Service difficulty report · Drive Assy · Grob G120A

Difficulty date
January 17, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Grob G120A
Aircraft time
3,506 hours
Engine
Lyc AEIO540D4D5
Part
Drive Assy
Part number
120A4283
Condition
Malfunctioned
Location
Flap
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

(CAN) FLAP SYS VERY SLOW TO OPERATE IN COLD WEATHER, -20C. CURRENT INITIALLY READS 25 AMPS WHILE OPERATING, AFTER A COUPLE CYCLES IT STILL READS 18 AMPS AND SYS OPERATES AT ROUGHLY HALF SPEED. DISCONNECTED FLAP ACTUATORS AND FLEX SHAFTS IN SYS AND AMMETER STILL READS 16 AMPS.

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