Section 3 – Emergency procedures
POWERPLANT EMERGENCIES
4.4. OIL PRESSURE LIMITS EXCEEDANCE
If oil pressure exceeds its lower or upper limit (0.8 – 7 bar), apply following pro-
cedure:
Excessive oil pressure drop leads to a high pitch propeller
configuration with consequent propeller feathering and en-
gine stopping.
An excessive oil pressure value can be counteracted by de-
creasing propeller rpm.
1. OIL PRESS CHECK
If oil pressure exceeds upper limit (7 bar)
2. Throttle Lever first REDUCE affected engine power by 10%
3. Propeller Lever Keep low rpm
4. OIL PRESS CHECK (verify if within limits)
5. Land as soon as practical
If oil pressure is under the lower limit (0.8 bar)
2. Land as soon as practical
If oil pressure is continuously decreasing
3. Affected engine SECURE (see engine securing procedure Para. 3)
4. Land as soon as possible applying one engine inoperative landing procedure.
See Para. 6.6
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