Service difficulty report · Floorbeam · Boeing 7572B7

Difficulty date
July 8, 2010
Submitted
July 8, 2010
Operation
Air carrier
Aircraft
N902FD
Make and model
Boeing 7572B7
Aircraft serial
27123
Aircraft time
53,534 hours, 22,034 cycles
Engine
Rroyce RB211535E4
Part
Floorbeam
Part number
143N5016
Condition
Corroded
Location
Bs 740
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

CABIN FLOORBEAM PANEL HOLES AT STA 740 BETWEEN LBL-24.75 AND LBL-58-22 HAS CORROSION. REMOVED CORROSION IAW SRM 51-10-02. BLEND OUT DIM L=8.0 W=2.0 D=.016. ORIG MATERIAL .125 AFTER REWORK .109 FOUND OUT OF LIMITS IAW SRM 53-00-51 FIG 101 DETAIL III. REPAIRED FLOORBEAM UPPER TEE. IAW SRM 53-00-01 FIG 201 REPAIR 1. CLASSIFIED CATEGORY "A" MAJOR REPAIR.

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