J.P. Instruments EDM-960

For Your Safe Flight Page | 6
Section 2 - Interpreting Data
Operation for each Phase of Flight
(Worth adding to your run-up checklist.)
Engine Run-Up
Suggested setup:
 Set engine to run-up RPM
Normalize view
 Manual mode
Verify:
 uniform rise of about 50°F in all EGTs in
single magneto operation.
 uniform rise of EGTs with application of the
mixture control.
Be alert for:
 unusually low voltage (see AFMS)
 cold OIL and normal oil pressure
 abnormally high CHT
 large drop in EGT on one cylinder in single
magneto operation—may be fouled spark
plug.