How Long Do Aircraft Accident Investigations Take?

When an aircraft accident occurs, one of the first questions people ask is: "How long will the investigation take?" The answer isn’t simple. Aircraft accident investigations are highly technical, regulated processes that can take months—or even years—to complete. 🕒 Typical Timeline Most investigations unfold in several stages: Preliminary Report (First 30 Days): Within the first month, investigators usually release a preliminary report. This outlines basic facts—such as the aircraft type, flight path, weather conditions, and known data from the black boxes (if available). Final Report (6 Months to 2 Years): A full investigation typically takes between 6 months and 2 years, depending on the severity and complexity of the accident. Some of the accidents takes longer than that like the Ethiopian Airlines accident flight 302 it took over 45 month to complete a final report.  🛬 What Affects the Duration? Several factors can extend the timeline of an aircraft investigation: 1. Wr...
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Ampaire’s AMP-H570 Becomes First Hybrid System to Secure FAA Certification Basis

 In a landmark development for sustainable aviation, Ampaire has announced that the Federal Aviation Administration (FAA) has issued a G-1 Certification Basis for its AMP-H570 hybrid electric propulsion system. This approval marks the first time a hybrid electric system has received such recognition from the FAA, positioning Ampaire as a frontrunner in the race to electrify air travel.

The G-1 Certification Basis establishes the airworthiness and environmental benchmarks that the AMP-H570 must meet to achieve a Supplemental Type Certificate (STC). With this milestone, Ampaire moves into the next phase of the certification process—defining the Means of Compliance and conducting extensive validation testing in collaboration with the FAA.



Hybrid Tech for a Greener Sky

The AMP-H570 system features a parallel hybrid architecture inspired by early automotive hybrids. This configuration enables in-flight battery recharging, eliminating the need for ground-based charging infrastructure and offering unmatched flexibility for operators. With a retrofit-ready design, the system can be integrated into existing aircraft platforms, dramatically cutting both costs and deployment time.

Ampaire's Eco Caravan aircraft, powered by the AMP-H570, has already demonstrated over double the fuel efficiency of conventional aircraft in flight testing. Ground tests have also proven its capability to run on 100% sustainable aviation fuel (SAF), reinforcing Ampaire's position at the forefront of practical, near-term aviation solutions.


Economic and Regulatory Advantages

For regional airlines and cargo operators, the AMP-H570 delivers clear operational benefits:

📎Reduced fuel consumption

📎Lower maintenance costs

📎Extended aircraft service life

These advantages make the system not only environmentally sound but also economically attractive—especially as global emissions regulations continue to tighten.

The U.S. Air Force has also taken notice, funding research to explore AMP-H570 applications in aircraft such as the King Air. Additionally, manufacturers are evaluating both integrated parallel and series hybrid configurations of the system for future aircraft designs.


A Path Toward Certification and Deployment

Ampaire is now working toward the G-2 Issue Paper with the FAA, which will finalize the technical compliance pathway. The company aims to achieve full certification of the AMP-H570 system and the Eco Caravan by the end of 2026.

The Co-Founder and CEO of Ampaire,  Kevin Noertker said:

This milestone demonstrates that we are executing on our regulatory roadmap, removing risk for investors and customers, and accelerating real-world deployment. 


About Ampaire

Based in Long Beach, California, Ampaire develops hybrid electric propulsion systems designed to slash emissions and operating costs in aviation. The company’s mission is to provide scalable, practical electrification technologies that make clean aviation both profitable and achievable—today, not decades from now.


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