FLYING LESSONS for October 30, 2025

Topics this week include: >> Spiraling in >> One way out >> OpSpecs for the masses

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FLYING LESSONS uses recent mishap reports to consider what might have contributed to accidents, so you can make better decisions if you face similar circumstances.  In most cases design characteristics of a specific airplane have little direct bearing on the possible causes of aircraft accidents—but knowing how your airplane’s systems respond can make the difference in your success as the scenario unfolds. So apply these FLYING LESSONS to the specific airplane you fly.  Verify all technical information before applying it to your aircraft or operation, with manufacturers’ data and recommendations taking precedence.  You are pilot in command and are ultimately responsible for the decisions you make.     

FLYING LESSONS is an independent product of MASTERY FLIGHT TRAINING, INC.

This week’s LESSONS

From an NTSB preliminary report:

Something terrible happened, quite quickly. The preliminary report suggests the engine was producing power and the airframe impacted intact, the airframe breaking apart when it hit with a few lighter parts being scattered but not in a way indicative of an inflight break-up. About two minutes after leveling from the descent at 4000 feet and shortly after being instructed to change frequencies to Memphis Center, the airplane spiraled left, reversed direction and spiraled right to impact.

Local news adds more details:

Flightaware.com captures often do not accurately show the location of precipitation echoes at the time a flight ends, but the record suggests areas of moderate and heavy precipitation were in the general area at the time of the crash, and the altitude and speed records suggest turbulence during the descent. METAR data cited by the NTSB is consistent with a stormy day affecting localized areas differently. I’m sure the NTSB will focus closely on weather, including what the pilot should have been able to know, as it investigates this tragedy.

What might we learn with the limited information available?

  1. Areas of precipitation, even moderate to heavy echoes, do not always mean thunderstorms and turbulence. In general, however, reflectivity plotted as yellow or red (or more) on radar correlate to extreme hazard. If lightning discharge activity is plotted even green precipitation echoes are dangerous.
  2. Thunderstorms don’t always mean instrument meteorological conditions (IMC). Especially in the Great Plains where I live, it’s not unusual at all for airports to report MVFR (marginal VFR) or VFR when thunderstorms are nearby. Watch for notes about lightning visible from the airport. 
  3. METARs and TAFs describe weather within five statute miles (4.4 nautical miles) of the reporting point. Conditions reported as VC, in the vicinity, are between five and 10 sm (8.7 nm) from the reporting point. “Distant” is anything visible that is at least 10 sm away.
  4. METARs and TAFs, then, describe localized weather only. You’ll need to look at other observations and forecasts to see the big picture. 
  5. A steep spiral is the natural outcome for a pitch-stable airplane at banks into the realm of the overbanking tendency. The proper pilot response is to level the wings in a rudder- coordinated maneuver while reducing power to resist a nose-up trim response and pushing forward on the elevator control as much as necessary to prevent pitching up into a stall. Practice spiral entries and recoveries with an instructor, visually and “under the hood,” so you won’t drive the airplane into a spiral in the other direction as you attmpt to recover.

It might be that the pilot lost control in turbulence, and perhaps overcorrected in a way that reversed the direction of turn and could not recover before impact. It could be that an autopilot, if installed, malfunctioned, or that it disengaged and the pilot did not realize it was no longer controlling the airplane. The pilot may have been incapacitated, perhaps even knocked unconscious if turbulence slammed his head into the ceiling or against the side window. Something as simple as changing frequencies combined with other factors might have led to loss of control, or incorrectly changing frequencies may have introduced and combined with other distractions.  

The METAR data alone looks quite acceptable for a rated-and-current instrument pilot flying a well-equipped airplane. I flew in lower weather than that last weekend. But airport reports are pinpricks in the overall weather picture. There’s a lot more to consider. And if the risk is acceptable, tighten down your seat belt and shoulder harness to guard against becoming incapacitated if you hit your head. 

Readers, what other LESSONS does this very preliminary report suggest to you?

Questions? Comments? Supportable opinions? Let us know at [email protected].

Debrief

Readers write about recent LESSONS:

Frequent Debriefer Tom Black writes about last week’s Debrief:

Wise strategy, Tom. Thanks for teaching it to us.

Another frequent Debriefer and FLYING LESSONS supporter John Whitehead address last’s week’s LESSON on single-pilot emulation of multipilot crew interaction:

Reader, simulator instructor and retired jet pilot Charles Llyod adds:

Operations Specifications (OpSpecs) are operator-specific rules approved by regulators and carrying the force of regulation for air carrier certificate holders (in the U.S., Parts 135 and 121 operations). The pilot who does not have a specially-approved OpSpec document, Parts 61 and 91 of the Federal Air Regulations (or their international equivalents) are our OpSecs. Add other personal limits such as duty day limits—I use 14 hours from alarm clock to engine shutdown—and you have a personal code of conduct that frames your response to challenging conditions and gives you an objective standard to more easily make go/no-go decisions. Thanks for relating your experience, Charles.

My frequent Debriefer and anonymous student pilot wraps it up this week:

I only say “mythical” because performance charts—takeoff and landing—are based on target speeds for crossing a 50-foot obstacle, while real-world obstacles are rarely 50 feet tall. The FAA’s Airplane Flying Handbook has this to say about Maximum Performance takeoffs:

As an example, the Short Field takeoff and landing charts both specify a speed to fly at 50 feet above the runway:

The C172S handbook—like most POHs—provides data for short field operations but no charts for “normal” takeoffs or landings

My point is that maximum performance calls for attaining the appropriate reference speed as you cross an obstacle or, in the absence of a significant obstacle, at 50 feet above ground. Other than that “the book” gives no specific guidance on speeds or altitudes for takeoffs and landings.  

More to say? Let us learn from you, at [email protected]

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Flight Instructor Hall of Fame Inductee

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FLYING LESSONS is ©2025 Mastery Flight Training, Inc.  For more information see www.thomaspturner.com. For reprint permission or other questions contact [email protected].  

Disclaimer

FLYING LESSONS uses recent mishap reports to consider what might have contributed to accidents, so you can make better decisions if you face similar circumstances. In most cases design characteristics of a specific airplane have little direct bearing on the possible causes of aircraft accidents—but knowing how your airplane’s systems respond can make the difference in your success as the scenario unfolds. Apply these FLYING LESSONS to the specific airplane you fly.

Verify all technical information before applying it to your aircraft or operation, with manufacturers’ data and recommendations taking precedence. You are pilot in command, and are ultimately responsible for the decisions you make.