SDR 2010FA0000644

Service difficulty report · Relay · Beech F33A

Difficulty date: June 27, 2010
Submitted: June 27, 2010
Operation: General aviation
Aircraft: N8101C
Make and model: Beech F33A
Aircraft serial: CE1538
Aircraft time: 21,450 hours
Engine: Cont IO520BB
Engine time: 1,200 hours
Propeller: Hartzl PHCC3YF1
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Relay
Part number: SM50D7
Part serial: MFG0948
Condition: Failed
Location: Mlg
Part time: 384 hours
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

PILOT REPORTED AFTER PUTTING THE GEAR SELECTOR IN THE DOWN POSITION THE GEAR WOULDN’T EXTEND, PILOT CRANKED THE GEAR DOWN AND RETURNED TO BASE. ON TROUBLESHOOTING THE MECHANIC FOUND RELAY FAILED INTERNALLY, 384 FLIGHT HOURS, ESTIMATED CYCLES 1536. PROBABLE CAUSE AT THIS TIME UNKNOWN.

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