Service difficulty report · Modulator · Snias AS350BA

Difficulty date
September 23, 2011
Submitted
September 14, 2015
Operation
General aviation
Make and model
Snias AS350BA
Aircraft time
6,887 hours
Engine
Lyc LTS101600A3
Part
Modulator
Part number
430110212
Condition
Unserviceable
Location
Airflow
Stage of operation
AP
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

(CAN) PILOT REPORTED INCREASE IN COMPRESSOR SPEED AND DROP IN ROTOR RPM ON APPROACH. PILOT MANAGED TO LAND WITHOUT INCIDENT. MAINTENANCE PERSONNEL FOUND THE AIRFLOW MODULATOR DEFECTIVE DUE TO A BROKEN BLEED AIR TRANSFERT TUBE.