IO-370-CL / IO-370-DA3A / IO-370-CM

AT A GLANCE

Revision 5 lowers the listed minimum oil temperature for takeoff/maximum power and expands the spark-plug options in NOTE 6, with the model tables now referring to that note. It also changes the holder’s mailing address and the company wording in NOTE 23 while retaining the Continental Prime sales name. Engine ratings and certification bases are unchanged.

NOTE 2 changes the minimum oil temperature for takeoff/maximum power from 245°F (118.3°C) to 100°F (37.8°C). The maximum oil temperature remains 245°F (118.3°C); the other listed temperature limits are unchanged.

NOTE 6 retains Tempest UREM38E Spark Plugs (8) and adds Champion REM38E Spark Plugs (8) or other spark plugs listed in M-32 Section 6 for both ignition model groups. The spark-plug entries in the model tables on pages 2 and 3 change from Tempest UREM38E to “See NOTE 6.” The listed magnetos and ignition timing are unchanged.

The Type Certificate Holder address changes from 2039 South Broad Street, Mobile, AL 36615 to P. O. Box 90, Mobile, AL 36601. The holder remains Continental Aerospace Technologies, Inc.; the record-holder and company-name-change statements are unchanged.

NOTE 23 changes “Continental” to “Continental Motors” as the company that will market the IO-370 Series engines. The Continental Prime sales name is retained; it is not newly introduced by this revision.

Check the FAA source documents

Revision 4 · 02/12/2020
Open FAA DRS ↗ · Saved source PDF ↗

Revision 5 · 10/22/2026
Open FAA DRS ↗ · Saved source PDF ↗