SDR UPS08M51475

Service difficulty report · Structure · Doug MD11F

Difficulty date: November 19, 2007
Submitted: January 21, 2008
Operation: Air carrier
Aircraft: N291UP
Make and model: Doug MD11F
Aircraft serial: 48477
Aircraft time: 45,846 hours, 5,703 cycles
System (JASC): 5514 · Horizontal Stabilizer Miscellaneous Structure
Part: Structure
Condition: Corroded
Location: Horiz Stab
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

INSPECTION TYPE:C LEFT HORZ STAB NR 23 BARREL NUT HOLE FOUND CORROSION. CORR AT B NUT REMOVED. BORE BOTTOM SURFACE CLEANED & BORE REAM TO 1.067" DIA, REMN BLEND OUT 0.048" DEEP, EXCEEDED LIMITS. 10X MAG-DETAIL VISUA L INSP C/O & FOUND NO CORR EVIDENT. B NUT BORE, BLEND OUT VOIDS & BOTTOM PERIPHERY RADIUS, SMOOTHEN & PROTECTED. REPAIR SLEEVE BUSHING FAB & INSTALLED. REPAIR C/O IS ACCEPTABLE PER EN1726-07.

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