 12, REV B. ON ACCESSING AREA, FOUND EXISTING GOUGES ON BS 660 FLOORBEAM WEB, RBL 58.22. REMOVED GOUGES IAW SRM 51-10-02; ORIG. MATL, .090", MATERIAL REMOVED: .040", REMAINING: .050", FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, FIG 101. R & R BS 660 FLOORBEAM, LBL 64 - RBL 64, IAW SRM 51-40-02. NEW FLOORBEAM WAS FABBED FROM BAC 1518-338, 7075-T6511, IAW DWG 143N5911. DISCREPANT CONDITION NO LONGER EXISTS. MAJOR REPAIR.

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