Service difficulty report · Squat Switch · Cessna 560CESSNA

Difficulty date
August 29, 2010
Submitted
August 30, 2010
Operation
Air carrier
Aircraft
N395QS
Make and model
Cessna 560CESSNA
Aircraft serial
5600496
Aircraft time
9,274 hours, 7,709 cycles
Engine
Pwa JT15D5
Part
Squat Switch
Part number
41EN496
Condition
Failed
Location
Mlg
Stage of operation
CR
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

ANTI SKID LIGHT ILLUM INFLT AT 35000. LIGHT WENT OUT AFTER ABOUT A MIN. CAME BACK ON 5 MIN LATER & STAYED ON UNTIL SWITCH TURNED OFF. FOUND SQUAT SWITCH DISAGREE BITE INDICATOR TRIPPED. RESET INDICATOR. JACKED ACFT & TESTED ANTI-SKID SYS, MONTIORED BITE INDICATORS DURING MLG SWINGS. FOUND SQUAT SWITCH DISAGREE TRIPPED DURING SWING. INSPECTED LT & RT SQUAT SWITCHES. FOUND LT SWITCH OUT OF ADJUST. TESTED LT SQUAT SWITCH FOR INTERNAL RESISTANCE. FOUND LT SQUAT SWITCH HAD HIGH INTERMITTANT RESISTANCE. REMOVED & INSTALLED A NEW SWITCH. RIGGED LT SQUAT SWITCH. TESTED RIG ON RT SQUAT SWITCH. FOUND OUT OF RIG. RIGGED RT SQUAT SWITCH. PERFORMED MLG SWINGS & ANTI-SKID OPS TESTS. CHECKED GOOD IAW MM 32-61-00.