Service difficulty report · Floorbeam · Boeing 737790

Difficulty date
October 12, 2022
Submitted
November 14, 2022
Operation
Air carrier
Aircraft
N626AS
Make and model
Boeing 737790
Aircraft serial
30793
Aircraft time
53,481 hours, 23,900 cycles
Part
Floorbeam
Part number
141A743444
Condition
Corroded
Location
Bs 259 L/Rbl 10
Stage of operation
IN
How discovered
9
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

FLOOR SUPPORT AT STA 259.5 HAS AREAS OF CORROSION ON UPPER FLANGE BETWEEN LBL-10 TO RBL-10. GROUNDED - YES. REPAIRED FLOOR SUPPORT AT STA 259.5 IAW ASA EA# 700-53EA-24860. THIS IS A CATEGORY B REPAIR WITH FIRST STAGE APPROVAL FOR STATIC STRENGTH AND WILL REQUIRE A NEW 8100-9 TO BE ISSUED FINDING COMPLIANCE WITH 14CFR26.43(D) PRIOR TO 9 NOV 2024.W=.850 O=.080 R=0.0 L=2.4 D=.080.