Drop in Oil Pressure
I am using Rotax 914 UL. In last flight I noticed, a sudden drop in oil pressure below minimum i.e., 2 bar and after and after some fluctuation it reached zero during the flight. I reduced the engine power to minimum to maintain the flight and did emergency landing. During flight oil pressure remain fluctuating between 4.25 bar and 0 bar.
For finding the cause of this sudden pressure I inspected oil lines, verified oil quantity and other instruments mentioned on Rotax Line maintenance manual. All the instruments were working properly.
However, I noticed leakage of oil below the radiator and it could be the possible reason for this sudden drop of oil pressure.
I repaired the oil lines and now the fluctuations are gone and the pressure is normal.
Rotax Line maintenance manual says that;
Damage can be expected if the oil pressure falls below the minimum value more than 0.5 bar (50kpa).
Oil pressure below the minimum permissible value more than 0.5 bar (50kpa) in flight
1-The whole cooling system must be inspected, repaired or overhauled in accordance with BRP-Power instructions for continued airworthiness.
The crankshaft must be replaced
2-Carry out detailed inspection of the affected engine components.
3-Cut oil filter housing and inspect filter mat for foreign matter.
4-Inspect all further systems for correct functioning.
Now my question is that do all these instructions are applicable in my case?
