SDR UPS07M50836

Service difficulty report · Structure · Doug MD11F

Difficulty date: July 16, 2007
Submitted: October 5, 2007
Operation: Air carrier
Aircraft: N289UP
Make and model: Doug MD11F
Aircraft serial: 48455
Aircraft time: 75,126 hours, 12,047 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 HORIZONTAL STAB LEFT 01 BARREL NUT BORE FOUND CORRODED. CORR AT BARREL NUT BORE REMOVED PER SRM 51-21-01 VII R38. BORE BOTTOM REMN BLEND OUT 0.030" DEEP & BORE REAMED TO 1.549" DIA, REMN BLEND OUT 0.050" DEEP, EXCEED LIMIT. BARREL NUT BORE, BLEND OUT VOIDS & BOTTOM PERIPHERY RADIUS SMOOTHEN & PROTECTED PER SRM 51-21-01 VII R38. SLEEVE BUSHING FAB, PROTECTED & INSTALLED. REPAIR C/O IS ACCEPTABLE PER EN1435-07.

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