Ice

January 29, 2009 - 3:59am

As airports across the U.S. wage their annual struggle against winter weather, business aviation operators may soon find themselves familiar with a new de-icing method. Forced-air de-icers, which use high-volume, low-pressure air to help strip contamination from flying surfaces, have been used to augment the effect of glycol on airliners at major airports for years, but the business aircraft community has been slow to embrace them.

January 29, 2009 - 3:47am

Pilots should “activate boots as soon as the airplane enters icing conditions,” according to a safety alert released in December by the NTSB. The alert (SA-014) is yet another attempt by the Board to persuade pilots that there is no such thing as ice bridging and that pilots should not wait for ice to build to one-quarter to one-half-inch thickness before inflating boots in icing conditions.

January 28, 2009 - 7:51am

Pilots should “activate boots as soon as the airplane enters icing conditions,” according to a safety alert released in December by the NTSB. The alert (SA-014) is yet another attempt by the Board to persuade pilots that there is no such thing as ice bridging and that pilots should not wait for ice to build to one-quarter to one-half-inch thickness before inflating boots in icing conditions.

October 13, 2008 - 12:02pm

Cessna Citation 500, Beverly, Mass., March 17, 2007–The NTSB determined the probable cause of the Air Trek Citation icing accident was the inadequate guidance

September 10, 2008 - 12:39pm

Fuel starvation caused by accumulated ice crystals was apparently responsible for the engine power loss on British Airways Boeing 777 G-YMMM, according to an interim report issued by the UK’s Air Accidents Investigation Branch. The power loss and subsequent nonfatal crash occurred on G-YMMM’s approach to Heathrow on January 17.

December 11, 2007 - 6:20am

As I prepared to write this column the television and radio news programs were reporting on the recent spate of business aviation accidents. One of the widely reported accidents that caused considerable concern at the NTSB was the November 28 crash of the Challenger 601 in Montrose, Colo. In this accident the NTSB is investigating airplane performance issues, including the possibility of upper-surface wing ice contamination.

December 10, 2007 - 7:09am

As a result of its ongoing investigation into the November 28 fatal takeoff accident of a Challenger 604 in Montrose, Colo., the NTSB has issued a special alert involving the detection and effects of ice accumulation on aircraft wings.

November 29, 2007 - 8:08am

Last month the FAA issued a Special Airworthiness Information Bulletin (SW-08-03) containing “recommendations for rotorcraft during icing conditions.” The SAIB describes “procedures to reduce the probability of an engine in-flight shutdown due to ice and snow ingestion,” including special precautions during winter pre-flights and ground power settings.

October 4, 2007 - 5:36am

Sikorsky’s S-92 has successfully completed the artificial icing requirement of the FAA’s icing-certification program, thus preparing the aircraft for its final all-weather-operations certification phase. It has already completed more than 80 percent of the requirements for icing certification and begun natural icing trials, with several successful natural icing events flown to date.

August 29, 2007 - 8:52am

The FAA last month released a final rule governing certification of transport-category (Part 25) airplanes for operation in icing conditions. The new rule, which takes effect October 9, effectively added new material to Part 25, Appendix C, the section that details the so-called icing envelope.

 
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