Service difficulty report · Crease Beam · Boeing 7572B7

Difficulty date
March 3, 2008
Submitted
March 4, 2008
Operation
Air carrier
Aircraft
N903FD
Make and model
Boeing 7572B7
Aircraft serial
27124
Aircraft time
47,097 hours, 19,245 cycles
Part
Crease Beam
Part number
146N561015
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

MAIN CARGO DECK FLOOR, CREASE BEAM WEB CORRODED AT STA 1360, RBL 60, WL 208. REMOVED CORROSION IAW SRM 51-10-02, L= 2.5, W= 2.5, D= 0.031, ORIGINAL MATERIAL THICKNESS 0.040. FOUND TO BE OUT OF SRM 53-60-13, FIG 101, DETAIL III LIMITS. REMOVED WEB IAW SRM 51-40-02. FABRICATED NEW REPAIR WEB ON MAE TRAVELER NR T8/722696, FROM 7075-0 .040C, HEAT TREATED TO T6. LOCATED AND DRILLED WEB IAW SRM 51-40-05. TREATED AND PRIMED WEB IAW SRM 51-20-01. INSTALLED REPAIR WEB IAW SRM 51-40-02. THIS IS A CATEGORY "A" MAJOR REPAIR.

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