SDR CA120412003

Service difficulty report · Switch · Grob G120A

Difficulty date: April 11, 2012
Submitted: September 14, 2015
Operation: General aviation
Make and model: Grob G120A
Aircraft time: 3,038 hours
Engine: Lyc AEIO540D4D5
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Switch
Part number: MS252534
Condition: Failed
Location: Te Flaps
Part time: 132 hours
Stage of operation: NR
How discovered: O
Nature of condition: F
Precautionary procedure: O

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

What was found

(CAN) FIRST ATTEMPT, FLAPS DIDNT RETRACT FROM TAKEOFF TO UP POSITION. SECOND ATTEMPT THEY WORKED FINE. 2ND OCCURANCE ON SAME FLIGHT, THE FLAPS DIDNT EXTEND TO TAKEOFF POSITION AND THE CIRCUIT BREAKER POPPED. REPLACED BOTH UP AND DOWN SWITCHES, ADJUSTED AND TESTED SERVICEABLE.

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