Service difficulty report · Skin · Doug DC873F

Difficulty date
May 9, 2003
Submitted
August 23, 2003
Operation
Air carrier
Aircraft
N604AL
Make and model
Doug DC873F
Aircraft serial
46047
Aircraft time
89,636 hours, 28,948 cycles
Part
Skin
Condition
Corroded
Location
Lt Wing
Part time
89,636 hours, 28,948 cycles
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

LT WING CTR L/E UPPER SKIN SHOWS INTERIM REPAIR & CORROSION BETWEEN STA XFS 360.250 AND XFS 379.000. REMOVED FASTENERS AND INTERIM REPAIR. REMOVED CORROSION, FOUND OUT OF LIMITS. TRIMMED OUT DAMAGED AREA. PERFORMED EDDY CURRENT INSPECTION. CLEANED, TREATED AND PRIMED AREA IAW SRM 51-1-8B. FABRICATED A REPAIR DOUBLER (7075-T6 AL0.071) AND A FILLER (7075-T6 AL0.063) IAW EODHL-030503, ED-3284. CLEANED, TREATED AND PRIMED REPAIR DOUBLER INTERIOR SURFACE AND FILLER IAW SRM 51-1-8B. APPLIED PRC SEALANT ON FAYING SURFACE IAW SRM 51-1-11 PG 9. INSTALLED DOUBLER AND FILLER WITH NEW FASTENERS ON LT WING CTR L/E UPPER SURFACE IAW EODHL-030503, ED-3284, SRM 51-1-20D PG 9.

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