SDR UPS07M49931

Service difficulty report · Structure · Doug MD11F

Difficulty date: April 20, 2007
Submitted: June 11, 2007
Operation: Air carrier
Aircraft: N287UP
Make and model: Doug MD11F
Aircraft serial: 48539
Aircraft time: 62,215 hours, 9,282 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 HORZ STAB BARREL NUT BORE NR 33 RIGHT FOUND WITH CORROSION. CORROSION REMOVED SRM 51-21-01VII R38. BOTTOM - REMAIN BLENDOUT 0.025" DEEP BORE-REAMED TO 1.178" DIA REMAIN BLENDOUT 0.095" DEEP EXCEED EO LIMITS. 10X MAG DVI C/O NO CORROSION. BORE FURTHER REAMED TO 1.203" DIA EN1246-07. BLENDOUT VOIDS & BOTTOM PERI RADIUSED, SMOOTHEN & PROTECTED SRM 51-21-01 VII R38. REPAIR SLEEVE BUSHING FAB & INSTALLED EO FIG 5. NR 33 RIGHT REPAIR IAW EN1246-07.

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