Atmospheric icing

September 21, 2007 - 6:05am

Cessna said it will offer a TKS “weeping wing” anti-icing system for the Cessna Grand Caravan starting next March, using a system manufactured by Aerospace Systems & Technologies of Salina, Kan. The Cessna system will include laser-drilled titanium TKS panels installed on the leading edges of the wings, wing struts and horizontal and vertical stabilizers.

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.

August 21, 2007 - 11:25am

Cessna will offer a TKS “weeping wing” anti-icing system for the Cessna Grand Caravan beginning in March, using a system manufactured by Aerospace Systems & Technologies of Salina, Kan. The Cessna system includes laser-drilled titanium TKS panels installed on the leading edges of the wings, wing struts and horizontal and vertical stabilizers.

August 9, 2007 - 11:10am

The FAA yesterday released a final rule governing certification of transport-category (Part 25) airplanes for operation in icing conditions, effective October 9. In publishing the new rules, the FAA added new material to Part 25, Appendix C, the section that details the so-called icing envelope. The new Appendix C material, however, does not address the NTSB’s desire for the icing envelope to be expanded to include larger icing droplets.

June 16, 2007 - 5:58am

Flight-testing of the Boeing 787 electro-thermal wing ice-protection system, jointly devised by Boeing, GKN Aerospace and Ultra Electronics, is to begin following completion of ground trials in the Boeing research aircraft-icing tunnel. Used for the first time in a U.S.

June 1, 2007 - 6:46am

Summer is almost upon us in the northern hemisphere, but the FAA is embroiled in two significant icing-related issues: a proposed new rule for when de-ice systems are activated and a new interpretation of the term “known icing.”

May 31, 2007 - 10:09am

The FAA last month released Airworthiness Directive 2007-10-15, which requires that operators of all 765 U.S.-registered Cessna Caravans install low-airspeed awareness systems at a cost of about $8,200 per airplane. The AD also requires that Cessna-issued AFM Supplement S1–which addresses operations in icing conditions–be incorporated into the Caravan AFM.

May 17, 2007 - 11:09am

FAA Airworthiness Directive 2007-10-15, effective June 21, requires that operators of all 765 U.S.-registered Cessna Caravans install low-airspeed awareness systems at a cost of about $8,200 per airplane.

May 3, 2007 - 11:39am

Comments are due today on an FAA draft letter of interpretation released April 3 on the meaning of the term “known icing conditions.” At press time, 82 comments had been filed, mainly by individuals.

May 1, 2007 - 12:02pm

The FAA issued a Notice of Proposed Rulemaking (NPRM) last week that, if enacted, would require manufacturers of newly certified transport-category aircraft (Part 25) to incorporate an ice-detection system. The proposal is part of an ongoing effort by the FAA and NTSB to reduce accidents as a result of icing, and it comes on the heels of an NTSB recommendation that aircraft boots be activated immediately upon the first sign of airframe icing.

 
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