SDR YADA20190118001

Service difficulty report · Squat Switch · Beech 1900C

Difficulty date: January 18, 2019
Submitted: January 19, 2019
Operation: Air carrier
Aircraft: N111AX
Make and model: Beech 1900C
Aircraft serial: UC81
Aircraft time: 75,580 hours, 64,150 cycles
System (JASC): 3260 · Landing Gear Position and Warning
Part: Squat Switch
Condition: Intermittent
Location: Landing Gear
Stage of operation: CL
How discovered: O
Nature of condition: S
Precautionary procedure: G, A

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

What was found

PILOT REPORTED CABIN PRESSURIZATION DUMPED AT 10,500 FEET, O2 MASKS WERE DEPLOYED AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED TROUBLESHOOTING AND FOUND THAT THE LANDING GEAR SQUAT SWITCH WAS INTERMITTENT AND CAUSING FALSE READINGS.

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