Cirrus Design Section 3
SR22T Emergency Procedures
P/N 13772-005 3-29P/N 13772-005 3-29
Propeller System Emergencies
Engine Speed High
RPM Warning: Engine Speed High
1. Power Lever ......................REDUCE by 2 in.Hg Manifold Pressure
If governor is not in control (RPM reduces and remains lower after
power adjustment):
2. Perform Propeller Governor Failure Checklist.
If governor is in control (RPM remains high, but stable after power
reduction):
3. Power Lever .. REDUCE below 34 in.Hg for climb, below 30.5in.Hg
for cruise.
If governed engine speed exceeds 2600 RPM:
4. Perform Propeller Governor Failure Checklist.
If governed engine speed is 2600 RPM or less:
5. Flight ............................................................................ CONTINUE
Amplification
Propeller governor is set in a fixed position, governed RPM is not
directly influenced by cabin controls. If propeller speed remains
stable after power lever is initially reduced (some over/undershoot
normal as governor adjusts blade angle), governor is functioning
normally but is governing at too high a speed. If propeller speed does
vary directly with power (or airspeed), behaving like a fixed pitch
propeller, propeller governing system has failed and should be
addressed by Propeller Governor Failure Checklist.
If governor is functional and sustaining high RPM, reducing manifold
pressure will decrease the engine loads and stress. Governor will
require maintenance adjustment.
RPM
Original Issue
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