Service difficulty report · Floorbeam · Boeing 7379

Difficulty date
August 15, 2026
Submitted
August 18, 2026
Operation
Air carrier
Aircraft
N37518
Make and model
Boeing 7379
Aircraft serial
64495
Aircraft time
18,811 hours, 6,212 cycles
Part
Floorbeam
Part number
147A550430
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

AFT WET AREA FLOOR BEAM WITH CORROSION AREA AROUND HARD POINT FITTING BS 947 LBL 50. INSTALLED REPAIR ON STA 947.5 TRANSVERSE FLOOR BEAM UPPER CHORD IN ACCORDANCE WITH SRM 53-70-51-2R-5, AAR-MIA ESR-WI NO.: 2024492-4-15612 REV. IR, AND UNITED EC/RA 5370-01250 REV. ORIGINAL . INSTALLED REPAIR ON STA 947.5, FROM LBL58 TO RBL58, TRANSVERSE FLOORBEAM UPPER CHORD IN ACCORDANCE WITH B737-9MAX SRM 53-70-51-2R-5, AAR-MIA ESR-WI NO.: 2024492-4-15612 REV. IR, AND UNITED EC/RA 5370-01250 REV. ORIGINAL. CW ESFR ENTRY AND NO DIP REQUIRED.

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