C
IRRUS
D
ESIGN
S
ECTION
3: E
MERGENCY
P
ROCEDURES
SR20
P
ROPELLER
S
YSTEM
E
MERGENCIES
P/N 11934-005
3-23
Propeller System Emergencies
RPM Warning
Propeller Governor Failure
Propeller RPM Will Not Increase
Propeller Overspeeds or Will Not Decrease
RPM
Engine Speed High
1. Tachometer........................................................................................ CHECK
◆
If engine speed normal:
a. If on ground....................................... CORRECT PRIOR TO FLIGHT
b. If in flight .......................................................CONTINUE, MONITOR
Procedure Complete
◆
If engine speed high:
Checklist.
2. Oil Pressure Gauge ........................................................................... CHECK
Procedure Complete
1. Oil Pressure........................................................................................ CHECK
2. Land as soon as practicable.
Procedure Complete
1. Power Lever ..................................ADJUST (TO KEEP RPM IN LIMITS)
2. Airspeed .................................................................... REDUCE TO 90 KIAS
3. Land as soon as practicable.
Procedure Complete
• N
OTE
•
If the RPM does not respond to power lever movement or over-
speeds, the most likely cause is a faulty governor or an oil system
malfunction. If moving the power lever is difficult or rough,
suspect a power lever linkage failure and perform the
Checklist.
Reissue A