Service difficulty report · Floorbeam · Boeing 7572B7

Difficulty date
August 31, 2018
Submitted
September 5, 2018
Operation
Air carrier
Aircraft
N903FD
Make and model
Boeing 7572B7
Aircraft serial
27124
Aircraft time
55,781 hours, 25,348 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
Stage of operation
UK
How discovered
O
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

CORROSION ON ANCHOR NUT STRIPS UNDER FLOORBEAM AT BSTA 1682 LBL 47 TO RBL 52. REMOVED DAMAGE AND EVALUATED UPPER FWD FLANGE IAW SRM 51-10-02 AND SRM 53-00-51-1A. FOUND 1 AREA OUT OF LIMITS. PERFORMED REPAIR AT BS 1681.8 UPPER FORWARD FLANGE AREA LBL 47 IAW SRM 53-60-51-2R. REPAIR 4 FIG 201 DETAIL I REV 124. RE-PROTECTED AFFECTED AREAS IAW SRM 51-20-01 REV 124.

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