This Special Airworthiness Information Bulletin (SAIB) alerts you, owners and operators of certain Piper Aircraft, Inc. Model PA-18 and PA-19 airplanes with magneto toggle switches located on the left cabin panel, of an airworthiness concern, specifically that the magneto toggle switches can be inadvertently turned off when operating nearby controls and cause a loss of power during takeoff and landing. This SAIB also provides guidance on where to locate and/or replace the magneto toggle switches to reduce the likelihood of their inadvertent shutoff in flight.
At this time, this airworthiness concern has not been determined to be an unsafe condition that would warrant AD action under Title 14 of the Code of Federal Aviation Regulations (14 CFR) part 39.
