I have just bought a new plane, the plane has Rotax engine type 912- uls2
till now they are only 26 engine hours
In the plane we have installed the Dynon SkyView system, during almost every flight
we get a Number of warning of a low full pressure, the warning is usually at the pressure is 1.2-1.8 psi ,usually the low pressure lasts for a
very short time and then it returns(displayed at SkyView system) to the to the low green zone between 3-4 psi
In other times the warning of low full pressure appears when we do the engine test before taxi, in that event if the pressure is low we use the auxiliary fuel pomp for a few seconds and when the pressure returns to the green zone and it is 4-5 psi we stop the auxiliary fuel pomp
The manufacturer of plane wroth in pilot hand book not to use both pumps( Mechanical pump' auxiliary pump) at the same time at
( take off and landing ),and actually we use the auxiliary fuel pomp only at emergency when we get a warning
To summer up - we get warning of a low pressure ,the low pressure lasts usually for a few seconds or more every time we fly ,
1) when we see the low pressure in real time (not in the warning display ) on the scale itself, we put on the auxiliary fuel pomp for a few seconds and when the pressure is ok we disconnect it,
2) most times the full pressure is in the at low green scale 2.8 psi
3) We know that if we had a analog Instrument and not a digital warning as we have we probably would have seen the low pressure at most of the times since it is for a short time( seconds or 1or 2 Minutes ) we guess since we didn’t don’t know how log actually it was
Since we put on the auxiliary pomp when we see it
We need advise how to deal with the described problem
Is the instruction not to run two pumps simultaneously is the right thing?
till now they are only 26 engine hours
In the plane we have installed the Dynon SkyView system, during almost every flight
we get a Number of warning of a low full pressure, the warning is usually at the pressure is 1.2-1.8 psi ,usually the low pressure lasts for a
very short time and then it returns(displayed at SkyView system) to the to the low green zone between 3-4 psi
In other times the warning of low full pressure appears when we do the engine test before taxi, in that event if the pressure is low we use the auxiliary fuel pomp for a few seconds and when the pressure returns to the green zone and it is 4-5 psi we stop the auxiliary fuel pomp
The manufacturer of plane wroth in pilot hand book not to use both pumps( Mechanical pump' auxiliary pump) at the same time at
( take off and landing ),and actually we use the auxiliary fuel pomp only at emergency when we get a warning
To summer up - we get warning of a low pressure ,the low pressure lasts usually for a few seconds or more every time we fly ,
1) when we see the low pressure in real time (not in the warning display ) on the scale itself, we put on the auxiliary fuel pomp for a few seconds and when the pressure is ok we disconnect it,
2) most times the full pressure is in the at low green scale 2.8 psi
3) We know that if we had a analog Instrument and not a digital warning as we have we probably would have seen the low pressure at most of the times since it is for a short time( seconds or 1or 2 Minutes ) we guess since we didn’t don’t know how log actually it was
Since we put on the auxiliary pomp when we see it
We need advise how to deal with the described problem
Is the instruction not to run two pumps simultaneously is the right thing?
