Service difficulty report · Structure · Doug MD11F

Difficulty date
November 22, 2007
Submitted
January 23, 2008
Operation
Air carrier
Aircraft
N291UP
Make and model
Doug MD11F
Aircraft serial
48477
Aircraft time
45,846 hours, 5,703 cycles
Part
Structure
Condition
Corroded
Location
Horizontal Stab
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE:C HORIZ STAB CONSTANT SECTION LT NR 1 BARREL NUT BORE FOUND CORROSION. CORROSION AT B-NUT BORE REMOVED. BORE BOTTOM REMAINING BLEND OUT 0.030" DEEP, BORE REAM TO 1.549" DIA REMAINING BLEND OUT 0.052" DEEP, FOUND EXCEED LMT 10X MAG INSP C/O AND FOUND NO CORROSION EVIDENT. REPAIR SLEEVE BUSHING FAB, PROTECTED AND INSTALLED. REPAIR C/O AT LT NR 01 B-NUT BORE IS ACCEPTABLE PER EN1735-07.

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