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Airpart Supply Ltd are an Authorised Distributor & Stockist for the Lycoming EIS

LYCOMING EIS

Lycoming's EIS meets the ever-growing performance requirements of modern-day aircraft design, including less maintenance, lower weight, and more spark control than a traditional magneto.

  • The Lycoming EIS unit is a Lycoming proprietary design; it is engineered, tested and certified at the engine type certificate level
  • Drop-in capable replacement for magnetos
  • Service Instruction SI1070 is valid for certified engines, regardless of EIS installation, so there are no restrictions on fuel type (other than what is approved by engine model in SI1070). 
  • There are no maintenance intervals or inspections required, and the EIS unit matches the engine recommended TBO
  • The Lycoming EIS does not require an STC for single installation
  • The EIS eliminates the 500-hour inspection cost and, in single, fixed-timing installation allows for easier starting and smoother idle and better cold-start performance

Warranty: EIS units carry a 24-month (or TBO, wof) warranty as spares and on all Lycoming factory engines.  An EIS installed as a warranty replacement is only warranted for the balance of the original engine or parts warranty period.  On an overhauled engine, the EIS would be warranted for an additional 12-months beyond the overhauled engine 12-month warranty period.

Support Documents:

 

Once you have located the apprived replacement EIS magneto (using Service Instruction SI1443R) - select the required part number from the table below for pricing and availability:

Lycoming Part Number Description LED Code (S=Short Blink L=Long Blink)
66K4A3SN-01 4 Cyl, Plain Drive, 20 Degree, Fixed Timing (Lyc Eis) L-L-L-L
66K4A3SN-02 4 Cyl, Plain Drive, 25 Degree, Fixed Timing (Lyc Eis) L-L-L-S
66K4F3SN-01 4 Cyl, Impulse Drive, 20 Degree, Fixed Timing (Lyc Eis) L-L-L-L
66K4F3SN-02 4 Cyl, Impulse Drive, 25 Degree, Fixed Timing (Lyc Eis) L-L-L-S
66K6D3SN-01 6 Cyl, 20 Degree, Fixed Timing (Lyc Eis) L-L-L-L
66K6D3SN-02 6 Cyl, 25 Degree, Fixed Timing (Lyc Eis) L-L-L-S
66K6D3SN-03 6 Cyl, 23 Degree, Fixed Timing (Lyc Eis) L-L-S-L
66K6D3SN-04 6 Cyl, 20 Degree, Fixed Timing, Rev Rot (Lyc Eis) S-L-L-L

 

More information can be found on the Lycoming Engines website here: https://www.lycoming.com/eis