An emergency AD requires certain Learjet 45 horizontal stabilizer actuator assemblies to be replaced with new assemblies before further flight. The directive (AD 2003-06-51) was issued March 20 after a Learjet 45 in Australia reported a severe vibration followed by a rapid nose-down pitch. Investigation revealed that the acme screw–the primary load path of the actuator–was fractured, and the backup assembly had failed.
Northern Airborne Technology, a British Columbia-based subsidiary of the Chelton Group, last month introduced a lightweight satcom system that routes calls through the Globalstar network of 48 low-earth-orbit satellites. The system consists of the STX100 transceiver, PTA12 dialer/adapter and a Globalstar antenna, and provides coverage over about 80 percent of the earth, including polar regions and some mid-oceanic regions.
The first Bombardier Global Express to be certified in Australia has started operation with Melbourne, Victoria-based Visy Board. The aircraft replaces a Gulfstream IV.
Weather satellites equipped to detect emergency locator transmitters helped rescue an estimated 1,500 sailors, hikers, downed pilots and others around the world last year, according to the National Oceanic and Atmospheric Administration. Its satellites, along with Russia’s Cospas satellites, form an international search-and-rescue system. NOAA said the 171 U.S.
Despite the fundamental role of clouds in weather, there is much we don’t know about them. NASA intends to do something about that under a 24-month, satellite-based mission scheduled to launch next year. Called CloudSat, the program is aimed at better understanding how clouds affect climate in terms of their thickness, height, absorption, and water and ice content.
The FAA has issued an emergency AD on Bombardier CRJ700s that limits center-tank fuel quantity to 1,500 pounds at takeoff and flight paths to within 30 minutes of an alternate airport. The directive (2003-02-51) cites instances of cracked fuel feed lines and damaged transfer couplings due to vibration and fuel-line misalignment in the center tank. The problem could cause the center tank to overfill and leak, the FAA said.
As of November 25, Indonesia implemented reduced vertical separation minimums (RVSM) between FL 350 and FL 390. After an initial three-month evaluation trial and favorable safety assessment, flight levels possibly will be expanded to include FL 310 to FL 390.
The FAA, in collaboration with the AOPA Air Safety Foundation, recently updated and reprinted its popular guidelines on icing.
European Union (EU) transport ministers have approved the Single Sky plan for harmonizing European air traffic management (ATM), clearing the way to meet an implementation deadline of Dec. 31, 2004.