The NTSB determined the probable cause(s) of this accident to include: "The pilot's loss of airplane control while operating in instrument meteorological conditions
with only a partial instrument panel due to a failure of the airplane's vacuum pump.
First, the Moonless Night Letter does not define "instrument meteorological conditions
provides precision lateral and vertical guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high intensity lighting arrays to enable a safe landing during instrument meteorological conditions
(IMC), such as low ceilings or reduced visibility due to fog, rain, or blowing snow",he explained.
Actual instrument approaches are flown when instrument meteorological conditions
In addition to the aeronautical products required for flight in instrument meteorological conditions
, the latest version of the popular app for iPad and iPhone now includes Nav Canada aeronautical information and navigation products essential for planning flights in or flying Canada in visual meteorological conditions.
IMC club is coaching, training, mentoring and helping pilots to fly in actual instrument meteorological conditions
An instrument landing system (ILS) is a ground-based instrument approach system that provides precision guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high-intensity lighting arrays to enable a safe landing during instrument meteorological conditions
(IMC), such as low ceilings or reduced visibility due to fog, rain, or blowing snow.
The approach was made in instrument meteorological conditions
, indicating low visibility due to cloudy or bad weather conditions at that time.
While on departure in Instrument Meteorological Conditions
(IMC), Lt Tompkins experienced a left Airframe-Mounted Accessory Drive (AMAD) failure with associated electronic and hydraulic warning lights.
According to data from the Aircraft Owners and Pilots Association (1996), despite the introduction of a number of safety-related initiatives over the last twenty years, a significant proportion of GA accidents continue to involve visual flight rules (VFR) into instrument meteorological conditions
(IMC; a clearer description of these terms is provided below).
The T-34C continued in a northeast direction into the canyon, now under instrument meteorological conditions
. Shortly thereafter, the pilot commenced a level, reverse turn at 20-25 degrees angle of bank to exit the canyon.