Accident Probes

During oil and filter change, chips and large metal pieces were found. During an annual inspection, the engine oil quick drain valve was blocked with debris. About a dozen pieces of what appeared to be piston ring pieces were removed. While performing a condition inspection, a crack was found on #6 intake. After takeoff, the crew noted engine vibration and lack of power. Inspection revealed excessive oil in the engine area and on the aircraft belly. After a precautionary landing due to power loss, a compression check showed zero on cylinder A4.

Continued VFR into IMC accidents have been part of the general aviation accident scene since before I started flying more than 50 years ago. Some headway in reducing these accidents was made when private pilot applicants were required to demonstrate basic instrument proficiency beginning in the early 1960s. Cockpit technology has also improved, with even basic training aircraft equipped for instrument flight and devices such as autopilots and weather data link becoming more prevalent. On the other hand, there is a much higher percentage of high performance aircraft in the general aviation fleet than 50 years ago, and more non-instrument-rated pilots are flying longer distances in higher performance aircraft. As a result, the prevalence of VFR-into-IMC accidents is still very high.

Weather-related accidents have always been a big issue for general aviation. Their number has not been declining appreciably, as demonstrated by the graph at right, adapted from the most-recent AOPA Air Safety Institute’s 24th Joseph T. Nall Report, which discusses general aviation accidents in 2012. During the eight-year period from 2005-2012, the number of fatal […]

A pilot reported hearing a Mayday call from another airplane, stating that the engine had failed and he was attempting to land on the east side of a canal. No further communications were received from the accident airplanes pilot.

This months accident easily could have resulted from perhaps the most insidious preflight challenges: interruptions. Being interrupted in the middle of, say, refueling or checking the engine oil can have severe consequences. The trick for me always has been to start over after the interruption is resolved. If this means leaving passengers in the FBO lobby until Im ready, or missing a clearance void time, so be it. If it means answers to a passengers questions must be postponed, thats okay, too. Interruptions during a preflight inspection are insidious because they allow us to consider a task complete when it isnt. Well never know if an interruption during the preflight inspection helped cause this months accident, but its as good an explanation as any.

The typical flight in a personal airplane is uneventful. We take off, fly the mission and land. Every now and then, though, stuff happens. Its one of the reasons flying has been called hours and hours of boredom punctuated by moments of sheer terror, a description it shares with many other activities. In fact, most of us have our own tales to tell, stories of airborne drama weve experienced personally or heard directly from the people involved.Ive been doing a lot of flying recently, spending quality time at airports and remote landing strips with other pilots and their airplanes. Along the way, I picked up several there I was narratives from pilots who made serious errors in judgment, plus others who experienced what can only be described as bad luck. Sharing these narratives with other pilots helps add to our knowledge of what can happen, how we should prepare for it and what we can do in response. In reflecting on them, I soon realized they all have a common element. And since I was the pilot for one such event, I can assure you: When an event begins, it often happens very quickly, providing little warning.

Its that time of year again in the Northern Hemisphere, when in-flight icing can be a threat. Depending on where you are and where youre going, icing may be a rare possibility during the upcoming season. It also can be a sure thing. Evaluating the possibility of in-flight icing is part of the equation-its potential impact is another. A pilot might completely overlook icings impact on other aircraft systems, including the powerplant(s). Carburetor icing should be a topic familiar to most pilots, but induction system icing can be an afterthought. And while there are systems we can activate to minimize icings impact on the induction system, we must remember they exist and know how to activate them.

Every month, Aviation Safety publishes aircraft accident reports in order to give our readers the broadest perspective on aviation and the risks it involves. Our goal is to pass along a message of caution and safety as much as one of thrill and freedom. That’s why we think you should hear about recent mishaps from around the country. Here are some gathered from the National Transportation Safety Board.

I remember the first time I flew in less-than-VFR conditions. I had a very fresh private pilot certificate and was en route in a Skyhawk, probably at 3500 feet msl. There was a shower between me and my destination, dropping visibility to less than three miles. My heading would take me under it and through the rain shaft. There was no traffic around.I could almost see what was on the other side before entering it, so I kept on going. For the experience, of course. I had ground contact throughout, and there was clear air 90 degrees and 15 seconds to my right. Coincidentally, I wasnt far from this months accident site.

At about 1745 Central time, the airplane lost engine power shortly after takeoff. The airplane impacted trees and was substantially damaged. The solo private pilot was seriously injured. Visual conditions prevailed.The FAA reported the pilot was doing touch-and-goes. The engine lost power and the airplane impacted trees and terrain about a mile southeast of the airport. The airplanes empennage separated from the fuselage, and there was heavy damage to the right wing and fuselage.