Pilots Operating Handbook
29/76
YL-MFG
Revision 7, Issue 1
4/6/2016
smell of burning insulation. The checklist procedure for electrical fires calls for electrical power to
be turned off. All flight instruments and navigation will be lost at this time. The checklist procedure
should result in the elimination of the fire. When the fire is extinguished, electrical power may be
turned on to those systems not involved. Navigation and flight information, if unaffected, should be
reposted to instruments within 1-2 minutes. If the fire is not extinguished, a rapid descent should be
initiated and the electrical system turned back on. This may provide airspeed and altitude data in
preparation for a forced landing.
3.4.6 Spins
Should an inadvertent spin occur, the following recovery procedure should be used:
1. IMMEDIATELY RETARD THROTTLE TO IDLE POSITION.
2. PLACE AILERONS IN NEUTRAL POSITION.
3. APPLY AND HOLD FULL RUDDER OPPOSITE TO THE DIRECTION OF ROTATION.
4. JUST AFTER THE RUDDER REACHES THE STOP, MOVE CONTROL BRISKLY FORWARD
FAR ENOUGH TO BREAK THE STALL. Full down elevator may be required at aft center of
gravity loadings to assure optimum recoveries.
5. HOLD THESE CONTROL INPUTS UNTIL ROTATION STOPS. Premature relaxation of the
control inputs may extend the recovery.
6. AS ROTATION STOPS, NEUTRALIZE RUDDER, WINGS LEVEL, FLAPS UP AND MAKE A
SMOOTH RECOVERY FROM THE RESULTING DIVE. AVOID OVERSTRESSING AND OVER
SPEEDING THE AIRFRAME.
NOTE: If the rate of the spin makes determining the direction of rotation difficult, the magenta
turn rate trend vector in the heading strip over the PFD Attitude Indicator will show the rate
and direction of the turn. The HSI compass card will rotate in the opposite direction. Hold full
rudder opposite the direction of the turn indicated by the turn rate trend vector.
3.4.7 Spark Plug Fouling
A slight engine roughness in flight may be caused by one or more spark plugs becoming fouled by
carbon or lead deposits. This may be verified by turning the IGN switch momentarily from BOTH to
either L or R position. An obvious power loss in single ignition operation is evidence of spark plug
or ignition trouble. With BOTH magnetos operating, run the engine at high rpm for a moment and
test again. If the problem does not clear up in several minutes, proceed to the nearest airport for
repairs using the BOTH position of the IGN switch unless extreme roughness makes the use of a
single IGN position necessary
