Service difficulty report · Downlock Switch · Piper PA44180

Difficulty date
July 2, 2001
Submitted
July 6, 2001
Operation
General aviation
Make and model
Piper PA44180
Aircraft serial
4496013
Aircraft time
2,490 hours
Part
Downlock Switch
Part number
8929103
Condition
Inoperative
Location
Mlg
Part time
2,490 hours
Stage of operation
IN
How discovered
V
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

WHILE CONDUCTING A SCHEDULED INSPECTION,THE TECHNICIAN DISCOVERED SEVERAL WIRES WERE BROKEN OF THE DOWN LIMIT SWITCH.THERE WERE NO PROBLEMS REPORTED BY THE PILOT AT THIS TIME.ALSO WHEN PLACING THE AIRCRAFT ON JACKS AND PERFORMING A LANDING GEAR TEST THERE WERE NO PROBLEMS FOUND.EVERYTHING SEEMED NORMAL. WHEN THE LANDING GEAR WAS RETRACTED SEVERE TENSION OCCURED ON THE WIRES AND WERE THEREFORE PULLED FROM THE SWITCH ASSY.A PROBLEM COULD HAVE OCCURED IF ALL THE WIRES HAD BROKEN. BOTH THE LT AND RT DOWN LIMIT SWITCHES WERE REPLACED AND THE WIRES REROUTED. ATTENTION SHOULD BE PAID TO THE ROUTING OF THE WIRES,WHEN THE LANDING GEAR RETRACTS.

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