Service difficulty report · Longeron · Doug DC931

Difficulty date
December 9, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N928ML
Make and model
Doug DC931
Aircraft serial
47326
Part
Longeron
Condition
Corroded
Location
Fuselage
Stage of operation
IN
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

MHV - SURFACE CORROSION WITH EXFOLIATION ON LONGERON DIRECTLY BENEATH OUTFLOW VALVE IN AFT PIT, RIB ANGLE IN FRONT OF OUTFLOW VALVE HAS SURFACE CORROSION DOWN AND TO RT OF VALVE. REMOVED CORRODED STRAP, FABRICATED NEW PART ALODINED, PRIMED, AND INSTALLED IAW SRM 51-10-1, 51-10-3, 51-30-4. REMOVED CORROSION PER SRM 51-10-3 (WAS .040, IS .039, WITHIN LIMITS PER SRM 53-01 FIG 1. ALODINED AND PRIMED PER SRM 51-10-3. (M)

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