AIM 8/15/19  FIG 4 − 3 − 14 Start Engine FIG 4 − 3 − 12 Signalman’s Position FIG 4 − 3 − 13 All Clear (O.K.) FIG 4 − 3 − 15 Pull Chocks SIGNALMAN POINT TO ENGINE TO BE STARTED 4 − 3 − 29 Airport Operations