Service difficulty report · Skin · Bombdr DHC8402

Difficulty date
October 20, 2012
Submitted
October 31, 2012
Operation
Air carrier
Aircraft
N407QX
Make and model
Bombdr DHC8402
Aircraft serial
4049
Aircraft time
27,207 hours, 28,507 cycles
Part
Skin
Condition
Corroded
Location
Nacelle
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

CORROSION FOUND ON UPPER AFT NACELLE SKIN PANELS INBD AND OTBD. REMOVED CORROSION FROM UPPER AFT NACELLE INBD AND OTBD SKIN PANELS IAW SRM 51-21-00-00-02, REV 11. MIN REMAINING THICKNESS NOTED .024 REF NTM 51-00-04-910-801 PT 1 REV 7. INSPECTED BLENDS WITH HFEC, NO CRACK NOTED REF NDTM 51-00-06-910-801 PT 1. FOUND REMAINING SKIN THICKNESS ON UPPER AFT OTBD SKIN PANEL TO BE OUT OF LIMITS IAW RD 8/4-54-1063. REMOVED DAMAGED AREA IAW RD 8/4-54-1063. VERIFIED TRIMED EDGE CRACK FREE IAW RD 8/4-54-1063. REMAINING BLEND AREAS FOUND TO BE IN LIMITS IAW RD 8/4-54-1063. ALODINED AND PRIMED AFT INBD NACELLE SKIN PANEL IAW RD 8/4-54-1063. FABRICATED, LOCATED AND DRILLED OTBD AFT SKIN USING 2024-T3 .040 AND 1 DOUBLER USING 2024-T3 .040. VERIFIED REPAIR SPLICE AND STRAP CRACK FREE IAW NTM 51-00-01-250-801 PT 1 AND 51-00-06-910-801 PT 1. ALODINED, PRIMED AND INSTALLED REPAIR DOUBLER AND ATTACHING PARTS IAW RD 8/4-54-1063. APPLIED TOP COAT IAW RD 8/4-54-1063. JOB COMPLETED IAW TC RD 8/4-54-1063.