Service difficulty report · Floorbeam · Boeing 737890

Difficulty date
December 21, 2024
Submitted
January 29, 2025
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
55,568 hours, 16,391 cycles
Part
Floorbeam
Part number
147A550611
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

STA 986 FLOORBEAM UPPER TEE CORRODED AT RBL 42. GROUNDED - YES. ON FURTHER INVESTIGATION CORROSION FOUND TO BE ON PREVIOUSLY INSTALLED REPAIR STRAP, NO ALLOWABLE DAMAGE LIMITS, REPAIRED FLOORBEAM IAW BOEING 737-800 SRM 53-70-51-2R-4W= 1.25 O= .125 R= .105 L= 3.50 D= .020.