SDR 97ZZZX3724

Service difficulty report · Selector Valve · Lear 55LEAR

Difficulty date
July 15, 1997
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N121US
Make and model
Lear 55LEAR
Part
Selector Valve
Part number
660036118
Condition
Inoperative
Location
Mlg
Stage of operation
AP
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

LANDING GEAR WOULD NOT EXTEND. GEAR HAD TO BE BLOWN DOWN WITH EMERGENCY SYSTEM. REPLACED GEAR DOOR SELECTOR VALVE WITH AN OVERHAULED UNIT. CYCLED GEAR NUMEROUS TIMES (45). OPS AND LEAK CHECKED GOOD. AIRCRAFT HOURS: 3,105.1. AIRCRAFT LANDINGS (CYCLES): 2,138.