Service difficulty report · Pressure Switch · Beech 1900C

Difficulty date
January 8, 2016
Submitted
January 11, 2016
Operation
Air carrier
Aircraft
N127BA
Make and model
Beech 1900C
Aircraft serial
UB7
Aircraft time
27,533 hours, 39,160 cycles
Engine
Pwa PT6A65B
Engine time
31,228 hours, 43,188 cycles
Propeller
Hartzl HCB4MP3
Part
Pressure Switch
Part number
5038912929
Condition
Faulty
Location
Autofeather Sys
Stage of operation
TO
How discovered
O
Nature of condition
R
Precautionary procedure
C

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

What was found

IMMEDIATELY AFTER ROTATION THE LT PROPELLER AUTO FEATHERED. PILOT REDUCED POWER & IMMEDIATELY LANDED, ABORTING THE TAKEOFF. THE PROBLEM WAS DISCOVERED TO BE A FAULTY AUTO FEATHER LOW PRESS SWITCH.

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