Accident Probes

Over the years, Ive spent way too much time as self-loading cargo on airliners. Regardless, Im always curious about whats going on in the front office but rarely get a clear glimpse. One exception is when some last-minute maintenance is performed or connection problems result in some passengers arriving late to the gate. Invariably, Captain Speaking will come on the PA and apologize for the delay, commenting that well be ready to go as soon as we get the final paperwork. What is the captain talking about?

Dont you hate it when this happens? November 12345, I have an amendment to your clearance…advise when ready to copy. Then ATC gives you the barely pronounceable name of a waypoint you never heard of. Youre given a re-route around restricted airspace or a military operations area (MOA) that just went hot. Or youre making a short positioning flight in IMC, and have to make rapid-fire GPS flight plan updates and heading changes when youre cleared for a approach just as youre leveling off from climb.

A year and a half ago, it dawned on me that what I most enjoyed about my previouscareer as a science communications consultant was when I got to commute to visit clients in my faithful Cessna 180. With some 1500 hours in my logbook-accumulated primarily on those business trips-I sent out my rsum to two area commercial operators. In response, I got two job offers. Wow. What a game-changer for me. I jumped into the Part 135 world with both feet and left my previous career behind. Now, with more than a year under my belt flying for money, I have been reflecting on how profoundly the move from Part 91 to Part 135 has affected my risk management experiences and choices.

After maneuvering away from the airport, the Piper returned and executed a touch-and-go landing. Radar data indicate the airplane climbed to 900 feet msl at 80 knots of groundspeed before radar contact was lost. Witnesses observed the airplane flying normally, then saw the left wing separate from the fuselage, which impacted a field. Preliminary examination revealed the left wing main spar exhibited cracks from metal fatigue extending through more than 80 percent of the lower spar cap, and portions of the forward and aft spar web doublers. The right wing also exhibited fatigue cracks in the lower spar cap at the same hole location extending up to 0.047-inch deep. The 2007 airplane had accumulated 7690 flight hours since new. Weather at 0953 included wind from 260 degrees at seven knots, 10 statute miles of visibility and few clouds at 25,000 feet.

For many pilots, the transition likely wont be noticed. Popular electronic flight bag (EFB) apps like ForeFlight and Garmin Pilot long ago went beyond what is/was available on DUATS alone and pulled in data and imagery from a variety of sources. That will continue. And the many other aviation weather services available from Jeppesen, The Weather Company and other providers arent going anywhere. In fact, if it wasnt for the success of DUATS, those other services might not exist, or might not be as ubiquitous as they are.

Pilot disconnected the (S-Tec 50) autopilot and hand-flew for several minutes. Shortly after initiating a descent to land, the ailerons began to seize. It took five to 10 seconds to lose aileron authority, followed by elevator authority. Pilot forced to make emergency landing with only a few degrees of operable aileron and elevator, but landed without damage or injury. Examination revealed the autopilot had re-engaged and the servo clutches had frozen.

• Twenty Miles?
• Flight Review Options
• Inop Equipment
• Accident Stats
• Approach Gates

The 20-mile clearance policy is a safe number and probably easy to stipulate, but scale and definitions make it challenging. For every fully visible and developed severe thunderstorm, there are even more smaller cells or building storms that may or may not grow to thunderstorm level. Sometimes a curtain of rain is just a curtain of rain. Other times, it can be hiding something much bigger due to the lurking cumulonimbus that has built up above the overcast.

An instrument approach procedure is often described as a series of windows, or gates, extending from the final approach fix (FAF) to the missed approach point (MAP). Stay within the ever-narrowing vertical and lateral limits and youll arrive at the MAP on glide path and centered on the inbound course. Its far less common to extend this concept backward from the FAF through the terminal area to the en route environment, and forward from the MAP through the missed approach to the holding fix.

Fly personal airplanes long enough and youll eventually have to deal with an open door or window. Usually its a cabin entry door that someone forgot to fully latch. Usually. Sometimes its a baggage door, and there goes your luggage, sliding down the runway at 70 knots. The thing is, inadvertent door or window openings typically occur at or shortly after lifting off from a runway, because thats when the changes in air pressure in and outside the airplane tend to find any weak spots.