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Marginal Decisions

This image from the NTSB's preliminary report into this accident depicts the Learjet's flight path and altitudes, and supplies annotations of communications during the approach.
Gemini Sparkle

Key Takeaways:

  • The Learjet crash highlights the critical risks of cancelling IFR prematurely and attempting visual patterns at night in marginal VFR conditions, especially in complex terrain where instrument procedures are restricted or prohibited.
  • Pilots must resist "get-home-itis" and complacency, prioritizing adherence to established procedures, setting personal minimums, and understanding how environmental factors (night, clouds, terrain) can compromise visual navigation.
  • It is crucial to understand and comply with TERPS, avoid premature IFR cancellation in marginal weather, and always maintain options like diverting or executing a go-around, recognizing that safety outweighs perceived inconvenience.
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In late December 2021, I was giving upset recovery training to a student. We were done with our work in the practice area and were returning to base at Montgomery-Gibbs Executive Airport in San Diego. Weather included unlimited visibility and scattered clouds. We picked up the ATIS and were heading toward the airport. A few minutes later, seated in the rear seat, I heard my student come over the intercom to confess that he didn’t really know where we were or how to get back home. This student has hundreds of hours of flying experience in the San Diego area, and I regard him as a serious and highly competent pilot. Still, the scattered clouds were obscuring some of the landmarks we subconsciously use to orient ourselves, and this made pilotage difficult.

A few days later, at the nearby Gillespie Field Airport (KSEE), a Learjet 35 crashed as it attempted to land. The Lear’s crew cancelled IFR on short final, and was flying a VFR pattern to a landing on another runway when the airplane collided with terrain. All four occupants aboard this aeromedical flight—two flightcrew members and two flight nurses—died in the accident. Of course, NTSB and FAA investigations have just begun, and we still do not know the specific cause of this crash. Still, the facts we know reveal several factors that may have contributed to the accident. Considering them can help us avoid similar accidents in the future.

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