Service difficulty report · Floorbeam · Boeing 737990ER

Difficulty date
July 6, 2021
Submitted
July 22, 2021
Operation
Air carrier
Aircraft
N492AS
Make and model
Boeing 737990ER
Aircraft serial
44110
Aircraft time
20,808 hours, 6,661 cycles
Part
Floorbeam
Part number
147A550423
Condition
Corroded
Location
Bs 947 L-Rbl 20
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

AFT WET AREA STA 947 FLOOR BEAM LBL 20 TO RBL 20 CORRODED. GROUNDED - YES. REPAIRED STA 947.5 FLOOR BEAM IAW 737-900ER SRM 53-70-51-2R-5W 1.0 O .180 R .130 L 6.0 D .050.