SDR UPS07M51045

Service difficulty report · Structure · Doug MD11F

Difficulty date: August 30, 2007
Submitted: October 29, 2007
Operation: Air carrier
Aircraft: N290UP
Make and model: Doug MD11F
Aircraft serial: 48456
Aircraft time: 78,001 hours, 12,487 cycles
System (JASC): 5510 · Horizontal Stabilizer Structure
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 EMP - LT HORZ STAB NR 12 BARREL NUT BORE FOUND CORROSION. CORROSION AT BARREL NUT BORE REMOVED. BORE REAM & REMAINING BLEND OUT FOUND EXCEEDING LIMITS. 10X MAGNIFICATION DETAIL VISUAL INSP C/OUT FOUND NO CORROSION. BARREL NUT BORE BLEND OUT VOIDS & BOTTOM PERIPHERY RADIUS SMOOTHEN & PROTECTED. C/OUT FR PRIMER TOUCH UP AT BARREL NUT BORE. REPAIR SLEEVE BUSHING FAB & PROTECTED. PR 1422 B1/2 SEALANT APP.

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