Service difficulty report · Bracket · Bombdr DHC8402

Difficulty date
December 15, 2012
Submitted
December 26, 2012
Operation
Air carrier
Aircraft
N406QX
Make and model
Bombdr DHC8402
Aircraft serial
4048
Aircraft time
27,831 hours, 29,029 cycles
Part
Bracket
Condition
Corroded
Location
Bs 361
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

BRACKET ATTACHED TO FRAME 361 AT STRINGER 28P IS CORRODED, WITH CORROSION EXTENDING ON THE MOUNT SURFACE ATTACHED TO THE FRAME. REMOVED ATVA IAW AMM 23-35-166-000-801. REMOVED THE ANVS BRACKET IAW SRM 51-40-07-02-01. REMOVED CORROSION ON FRAME 361 IAW SRM 51-21-00-00-01. MIN REMAINING THICKNESS .045", CONFIRMED AFFECTED AREA CRACK FREE REF NTM 51-00-04-910-801 PT 1 AND 51-00-06-910-801 PT 1. ALODINE TREATED AFFECTED AREA IAW SRM 51-21-10-02-01, PRIMED AND PAINTED IAW SRM 51-25-10-02-01. ALUMINIZED PAINTED AFFECTED AREA IAW SRM 51-25-15-02-01. MATCH DRILLED NEW ANVS BRACKET IAW SRM 51-40-07-02-01. INSTALLED BRACKET IAW SRM 51-42-05-02-01. REINSTALLED ATVA REF AMM 23-35-16-400-801. MATERIAL LOSS ON FRAME FOUND OUT OF LIMITS IAW SRM 51-21-00-00-01, SUBMITTED TO ENGINEERING. APPLIED CPC IAW AMM 51-25-01-390-801. FOUND BLEND ON FRAME TO BE IN LIMITS IAW RD 8/4-53-5019. COMPLIED WITH TC RD8/4-53-5019.