Service Instruction No. 1443 T
Approved Slick Magnetos, Hartzell PowerUp Magnetos, and Lycoming Electronic Ignition System (EIS) on Lycoming Engines
Publications
DATE:
November 18, 2025
SUBJECT:
Approved Slick Magnetos, Hartzell PowerUp Magnetos, and Lycoming Electronic Ignition System (EIS) on Lycoming Engines
MODELS AFFECTED:
See Table 1
TIME OF COMPLIANCE:
Not applicable
REASON FOR REVISION:
Revised Table 1 to add approved Hartzell PowerUp magnetos. Added listings for IO-540-C1B5 and IO-540-S1A5 to Table 1 and Table 7. Added new Table 5 for Hartzell PowerUp to Lycoming cross reference.
