3-24 P/N 23020-002
Cirrus SR20 and SR22 Flight Operations Manual
Section 3 Standard Operating Procedures
Taxi-Out
A cause of brake failure is the creation of excessive heat through
improper braking practices. Riding the brakes while taxiing causes a
continuous build up of energy which may lead to excessive heat.
Excessive heat causes warped brake rotors, damaged or glazed
linings, damaged o-rings, and vaporized brake fluid. To avoid brake
failure, observe the following operating and maintenance practices:
• Directional control should be maintained with rudder deflection
supplemented with brake pressure as required,
• Use only as much power (throttle) as is necessary to achieve
forward movement. 1000 RPM is enough to maintain forward
movement under normal conditions,
• Avoid unnecessary high speed taxiing. High speed taxiing will
result in excessive demands on the brakes, increased brake
wear and the possibility of brake failure,
• Use the minimum necessary brake application to achieve
directional control,
• Do not ride the brakes. Pilots should consciously remove
pressure from the brakes while taxiing. Failure to do so results
in excessive heat, premature brake wear, and increased
possibility of brake failure,
• Refer to the Handling, Service and Maintenance section of the
POH or the Maintenance manual for recommended
maintenance and inspection intervals for brakes.
Maintain high levels of situational awareness during all movement on
the airport surface to avoid a runway incursion accident. Minimize
tasks such as reading checklists or folding maps while taxiing. Utilize
the CMax airport diagram to aid in situational awareness.
• WARNING •
Maximum continuous engine speed for taxiing is 1000 RPM
on flat, smooth, hard surfaces. Power settings slightly above
1000 RPM are permissible to start motion, for turf, soft
surfaces, and on inclines. Use minimum power to maintain taxi
speed.
June 2008
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