Service difficulty report · Floorbeam · Boeing 727200

Difficulty date
September 26, 2003
Submitted
October 2, 2003
Operation
Air carrier
Aircraft
N469FE
Make and model
Boeing 727200
Aircraft serial
21581
Aircraft time
39,996 hours, 27,202 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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

CORROSION ON BEAM BS 269, LBL 3, WL 208. REMOVED CORROSION IN A 3.0 X 3.0 AREA, .050 MATERIAL LOSS FROM AN ORIGINAL THICKNESS OF .125 FOUND TO BE OUT OF LIMITS PER SRM 53-10-1 FIG. 1. REMOVED FE'S SEAT TRACK AT BS 268, REMOVED 4EA FLOOR SUPPORTS AT BS 266-276, LBL 3,RBL 3,RBL 14, AND BS 260-276, LBL 8, WL 208. REMOVED BEAM UPPER CHORD, FABRICATED CHORD FROM P/N 65-17588-66, ALOODINED, PRIMED, RESTORED SURFACE FINISH, INSTALLED REPLACEMENT CHORD AT BS 269, LBL 8-RBL 21, WL 208. REINSTALLED FLOOR SUPPORTS, INSTALLED FASTENERS IN FLOOR WEB REMOVED FOR BEAM REMOVAL, REINSTALLED F.E.'S SEAT TRACK. ALL WORK DONE PER SRM 51-30-2, 51-10-2, 51-30-5.

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