Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
March 9, 2022
Submitted
April 8, 2022
Operation
Air carrier
Aircraft
N468WN
Make and model
Boeing 7377H4
Aircraft serial
33858
Aircraft time
58,378 hours, 34,580 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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

CORROSION ON FLOOR BEAM BS 312 LBL 50 WL 208. / [01] REMOVED CORROSION ON FLOOR BEAM BS 312 LBL 50 WL 208 IN A 2.9' X 2.2' AREA IAW SRM 51-10-02-0G-0[17] INSTALLED FLOOR PANEL 221DF AND 221BF USING NEW BACN11AF CLIPNUTS PER MM 51-40-02;[18] VERIFIED BACN11AF CLIPNUTS INSTALLED; IN CORRECTIVE ACTION ITEM 17; AWAITING ENGINEERING APPROVAL.;[19] REPAIRED DAMAGE ON FLOOR BEAM BS 312; LBL 50; WL 208 PER EA 22-153-00830.;[20] VERIFIED CORRECTIVE ACTION #19;[21] EDITED CORROSION LEVEL ON MEASUREMENT TABLE.

More about the Boeing 737-7H4