Schweizer S330 - Tail Rotor Failure

3-10. FUEL CONTROL OR POWER TURBINE GOVERNOR
FAILURE (cont)

Failure producing an overspeed:

Attempt to control RPM by use of the twistgrip.

Uncontrollable overspeed:
CAUTION
Immediate pilot action is necessary because engine torque,
TOT, N
2
and rotor RPM may suddenly increase beyond
approved limits. When shutting down the engine, do not reduce
collective pitch until the rotor RPM has decreased to within the
normal operating range.

Shut down the engine (normal engine shutdown).
Make an autorotational landing.

Failure producing an underspeed:

Check twistgrip full open; beep to max.

Level flight is possible if sufficient power is available.

When power is insufficient for level flight, make an autorotational
landing.

Power turbine governor surge:
NOTE:
The following action takes the governor out of the system
and should eliminate the surge.

Beep N
2
to full high and reduce twistgrip to 91% N
2.
3-11. TAIL ROTOR FAILURE

Different types of failure may require slightly different techniques
for optimum success in recovery.
Emergency Procedures
Pilot's Flight Manual
Schweizer RSG, LLC.
Model 269D Helicopter
3-8
Reissued: 16 Jan 2019
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FAA Approved
Book 3.indd 76 8/4/19 1:25 PM