Single-pole, Double-Throw (ON-OFF-ON) rocker switch that matches the form an fit of OEM rocker switches commonly used in Cessna aircraft. This switch configuration is necessary for aftermarket landing light pulse/wig-wag flashers where it is desired to retain the original switch layout but add a two-position switch (e.g. On-Off-Pulse).Type: Miniature Rocker SwitchActuator Color: WhiteBezel Color: BlackContact Form: SPDTSwitch Function: ON - OFFCurrent Rating: 15 AVoltage Rating AC: 125 VACTermination Style: Quick Connect; 0.25"Actuator: RockerMounting Style: PanelBrand: Carling TechnologiesActuator Style: RockerDielectric Strength: UL/CSA: 1000V - live to dead metal partsElectrical Life: 100,000 cyclesMechanical Life:100,000 cyclesOperating Temperature: 32°F to 185°F (0°C to 85°C)
Cessna-Style Double-Throw Rocker Switch | ON-OFF-ON
SPECIAL AIRWORTHINESS INFORMATION BULLETINSAIB: CE-09-42Date: July 24, 2009IntroductionThis Special Airworthiness Information Bulletin (SAIB) is being issued to advise you of anairworthiness concern on mandatory replacement intervals of Cessna Landing Light, Beacon Light,and Taxi Light switches on Cessna 100, 200, and 300 series airplanes specified per Cessna servicebulletins MEB09-3 and SEB09-6 dated May 11, 2009.At this time, this airworthiness concern is not considered an unsafe condition that would warrant anairworthiness directive (AD) action under Title 14 of the Code of Federal Regulations (14 CFR part39).BackgroundCessna 100, 200, and 300 series airplanes utilize switches in the Landing Light, Beacon Light, andTaxi Light circuits that have been reported failing in the field causing overheating and smoke in thecockpit. There have been reports of burned insulation on the wiring terminals to the switch. On atleast one occasion, there was a small fire in the cockpit. The failure in these applications can beattributed to contact erosion leading to irregular arcing and eventual failure of the switch. The contacterosion has been shown to occur after approximately 4,000 cycles of operation.Cessna service bulletins SEB09-6 and MEB09-3, initial release, dated May 11, 2009, specify thefollowing:• An inspection to determine time-in-service for the switches.• Replacement of switches that have been in service for four or more years with the month andyear of the installation written on the new replacement switch.• The month and year of the initial installation written on switches that have been in service forless than four years.RecommendationsThe FAA recommends that owners, operators, and maintenance technicians do the actions of theabove-referenced service bulletins within the next 400 hours of operation, 12 months, or the nextannual inspection, whichever comes first.