Max talks with Rob Mark about the fatal crash of Cirrus SR22T N17DT near Shelbyville, Indiana, and why this accident is so instructive for any pilot who flies approaches at low altitude with high workload. The NTSB's probable cause centers on inadequate airspeed and an aerodynamic stall, but the real value is in the flight data that shows how the airplane got there: low power held for an extended period, repeated stall warnings, multiple ESP interventions, and flaps that ultimately remained retracted until impact.
This episode matters because it's rare to have this level of detail. The NTSB recovered onboard data that captures dozens of parameters multiple times per second—far more than you usually get from ADS-B alone. Max describes how the NTSB published extensive graphs and also released a spreadsheet of recorded parameters. The spreadsheet didn't include position data, so Max combined it with ADS-B track points and interpolated the missing locations to create a second-by-second reconstruction. The result is a cockpit-style view that shows airspeed, pitch attitude, power, flap position, stall warning activations, and ESP engagement together—so you can see the chain of events, not just the endpoint.
The key factual finding: the engine was operating normally. The "partial engine failure" theories that circulated right after the crash don't hold up against the final report and recorded parameters. Instead, power was pulled back to a very low setting—about 15%, roughly 10–11 inches of manifold pressure—and held there. That's close to a landing-power setting, which means airspeed and energy must be managed carefully to avoid drifting toward stall, especially if configuration changes.
The second key finding is configuration. The flap record shows the flaps briefly at about 50% and then transitioning to 0%. Later, the data shows the flaps again toggling, but ultimately the airplane ends up with flaps retracted and stays that way until the crash. That detail is not cosmetic—stall speed is strongly affected by flap setting. In a low-power approach, retracting flaps increases stall speed and requires a different pitch picture and energy plan. If the airplane is flown as if it has more lift available than it actually does, airspeed can silently bleed away.
As the airplane slowed, the recorded data shows repeated stall warning activations in the final minute, and ESP (Envelope Stability Protection) engaging multiple times. ESP is designed to help discourage pilots from exceeding the envelope by nudging pitch and roll back toward safer values, but it can't create airspeed or altitude. It's a guardrail, not an autopilot that can save a low-altitude slow-speed situation once the margin is gone. In the reconstruction, stall warnings and ESP engagement cluster around the periods when the airplane is slow, pitched up, and operating near the edge of the envelope.
Witness observations align with a low-altitude stall sequence. A driver on a nearby interstate described the airplane as very low, appearing to "hang," then making a sharp turn. The witness observed a wing drop and rapid rocking from one wing vertical to the other before the aircraft disappeared behind trees and a fireball was seen seconds later. The NTSB's recorded data similarly shows the airplane slowing near stall speed followed by a loss of control consistent with a stall at low altitude.
The practical lessons are direct and transferable to any airplane, not just a Cirrus. First, treat any stall warning on approach as a command—not a suggestion. You don't troubleshoot while the airplane is approaching the critical angle of attack. Your first move is to reduce angle of attack (unload) and regain airspeed. Second, make configuration errors harder to commit and easier to catch. Flap position is not a "set it and forget it" item when workload is high. Use callouts, verify indications, and confirm the pitch picture matches the configuration you think you have. Third, recognize that "low-power" plus "slow" plus "turning" is the classic trap. Bank increases stall speed, and when you're low, you don't have the altitude budget to recover from a stall break and wing drop.
Finally, this episode reinforces a mindset: the accident wasn't one bad second; it was a sequence of small choices and small drifts that added up to zero margin. The data shows multiple warning opportunities—stall horn and ESP events—before the final loss of control. The goal for listeners is not to judge the pilots. It's to build habits that make this chain harder to start, easier to detect, and easy to abandon early. When the airplane is telling you it's running out of margin, believe it—then reset the approach while you still have altitude to spare.
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There’s always something new happening above the clouds, and Aviation News Talk-Pilot Stories, Safety Tips & General Aviation News is where those stories come together. Host Max Trescott, with four decades of experience flying general aviation aircraft, doesn’t just report the news-he breaks it down from a pilot’s perspective. This podcast serves as a regular hangar session, blending the latest updates with practical knowledge you can use. You’ll hear detailed technical discussions on systems like the G1000 and Perspective glass cockpits, learn the intricacies of flying GPS approaches, and get safety tips that are relevant whether you’re just starting out or have thousands of hours in your logbook.
As an active flight instructor and a Platinum Cirrus CSIP, Max brings his daily experiences straight from the cockpit to each episode. He regularly answers listener questions and hosts interviews that delve into the real-world challenges and joys of flying. The conversation is grounded in a deep commitment to safety and education, aiming to help both current and future pilots navigate the skies with greater confidence. Tune in for a straightforward, informative take on general aviation that feels like getting advice from a trusted mentor. Each episode of this podcast is built on a foundation of real-world experience, designed to inform and engage anyone with a passion for flight.
Author: Max Trescott | Aviation News Talk Network
Language: English
Episodes: 422
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