2A ENGINE AND 20 ENGINE POWERPLANT TESTS (GROUND HOP) (Sheet 7 of 15)
Manually and gradually actuate throttle by pulling forward on throttle lever to full open position. -
Watch tachometer. In most cases, engine speed will surge over 2600 rpm and then stabilize within
30 seconds between 2550 and 2640 rpm. If rpm does not fall within this range, or keeps changing,
notify maintenance supervisor.
Gradually release throttle lever, allowing engine to return to idle speed (700-750 rpm).
Go on to Sheet 8