Accident Probes

During a routine inspection, the technician noted the strobe lights would remain on after the switch was selected off. Troubleshooting revealed the switch to be defective. Removing and disassembling the switch revealed the solder joint holding the braided wire had broken and welded itself to the line post. Switch was replaced IAW AD 2008-13-17 in May 2009.

Catastrophic FailureAugustClassic CFITMayCloak Of InvincibilityDecemberFifteen MilesJuneMinimum EquipmentMarchMissing Flight PlanOctoberMostly MundaneJanuaryRunning The ScudAprilSpin Recovery FailureSeptemberThe Impossible TurnFebruaryToo Much Automation?NovemberUnsecured CargoJuly

Most modern comm radios can tune frequencies with 8.33 kHz channel spacing, which currently is required only in high altitude airspace in Europe (Code Y). It would not be necessary to indicate that in the U.S. Further, Im not sure we can file a performance-based navigation (PBN) code as they require FAA approval. The closet reference is AC 90-100A-maybe someone can interpret this for Part 91 (non 91K) operations.

Everyone aboard the Beech Model 17 Staggerwing in which I was a passenger had been to the Driggs, Idaho, airport (KDIJ) dozens of times, perhaps even hundreds. Driggs Reed Memorial Airport is one of the more scenic airports in the country, much less Idaho. But as we approached, we could tell something was amiss. The pattern was busier than usual, and we heard a call for Runway 22. All three of us knew with confidence that Driggs single runway is laid out 03-21, but a second and third plane called in approaching the same, seemingly wrong runway.

Most of us fly aircraft powered by piston engines, a basic technology dating back to the late 19th century. Meanwhile, the modern air-cooled aircraft piston engines basic configurations hasnt changed since before WWII. Given the power output for their weight and fuel consumption, theres no better solution. But hundreds of metal parts going through thousands of heat cycles year after year eventually find a way to break.

I get kind of worked up when Im unsure. Last year, I hauled a load out of a backcountry strip (Sulphur Creek, Idaho, ID74) that included a 320-pound elk, my brother and me, plus all our gear for eight days in my Cessna 180. Field elevation was 5835 feet, and I remember that the takeoff used up a lot of the 3300-foot runway. I went through the numbers over and over before I left and when we got home, I confirmed the loading cargo put us right at gross weight on takeoff.

The Boeing 727-200, operating as Northwest Airlines Flight 6231, departed John F. Kennedy International Airport in New York, N.Y., at about 1926 Eastern time on December 1, 1974. A ferry flight with only crew aboard, the 727s destination was Buffalo, N.Y., a great-circle distance of 261 nm. After takeoff, the aircraft climbed to 13,500 feet msl and leveled off for about 50 seconds, accelerating from 264 knots to 304 knots.

the left airspeed tape simulates the pilot’s chosen configuration while the right one depicts what the pilot would have seen with de-icing equipment engaged.”

Except for the main wreckage area, there was no noticeable damage to the fields corn stalks. The cockpit, engine cowling and a majority of the fuselage were consumed by fire, although the wings and empennage were mostly intact. Witnesses reported hearing the engine sputtering, and then heard a thud and saw a fireball. They did not observe the airplane in the air.

Theres no question in my mind that a good autopilot system tends to dull a pilot to what the airplane is doing and what it may be telling him or her. Im fortunate to have a really good one in my traveling airplane and use it most of the time when Im in cruising flight. It will fly a heading, follow a magenta line, climb/descend to a preset altitude at a rate of my choosing and shoot coupled ILS or GPS approaches.