Service difficulty report · Downlock Switch · Cessna 560CESSNA

Difficulty date
November 29, 2007
Submitted
November 30, 2007
Operation
Air carrier
Aircraft
N809QS
Make and model
Cessna 560CESSNA
Aircraft serial
5600698
Aircraft time
1,636 hours, 1,309 cycles
Engine
Pwa PW535A
Part
Downlock Switch
Condition
Intermittent
Location
Mlg
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

GEAR UNSAFE INDICATION ON LT MAIN. RECYCLED GEAR IAW ACP REQUEST STILL UNSAFE. DIVERTED, VISUAL FLY BY INSPECTION INDICATED OK. LANDED WITH NO INCIDENT. COULD NOT CONFIRM DISCREPANCY. PERFORMED MULTIPLE GEAR SWINGS WITH ALL NORMAL INDICATIONS. SUSPECT INTERMITANT LT MLG ACTUATOR DOWN LOCK SWITCH. REMOVED AND REPLACED NR 1 MLG ACTUATOR WITH SERVICABLE UNIT IAW CE-560 M/M CHAP 32-31-10. PERFORMED GEAR SWINGS. OPS CHECK AND LEAK CHECK SATISFACTORY.