The House aviation subcommittee yesterday held a hearing on aircraft icing to address issues brought to light by the NTSB’s recent “Most Wanted” list of “unacceptably slow” progress on icing rulemaking.
The FAA recently issued a revised Special Airworthiness Information Bulletin–SAIB SW-08-03R1–to warn helicopter operators of the “hazards of snow and ice,” according to the FAA Rotorcraft Directorate’s Safety Management Group in Fort Worth. The bulletin, “Recommendations for Rotorcraft During Icing Conditions,” was released in 2003, and new data has been added following additional FAA testing.
Twin Commander 690C, Wray, Colo., Jan. 15, 2009–The pilot’s failure to maintain aircraft control during the landing approach, resulting in an aerodynamic stall, was the probable cause of the crash, according to the NTSB. The Board also noted that the pilot’s improper preflight planning and conditions conducive to structural icing contributed to the accident.
The FAA has issued a final rule that prohibits Part 91K, 135 and 121 operators from taking off with “polished frost”–meaning frost buffed to make it smooth–on an aircraft’s wings, stabilizers and control surfaces. The new rule takes effect at the end of this month. Previous FAA guidance recommended removing all wing frost before takeoff, but allowed it to be polished smooth if the aircraft manufacturer’s recommended procedures were followed.
The FAA yesterday issued a final rule that prohibits Part 91K, 135 and 121 operators from taking off with “polished frost”–meaning frost buffed to make it smooth–on an aircraft’s wings, stabilizers and control surfaces. The new rule will take effect on Jan. 30, 2010. The FAA already prohibits major and regional air carriers from operating with polished frost.
Coincidental to the early taste of winter weather the Northeast received in mid-October, NBAA–in conjunction with local airport user groups and state business aviation associations–sponsored a pair of cold-weather operational seminars aimed at exploring the challenges and threats presented by in-flight and ground icing, as well as runway contamination.
Ever since the crash of American Eagle Flight 4184 (an ATR 72) in Roselawn, Ind., on Oct. 31, 1994, the NTSB has been recommending that the FAA enact a new rule that the Board believes might have prevented these accidents. As a result of the crash of Flight 4184, the NTSB recommended that the FAA “prohibit the use of the autopilot” during encounters with icing conditions.
One of the founders and innovators of the TKS anti-icing system plans to launch the world’s first environmentally friendly anti-icing fluid called TKS Sustain, based on propane diol rather than the more traditional ethylene glycol. Kilfrost, exhibiting here at Booth No. 5513, has submitted the product for certification and expects to gain approval to market it this coming winter.
Twin Commander 690C, Wray, Colo., Jan. 15, 2009–The Commander, operated by J-W Operating, was destroyed when it crashed four miles from its destination of Wray Municipal Airport, killing both pilots and the passenger.
The National Air Transportation Association (NATA) has joined with other aviation associations to ask the Environmental Protection Agency (EPA) for a 60-day extension on the comment period for new proposed rules on airport de-icing fluid effluent limitations. The timing of the initial rules proposal falls within the traditional northern-hemisphere de-icing season.