SDR ASMF201606005

Service difficulty report · Nut · Boeing 7378Q8

Difficulty date: April 25, 2016
Submitted: June 20, 2016
Operation: Air carrier
Aircraft: N858AM
Make and model: Boeing 7378Q8
Aircraft serial: 30671
Aircraft time: 49,088 hours, 17,230 cycles
System (JASC): 2780 · Leading Edge Slat Control System
Part: Nut
Condition: Loose
Location: Control Valve
Stage of operation: IN
How discovered: O
Nature of condition: K
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING TRANSIT CHECK, A HYDRAULIC LEAK WAS DETECTED IN THE AFT FUSELAGE SKIN. MAINTENANCE PERSONNEL PERFORMED REVISION DETECTING HYDRAULIC LEAK AT NUT ON FLAPS, SLATS CONTROL VALVE. THE FLAPS, SLATS CONTROL VALVE NUT WAS TIGHTENED IAW AMM 27-81-81, TESTED CORRECT.

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