Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
October 13, 2020
Submitted
July 21, 2021
Operation
Air carrier
Aircraft
N8653A
Make and model
Boeing 7378H4
Aircraft serial
37037
Aircraft time
20,453 hours, 8,984 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs947
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 SUPPORT AFT CARGO PIT AT STA 947 RBL 24 TO LBL 13; W/L 156 / FLOOR SUPPORT AT STA 947 HAS CORROSION ' OUT OF LIMITS' 090 MATERIAL LOSS ALLOWED ON AFT SUPPORT IAW SRM 51-10-02-0G-0 LOCATED AND DRILLED NEW FLOOR SUPPORT IAW SRM 51-40-05-0G-0 ALSO BOEING DWG 149A8117 REV - INSTALLED IAW SRM 51-40-02-0G-0 ALSO BOEING DWG 149A8117 CIC'ED AREA IAW AMM 51-21-91-620-802

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