SDR CA091216009

Service difficulty report · Accumulator · Swrngn SA227AC

Difficulty date: December 14, 2009
Submitted: January 19, 2010
Operation: General aviation
Make and model: Swrngn SA227AC
Aircraft time: 13,659 hours
Engine: Garrtt TPE33111U
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Accumulator
Condition: Low
Location: Hyd System
Stage of operation: CL
How discovered: O
Nature of condition: S, J
Precautionary procedure: A

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

What was found

(CAN) AIRCRAFT RETURNED TO BASE AS THE LANDING GEAR WOULD NOT REMAIN UP AND LOCKED. MAINTENANCE INSPECTED AIRCRAFT AND ACCOMPLISHED GEAR SWINGS AND THE GEAR OPERATED NORMALLY. HYDRAULIC ACCUMULATOR WAS FOUND TO BE LOW AND THE PRESSURE WAS ADJUSTED TO MANUFACTURERS SPECIFICATIONS. GEAR CLEANED AND GREASES - ADDITIONAL GEAR SWINGS CARRIED AND FOUND TO BE WITHIN MANUFACTURERS SPECIFICATION. THE GEAR PROBLEM WAS POSSIBLE THE LOW ACCUMULATOR ON THE OUTSIDE AIR TEMPERATURE OF -40C (TC NR 20091216009)