Service difficulty report · Tach Box · Snias AS350B

Difficulty date
December 17, 1997
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Snias AS350B
Engine
Tmeca ARRIEL1B
Part
Tach Box
Part number
0177555170
Condition
Shorted
Location
Engine Bleed
Stage of operation
CL
Nature of condition
J, R
Precautionary procedure
O

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

What was found

(CAN) TACH BOX CYCLED BLEED VALVE OPEN AND CLOSED A COUPLE OF TIMES BEFORE STAYING OPEN. THIS HAPPENED SPORADICALLY AND AT LOW ALTITUDE, COULD NOT GET FULL POWER.