Service difficulty report · Floorbeam · Bombdr DHC8402

Difficulty date
December 6, 2012
Submitted
December 13, 2012
Operation
Air carrier
Aircraft
N406QX
Make and model
Bombdr DHC8402
Aircraft serial
4048
Aircraft time
27,831 hours, 29,029 cycles
Part
Floorbeam
Condition
Corroded
Location
Cabin
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

FLOORBEAM 32.4 HAS CORROSION ON BOTH SIDES OF THE CENTER SPLICE. REMOVED FLOOR SUPPORT BRACKET AND UPPER AFT SPLICE TO FOM IAW SRM 51-42-05-02-01. REMOVED CORROSION IAW SRM 51-21-00-00-02. FLOORBOARD SUPPORT FOUND TO BE OUT OF LIMITS IAW SRM 51-21-00-00-02 MIN REMAINING THICKNESS .069" CONFIRMED AFFECTED AREA CRACK FREE REF NTM 51-00-04-910-801 PT 1 AND 51-00-06-910-801 PT 1. APPLIED ALODINE AND PRIMER TO FLOORBEAM IAW SRM 51-21-10-02-01 AND 51-25-10-02-01. MATCH DRILLED NEW FLOORBOARD SUPPORT BRACKET IAW SRM 51-40-07-02-01. INSTALLED FLOORBEAM SUPPORT IAW SRM 51-42-05-02-01. APPLIED PRIMER IAW SRM 51-25-10-02-01. INSTALLED UPPER AFT SPLICE IAW SRM 51-42-05-02-01. MATERIAL LOSS FOUND TO BE IN LIMITS IAW RD 8/4-53-4979. COMPLIED WITH TC RD 8/4-53-4979.