The emergency procedure is titled "
Propeller Pump Light(s) --Steady," which is an area of debate in the community when it comes to only a flickering light.
We had to do the one that applied to the 602's
propeller pump housing.
In 2000 the intra aortic
propeller pump, a new device designed to continuously reduce after load, was developed (8).
Example performance curves for a large
propeller pump are shown in Figure 19-7.
The gear drive connects to a Lo-Lift single-stage,
propeller pump with a capacity of 50,000 gpm.
So, there I was (I had to say that, don't judge me), as we received indications of a loss of pressure from our main
propeller pump on our port side.
When the engine panels were removed, a steadily increasing leak from the
propeller pump housing was found.
Initial adjustments were in work when a bolt was found wedged between the
propeller pump housing and the reduction gearbox (RGB).
For general utility applications, the vertical-shaft modified
propeller pump is the most useful.
The first indication of a problem was a slight aroma of smoke in the cockpit, followed immediately by the illumination of the master-caution light, two
propeller pump lights, and an RPM overspeed of 105 precent on the starboard side.