SDR DXTA200300069

Service difficulty report · Downlock Switch · Cessna 750

Difficulty date: July 20, 2003
Submitted: August 21, 2003
Operation: Air carrier
Aircraft: N933QS
Make and model: Cessna 750
Aircraft serial: 7500133
Aircraft time: 2,412 hours, 1,536 cycles
Engine: Allsn AE3007C
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Downlock Switch
Condition: Inoperative
Location: Rt Mlg
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: A

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

What was found

RIGHT MAIN LANDING GEAR INDICATION REMAINED GREEN AFTER GEAR WAS RETRACTED, USED EMERGENCY BLOW DOWN GEAR. LANDING WAS UNEVENTFUL. DETERMINED THE RIGHT GEAR ACTUATOR DOWNLOCK SWITCH WAS FAULTY, REMOVED AND REPLACED WITH NEW SWITCH, PERFORMED GEAR OPERATIONAL CHECKS AND RESETTING BLOWDOWN SYSTEM, WORK DONE IAW 750 MAINTENANCE MANUAL CHAPTER 32-30-04.

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