Service difficulty report · Tachometer · Snias AS350B

Difficulty date
March 1, 2000
Submitted
June 23, 2000
Operation
General aviation
Make and model
Snias AS350B
Aircraft time
10,208 hours
Engine
Tmeca ARRIEL1B
Part
Tachometer
Part number
0177555170
Condition
Unserviceable
Location
Internal
Component
Tach Box · Tmeca · 0177555170
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) ENGINE BLEED VALVE WHICH IS CONTROLLED BY THE TACHOMETER BOX INADVERTENTLY OPENED TWICE AT 98 PERCENT NG. OPERATOR WAS NOT ABLE TO DUPLICATE. POSSIBLE CAUSE WAS A SHORT IN THE TACHOMETER BOX.