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Sent: Friday, November 24, 2006 6:06 AM Subject: PA30 landing gear

A problem we have with a PA30 Twin Comanche, is that when selecting gear down, the gear starts to descend, but when partially extended, the circuit breaker "pops". We have removed & checked the gear motor & found it satisfactory, both conduits are free and serviceable, all wiring has been inspected, and found to be serviceable. Many retractions & extensions in the hangar on jacks, cannot reproduce this problem, which occurs only occasionally in flight. Any suggestions please? Thanking you in anticipation, (Mr) A.G.A  S.Africa


We have experienced this before. Verify circuit breaker is not weak, check amperage of gear motor during retraction, make sure it is not beyond the capability of the breaker. Make sure that the voltage at the gear motor does not droop below 12 volts and there is minimum loss ground circuit. Install new nylon lined conduits as the present ones probably bind under load. Rig as per Piper Letter 315.  Roger

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