Meteorology

March 28, 2007 - 6:16am

Predicting the weather is a little like trying to pick up Jell-O before it sets. There are a lot of molecules up there, all interacting in less than predictable ways. It is a little surprising, then, that the head of one of the world’s foremost weather-data specialists says forecast accuracy is about to see vast improvements over and above what today’s computer modeling is capable of generating.

March 26, 2007 - 7:26am

Bombardier CL-600-2B19, Rapid City, S.D., Jan. 17, 2004–The NTSB determined that the left wingtip of the Skywest CRJ hit the runway because of the copilot’s failure to maintain control and the captain’s delay in initiating remedial action. Factors contributing to the accident were the low ceiling and low visibility due to fog, and the aircraft’s deviation from expected performance because of airframe icing.

March 23, 2007 - 12:23pm

Using a new Web-based tool, operators who typically fly below Class A airspace can now obtain icing forecasts up to 12 hours in advance of their flight. The FAA tool provides a color weather map and a flight route display of icing potential from 3,000 to 18,000 feet. The user can select forecast times from three-, six-, nine-, and 12-hour intervals to help plan their routes.

March 22, 2007 - 6:19am

A new NASA study claims that man-made cirrus clouds formed by commercial jet engine exhaust might be responsible for increased surface temperatures detected in the U.S. between 1975 and 1994.

Climate data shows that cirrus cloud cover over the U.S. has increased by 1 percent per decade, and the report says the rise is likely due to commercial air traffic.

March 12, 2007 - 9:09am

The National Air Transportation Association (NATA) and the Occupational Safety and Health Administration (OSHA) have teamed on a program to reduce and prevent worker exposure to bad weather hazards in and around airport cargo and mail ramp areas, as well as other areas associated with aircraft maintenance operations.

March 12, 2007 - 9:07am

The National Air Transportation Association (NATA) and the Occupational Safety and Health Administration (OSHA) have teamed on a program to reduce and prevent worker exposure to bad weather hazards in and around airport cargo and mail ramp areas, as well as other areas associated with aircraft maintenance operations.

March 7, 2007 - 9:50am

Manufacturers of very light jets (VLJs) will be affected by new Advisory Circular 23.1419-2D, which provides guidance in meeting Part 23 requirements for obtaining approval to fly into icing conditions. Comments on a draft of the circular are due by March 6. The advisory will supersede all previous policies related to ice-protection systems on Part 23 airplanes, as well as an advisory circular on contaminated-tailplane stalls.

February 7, 2007 - 9:15am

In the spirit of the season, the NATA Safety First program has made available its aircraft de/anti-icing training module, designed specifically for line techs, ground handlers, flight crews and dispatch personnel. The interactive, online training provides the latest and safest de/anti-icing procedures available. NATA urges personnel to review critical issues such as training, procedures and responsibilities annually.

February 1, 2007 - 10:24am

Operators of all U.S.-registered Challenger 600s, 601s and 604s and Canadair Regional Jets, which are derived from the business jet, must incorporate flight manual revisions to ensure that before takeoff the “wing leading edge and upper wing surface are completely free of ice, frost, snow or slush,” under a new AD. The FAA directive (AD 2005-04-07) followed an identical AD from Transport Canada.

January 31, 2007 - 10:51am

Bell 206B3, Atlantic City, Wyo., Aug. 23, 2004–The Hawkins and Powers Aviation pilot was filming and had completed a “high groundspeed” pass when he encountered what he called wind shear and a “15- to 20-knot tailwind” while maneuvering close to the ground. The helicopter did not respond to control inputs and crashed, rolling over, crushing the forward fuselage and substantially damaging the helicopter.

 
X