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SDR ASAA2016020115275

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Service difficulty report · Floorbeam · Boeing 737890

FAA SDR system

Difficulty date
February 1, 2016
Submitted
February 5, 2016
Operation
Air carrier
Aircraft
N586AS
Make and model
Boeing 737890
Aircraft serial
35189
Aircraft time
32,064 hours, 9,851 cycles
System (JASC)
5315 · Fuselage Main, Floor Beam
Part
Floorbeam
Part number
143A9485Y35
Condition
Corroded
Location
Bs 500i
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

FWD CARGO COMPARTMENT AFT BULKHEAD LOWER FLOOR SUPPORT ANGLE CORRODED BS 500I, RBL 21 - LBL 21. ACFT GROUNDED. REMOVED CORROSION FWD CARGO BULKHEAD LOWER FLOOR SUPPORT ANGLE BS500 ORIGINAL MATERIAL THICKNESS WAS .071 LOST .016 REMAINING IS .055 FOUND TO BE OUT OF LIMITS IAW AMM 53-00-53-1A-2 AND DWG 1517-2828 TOOL USED T8522V. REMOVED CORRODED FLOOR SUPPORT ANGLE AND INSTALLED NEW FLOOR SUPPORT ANGLE IAW SRM 51-40-02 AND 51-40-05.