Service difficulty report · Floorbeam · Boeing 757204

Difficulty date
November 15, 2025
Submitted
November 17, 2025
Operation
Air carrier
Aircraft
N924FD
Make and model
Boeing 757204
Aircraft serial
26267
Aircraft time
71,263 hours, 29,788 cycles
Part
Floorbeam
Part number
146N50011
Condition
Corroded
Location
Zone 200
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 STA 1200 BETW BL 0 TO LBL 58 FLOOR BEAM UPPER T CHORD HAS CORROSION 7 SPOTS CUT OUT UPPER FLOOR BEAM FOUND AREA OUT OF LIMITS STA 1200 BL 0 TO LBL 58 IAW B757 SRM 53-00-51-2R FIG 201 REP 8 AND B757 SRM 53-0051-1A DET II MANUFACTURE (FORMED) REPAIR PARTS IAW B757 SRM 53-00-51-2R TABLE 202 FIG 201 DET II INSTALLED ALL REPAIR PARTS AND RE- INSTALLED PARTS WAS REMOVED FOR ACCESS IAW B757 SRM 51-40-02-0G AND B757 SRM 53-00- 51-2R FIG 201 DET II