Service difficulty report · Stringer · Bombdr DHC8402

Difficulty date
December 8, 2012
Submitted
December 11, 2012
Operation
Air carrier
Aircraft
N406QX
Make and model
Bombdr DHC8402
Aircraft serial
4048
Aircraft time
27,831 hours, 29,029 cycles
Part
Stringer
Condition
Corroded
Location
Zone 200
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

STRINGER 31P HAS CORRODED RIVETS AND POSSIBLE CORROSION STA 49.5-71.2. REMOVED RIVETS TO FOM AND REMOVED CORROSION IAW SRM 51-42-05-02-01 AND 51-21-00-00-02. INSPECTED BLEND WITH HFEC , NO CRACKS NOTED REF NDTM PT 6 TASK 51-00-01-250-801. MIN REMAINING THICKNESS .063" REF NDTM PT 4 TASK 51-00-02-250-801. FOUND OUT OF LIMITS IAW SRM 53-00-00-02-17 TEMP REVISION 53-014, JULY 17, 2012. PERFORMED UT THICKNESS CHECK IAW NTM 51-00-04-910-801 PT 1. MIN REMAINING MATERIAL MEASURED 0.063 VERIFIED BLENDS ARE CRACK FREE WITH HFEC IAW NTM 51-00-06-910-801 PT 1. ALODINED, PRIMED IAW SRM 51-21-10-02-01 AND 51-25-10-02-01. INSTALLED RIVETS 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. CORROSION REMOVAL FOUND TO BE IN LIMITS IAW RD 8/4-53-4971. COMPLIED WITH TC RD 8/4-53-4971.