Service difficulty report · Floorbeam · Boeing 767323

Difficulty date
August 29, 2005
Submitted
October 27, 2005
Operation
Air carrier
Aircraft
N389AA
Make and model
Boeing 767323
Aircraft serial
27449
Part
Floorbeam
Condition
Corroded
Location
Bs 325
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

AFW FLOORBEAM AT STATION 325 HAS CORROSION REMOVED ON UPPER AND LOWER SURFACE BEYOND SRM LIMITS. AREA IS 1.0 INCH BY .021 INCH AT RT BUTTLINE 16, 1.1 BY .040 AT RT BUTTLINE 19.5, 1.2 BY .045 INCH AT RT BUTTLINE 25.5 AND 2.0 BY .021 INCH AT RT BUTTLINE 54 WITH A DEPTH OF .045. REMOVED AND VERIFIED CORROSION REMOVED. FABRICATED REPAIR STRAP FROM 301 AND A HALF HARD STAINLES STEEL .063 THICK. ALODINED ALL BARE ALUMINUM SURFACES. FINISHED BLEND AND REPAIR PARTS WITH TWO COATS OF BMS 10-11 PRIMER. FILLED BLENDS WITH BMS592. INSTALLED REPAIR STRAP WITH BMS595 SEALANT USING BACB30NWG FASTENERS FOR NEW LOCATIONS AND SAME TYPE AS EXISTING FASTENERS AT EXISTING LOCATIONS. INSTALL WITH 4 6D SPACING.