Service difficulty report · Floorbeam · Boeing 72721

Difficulty date
July 8, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N143FE
Make and model
Boeing 72721
Aircraft serial
19136
Part
Floorbeam
Part number
65402714
Condition
Corroded
Location
Bs 1010
Stage of operation
IN
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 LOWER FLANGE OF FLOORBEAM BS 1010, RBL 28 TO 48, WL 200 BETWEEN STRAP AND UNDER NUTPLATES. *S/D* REMOVED LOWER FLANGE OF FLOORBEAM BS 1010, RBL 19 TO RBL 70.5 AND REPLACED WITH T-CHORD 7075T73511, FABRICATED 2 ANGLES FROM 15-5 PH CRESS STEEL .071, 1 STRAP FROM 15-5 PH CRESS STEEL .100, 2 RADIUS FILLS - 100 FROM 7075 T-6, 1 STRAP 7075-T6 .130. ALL IAW EA NR 7-5310-34978 AND SRM 53-10-8 AND M/M 51-20-121 FED-EX.

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