Trim aircraft to trim speed (132 ± 3
Airspeed - Reduce by one knot/
second until aircraft stalls (92 ± 3
Airspeed - Record when stall warning
horn is first heard.
Silencer switch - DISABLE (stall
warning horn should be silenced).
Silencer switch - ARM.
Airspeed (at stall) - Record (KIAS).
Roll must be controllable within 30
degrees left or right.
Flap operation - Check as follows:
Airspeed - Reduce to 173 KIAS
Flaps APPROACH. Check flaps for
operation and for excessive aircraft
Airspeed - Reduce to 127 KIAS or