A close related issue
Hi
I would like to insist on No7 question. Last week during a test flight, after a successful left engine shutdown, we proceeded with the engine airstart with starter assist procedure.IAS 138 , Alt 9000ft, temp 2C.According to the procedure the propeller lever was just above feather. Before switching the fuel pump and starter on we had an indication of almost 20% Ng. Furthermore the propeller deviated from the feathered position with a sudden increase in drag from the left side. It seemed to me that the airflow in engine intake made the compressor spinning and also the oil gear pump. This might had changed the propeller pitch. Do you think it is normal or it is a problem of the engine?
Thank you in advance
PS The engine is a PT6A -112