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Vfr visibility requirements1/2/2023 ![]() TC indicated that the regulatory actions required to institute these changes would require extensive consultation with the aviation community as a normal part of the rule-making process. In response to the TSB's visual flight rules (VFR)-into-instrument meteorological conditions (IMC) safety study, published in December 1990, Transport Canada (TC) noted that implementation of many of the recommendations regarding VFR would result in a major change of the concepts in the conduct of visual flight operations. TSB assessment of Transport Canada's response to Recommendation A91-22 (June 1992) This working group will also review this recommendation and will submit a response to Recommendation A91-22 in conjunction with the responses to recommendations A90-65 and A90-66. This TSB study recommended that visibility minima be established for visual flight rules (VFR) that will allow pilots to retain control of their aircraft by outside references (Recommendation A90-65) and that VFR weather limits for commercial operations in uncontrolled airspace be increased (Recommendation A90-66).Ī VFR working group, with industry representation, has already been established within the Department to address the recommendations on VFR operations from this study. Transport Canada officials have concluded that this recommendation regarding visual limits in uncontrolled airspace is similar to the recommendations made by the Board in their special study of VFR Flight into Adverse Weather (TSB 90SP002). Transport Canada agrees that the regulations prescribing visual limits for any phase of flight operations should provide an adequate margin of safety for the manoeuvres being carried out. Transport Canada's response to Recommendation A91-22 (April 1992) Because the VFR weather minima in uncontrolled airspace can be lower than the instrument flight rules (IFR) minima, it is possible that a VFR aircraft, conducting essentially the same manoeuvring as an IFR aircraft, may be operating with an inadequate safety margin. TSB Recommendation A91-22 (November 1991)Ī deficiency relating to the visual flight rules (VFR) weather minima was identified. The Board concluded its investigation and released Aviation Investigation Report A89W0232 on 13 November 1991. The investigation determined that, while conducting the visual approach in conditions of low visibility and low cloud, the pilot did not maintain sufficient airspeed, and the aircraft stalled and entered a spin. All five occupants sustained fatal injuries. The aircraft struck the ice-covered surface of a lake and sank in 35 feet of water. While turning from downwind to final approach, the aircraft pitched nose down and crashed about one kilometre short of the runway. After conducting two unsuccessful instrument approaches, the pilot attempted a visual approach, at low altitude, to the Sachs Harbour Airport. The accident aircraft, a Piper PA-31T3, was on a flight from Holman Island to Sachs Harbour, Northwest Territories. Air transportation safety recommendation A91-22 Reassessment of the response to TSB Recommendation A91-22 VFR weather minima in uncontrolled airspace ![]()
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