Service difficulty report · Downlock Switch · Cessna 750

Difficulty date
January 10, 2005
Submitted
January 14, 2005
Operation
Air carrier
Aircraft
N996QS
Make and model
Cessna 750
Aircraft serial
7500196
Aircraft time
2,530 hours, 1,508 cycles
Part
Downlock Switch
Part number
SG006
Condition
Failed
Location
Mlg
Stage of operation
CL
How discovered
O
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

ON TAKEOFF NOSE GEAR CAME UP NORMAL, THROUGHT 10,000 FT NOTICED NOSE GEAR INDICATED DOWN. LIGHT WAS INTERMITTANT DURING FLIGHT. BLEW GEAR DOWN. UNSAFE LIGHT CAME ON FOR ABOUT 10 SECONDS, THEN WENT OUT. INSPECTED NLG DOWNLOCK SWITCH SG006 AND CONNECTOR PG006. ALSO INSPECTED AND RE-SEATED LANDING GEAR LOGIC MODULE NC002, FOUND NO DEFECTS. PERFORMED LANDING GEAR OPERATIONAL TEST REF 750 M/M 32-00-01. LANDING GEAR OPERATES NORMAL.

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