Service difficulty report · Floor Support · Boeing 7572B7

Difficulty date
February 29, 2008
Submitted
March 3, 2008
Operation
Air carrier
Aircraft
N903FD
Make and model
Boeing 7572B7
Aircraft serial
27124
Aircraft time
47,097 hours, 19,245 cycles
Part
Floor Support
Part number
143N55225
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
9
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

FLOOR SUPPORT FROM STATION 720 TO 740, LBL 60, WL208, HAS CORROSION. REMOVED CORROSION, FOUND TO BE OUT OF SRM 53-00-51, FIG 101, DETAIL III LIMITS, L= 8 INCH, W= 2 INCH, D= 0.15 INCH, ORIGINAL MATERIAL THICKNESS .056 INCH. FABRICATED NEW FLOOR SUPPORT ON MAE TRAVELER NR T7/713361, FROM 7075-0-.056 B, HEAT TREATED TO T6. REMOVED AND REPLACED FLOOR SUPPORT (PN: 143N5522-5) IAW SRM 51-40-02. THIS IS A CATEGORY "A" MAJOR REPAIR WITH NO FOLLOW UP ACTION REQUIRED.

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