Service difficulty report · Pressure Switch · Amtr LANCAIR235

Difficulty date
May 2, 2010
Submitted
May 12, 2010
Operation
General aviation
Aircraft
N123MX
Make and model
Amtr LANCAIR235
Aircraft serial
131
Aircraft time
1,350 hours, 1,000 cycles
Engine
Lyc O320D2A
Engine time
225 hours, 200 cycles
Part
Pressure Switch
Part number
490A26
Part serial
118
Condition
Binding
Location
Hyd System
Part time
1,350 hours, 1,000 cycles
Stage of operation
LD
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

LANDING GEAR DID NOT EXTEND AND GEAR-UP LANDING WAS MADE. POST INCIDENT INSPECTION AND OPERATION CHECK DEMONSTRATED REPEATABLE FAILURE CONDITION. HYDRAULIC PRESURE SWITCH WAS SHOWN A SOURCE OF FAILURE.