Service difficulty report · Floorbeam · Boeing 75723A

Difficulty date
July 14, 2025
Submitted
July 15, 2025
Operation
Air carrier
Aircraft
N921FD
Make and model
Boeing 75723A
Aircraft serial
24924
Aircraft time
79,459 hours, 28,783 cycles
Part
Floorbeam
Part number
146N5249
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

MCD STA 1640 SUPPORT BEAM BL 0.00 TO LBL 45.50 HAS CORROSION. REMOVED CORROSION AT STA 1640 SUPPORT BEAM BL 0.00 - LBL 45050 IAW SRM 51-10-02. FOUND OUT OF LIMIT IAW SRM 53-00-51-1A. REPAIRED FLOOR BEAM AT STA 1640, LBL 45.50 IAW SRM 53- 00-51-2R. MAJOR REPAIR.

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