Service difficulty report · Floorbeam · Boeing 75727B

Difficulty date
October 10, 2018
Submitted
November 23, 2018
Operation
Air carrier
Aircraft
N916FD
Make and model
Boeing 75727B
Aircraft serial
24137
Aircraft time
71,433 hours, 27,177 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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

MAIN CARGO DECK FLOORBEAM UPPER SURFACE EVIDENCE OF CORROSION AT BS 1200 RBL 49 AND 59 AND RBL 26 TO RBL 44. CORROSION REMOVED IAW SRM 51-10-02 REV 125 MEASURED AND EVALUATED BLENDS IAW SRM 53-00-51-1A DETAIL III REV 125 AND FOUND BLENDS TO BE OUT OF LIMITS AT SEVERAL LOCATIONS. NOMINAL THICKNESS OF UPPER CHORD = 0.130" MAX BLEND ALLOWED = 0.013" MAX DEPTH OF BLEND = 0.033". REPAIR CARRIED OUT IAW SRM 53-00-51-2R REPAIR 8.

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