Service difficulty report · Floorbeam · Boeing 7378KN

Difficulty date
January 13, 2025
Submitted
May 6, 2025
Operation
Air carrier
Aircraft
N832SY
Make and model
Boeing 7378KN
Aircraft serial
40243
Aircraft time
45,852 hours, 19,215 cycles
Part
Floorbeam
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

PASSENGER COMPARTMENT FLOOR STRUCTURE AT STA 986.5 BETWEEN RBL 45 AND LBL 45 FLOOR BEAM UPPER CHORD WITH CORROSION IN SEVERAL PLACES. REPAIRED TRANSVERSE FLOORBEAM AT STA 986.5 UPPER CHORT SECTION BETWEEN LBL52 AND RBL52 (SPLICED AT LBL 7.9) IAW SRM 53-70-51-2R-4 REPAIR 4 PARAG 1A PARAG 2 AND PARAG 4 ALTERNATIVE 1 FIGURE 204 NOTE: THIS REPAIR IS A CATEGORY A REPAIR THE INSPECTIONS GIVEN IN THE MPD ARE SUFFICIENT TO MAINTAIN DAMAGE TOLERANCE OF THE INITIAL STRUCTURE SRM REV 83 DATED 11/10/2024

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