Bend, OR January 26 2016 – CiES Inc., the largest producer of aviation fuel quantity systems, in conjunction with Aerospace Logic, have achieved a significant milestone in getting FAA approval to apply its digital fuel quantity system technology to nearly all light aircraft.

CiES brings a new technology for measuring fuel quantity in aircraft or fuel technology in any high value application. The CiES patented fuel sender technology is a digital non-contact method which is Explosion Proof and Lightning safe.

In this STC the Aerospace Logic Digital Fuel Gauge is paired with the CiES TSO Digital Fuel Sender.

Over 1,500 aircraft in the field already fly with CiES digital fuel quantity systems. CiES fuel quantity systems are included on all new Cirrus Aircraft SR50 Jet, SR20, SR22 and, Quest Kodiak, Vulcanair P68, Gippsland GA10, CAIGA with many more to be added in the coming months.

Early this year, CiES contacted the FAA Small Aircraft Directorate and Transport Canada to illustrate how CiES could replace failing and legacy fuel quantity indication as a retrofit program if an AML STC could be obtained. We demonstrated to both the FAA and Transport Canada that our success in OEM applications, which required the CiES digital fuel sender to be a fit form and function replacement for existing fuel senders could translate to legacy in service aircraft.

“For years, pilots of type certificated aircraft have suffered with marginal or less than functional fuel quantity information,” said Scott Philiben, CiES President. “Many pilots don’t trust let alone rely on this FAA required instrumentation. The industry asked for a better solution, and the result was a universal system that is applicable and retrofitable to most GA aircraft.”

This STC illustrates that a conventional approach to FAA Approval utilizing the TSO components is still a viable method of incorporating changes when safety of flight and mandatory regulatory FAA requirements are involved.

The CiES digital fuel quantity system utilizes a high technology sensor system that allows repeatable accurate measurement of fuel in aircraft tank. This patented sensor system allows fuel measurements down to a change in fuel level to less than 10ths of a gallon of AVGAS or Jet A. The non-contact measurement method insures a lifetime of operation, and a lifetime of safety providing the same consistent fuel level output in the cockpit with modern digital fuel indication.

This initial STC allows the CiES to replace the existing fuel quantity senders matched with a Aerospace Logic digital input gauge on the following aircraft:

  • Beech 33, 35, 36, 55, 58
  • Cessna 150, 152, 170, 172, 175 177, 177RG,180,182,185,190,195, 206, 207 & 210
  • Cessna 310, 320, 340, 337, 411, 414, 421
  • Cessna 188
  • Cirrus SR20 SR22 – Both Fuel and FIKI Senders
  • Fairchild 24
  • Gippsland GA8
  • Maule
  • Mooney
  • Piper PA 20, PA 22, PA 23, PA 24, PA 28, PA 30, PA 31, PA 32, PA 39, PA 44
  • Vulcanair P68
  • Aeronca
  • Aerostar PA60
  • American Champion
  • Britten Norman BN2
  • Navion
  • Aviat
  • Bellanca

More aircraft approvals are expected to follow.

“Everybody involved from FAA Small Aircraft Directorate, Transport Canada, Aerospace Logic and CiES were dedicated to the success of this critical safety project approval. A perfect example of this collaborative process is the low fuel programmable warning.

The Small Aircraft Directorate asked if an annunciation output could be provided for “Low Fuel” as a retrofit. CiES went back to our system design and software and realized if we re-purposed the JET A fuel temperature output – we could give the FAA and flying public a viable and predictable low fuel warning.

The CC284022 Fuel quantity senders have amassed over 572,000 hours of operation in OEM

Aircraft and have an outstanding record of near zero service removals with over 10,000 senders fielded. CiES has the experience and capability to insure that GA aircraft fuel quantity can and will be accurate in the aircraft of the future, and that same capability is available for your legacy aircraft.

Founded in 2010, CiES’s mission is to create the best aircraft systems for aviation and other high value markets. With an enviable portfolio of OEM customers and platforms worldwide CiES is the leading manufacturer of fuel quantity systems for GA Aircraft. Continuing a tradition started with our introduction of their first digital fuel quantity system, CiES is committed to developing innovative products at affordable prices for all aircraft manufacturers & pilots.

For more information about CiES products and capabilities, please call (541)977-1043, email or visit