Service difficulty report · Downlock Switch · Cessna 750

Difficulty date
February 6, 2019
Submitted
February 8, 2019
Operation
Air carrier
Aircraft
N999QS
Make and model
Cessna 750
Aircraft serial
7500203
Aircraft time
14,655 hours, 8,920 cycles
Part
Downlock Switch
Part number
604071
Condition
Defective
Location
Mlg
Stage of operation
CL
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

RIGHT MLG LANDING GEAR RETRACTION DID NOT RETRACT - ON DEPARTURE RIGHT MAIN LANDING GEAR DID NOT RETRACT. WHEN GEAR HANDLE SELECTED UP RIGHT MAIN DID NOT APPEAR TO MOVE AT ALL. RIGHT GREEN GEAR LIGHT REMAINED STEADY GREEN. RED UNLOCKED LIGHT CYCLED NORMALLY. // SIGNOFF // GATHERED EQUIPMENT FROM TECHNIC AIR. OBTAINED HANGAR SPACE FOR AIRCRAFT. JACKED AIRCRAFT TO SWING GEAR. FIRST 3 GEAR SWINGS OPERATIONAL CHECKS WERE SATISFACTORY. ALL GEAR LIGHTS OPERATED CORRECTLY. APPLIED FREEZE SPRAY TO R/H DOWNLOCK SWITCH AND ACCOMPLISHED GEAR SWINGS. R/H "GREEN" DOWNLOCK LIGHT NOW STAYS ON THROUGH GEAR RETRACTION AND EXTENSION. NETJETS MAINTENANCE CONTROL ORDERED DOWN LOCK SWITCH P/N 6-0407-1. DOWN JACKED AIRCRAFT WHILE AWAITING PARTS DELIVERY DUE TO HANGAR AVAILABILITY. 02/07/2019 08:26:00 STANLEY REEDER ( C38338 ) JACKED AIRCRAFT. REMOVED R/H MAIN GEAR ACTUATOR DOWNLOCK SWITCH P/N 6-0407-1 S/N NSN AND INSTALLED NETJETS PROVIDED SWITCH P/N 6-0407-1S/N NSN AND ADJUSTED SWITCH IN REFERENCE TO CE750 MM CHAPTER 32-30-04. OPERATIONAL CHECK SATISFACTORY. DOWN JACKED AIRCRAFT.

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