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
Fuselage
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 AT THE LT SPLICE INCLUDING SPLICE PIECES. REMOVED LT SPLICE PIECES FLOORBEAM 32.4 IAW SRM 51-42-05-02-01. REMOVED CORROSION IAW SRM 51-21-00-00-02. SPLICES FOUND TO BE OUT OF LIMITS IAW SRM 53-20-43-00-01. REMOVED FLOORBOARD SUPPORT BRACKET IAW SRM 51-42-05-02-01 FOUND TO BE OUT OF LIMITS IAW SRM 53-20-43-00-01. MIN REMAINING THICKNESS NOTED .072" CONFIRMED AFFECTED AREA CRACK FREE REF NTM 51-00-04-910-801 PT 1 AND 51-00-06-910-801 PT 1. APPLIED ALODINE, PRIMER TO FLOORBEAM IAW SRM 51-21-10-02-01 AND 51-25-10-02-01. MATCH DRILLED NEW SPLICES AND FLOOR SUPPORT BRACKET IAW SRM 51-40-07-02-01. INSTALLED SPLICES AND FLOOR SUPPORT BRACKET IAW SRM 51-42-05-02-01. APPLIED TOP COAT AND CPC IAW SRM 51-25-15-02-01 AND AMM 51-25-01-390-801. MATERIAL LOSS FOUND TO BE IN LIMITS IAW RD 8/4-53-4979. COMPLIED WITH TC RD 8/4-53-4979.