Service difficulty report · Floorbeam · Boeing 737990

Difficulty date
March 21, 2016
Submitted
April 11, 2016
Operation
Air carrier
Aircraft
N320AS
Make and model
Boeing 737990
Aircraft serial
33680
Aircraft time
45,793 hours, 17,529 cycles
Part
Floorbeam
Part number
146A94014
Condition
Corroded
Location
Bs 772
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

AFT CARGO COMPARTMENT, FLOOR PANEL SUPPORT TEE ASSY AT BS 772 IS CORRODED, EXFOLIATED. ACFT GROUNDED. REMOVED CORROSION ON AFT CARGO FLOOR SUPPORT TEE ASSY ON BS 772 IAW SRM 53-00-53-1A-2, ORIGINAL MATERIAL .070" MATERIAL LOSS .013", REMAINING MATERIAL .057" OUT OF LIMITS IAW SRM 53-00-53-1A-2. REPLACED TEE ASSY PO 863144.4 IAW SRM 51-10-02 PARA 9 INSTALLED ON ACFT ON CARD G664006.