The diversion of two 737 aircraft to an alternate airport due to inclement weather at the intended destination did not result in increased monitoring by ATC. As a result of this process, Airservices amended the AIP and MATS to reflect that SPECIs would no longer be broadcast to pilots if an ABS (such as AWIS) was available. Occasionally the destination weather deteriorates, necessitating a diversion. FIS in this context is: a method of receiving aviation weather and other operational data in the cockpit that augments traditional pilot voice communication with FAAs Flight Service Stations (FSS), ATC facilities, or Airline Operations Control Centers. Alternate translations, inconvenient texts, dogmas and theologies that didnt fit.all were suppressed or censored. Civil Aviation Regulation 1988 (CAR) subregulation 257(4) specified that if an element of the meteorological minima for landing is less than that determined for the aircraft operation at the aerodrome, the aircraft must not land at that aerodrome. This TTF forecast that the fog would now remain until 0930. The MATS, current as at 15 March 2007, indicated that FIS was to be provided to all aircraft that were being provided with an ATC service, or were otherwise known to the relevant ATC unit. However, this reduced their options after the unexpected need to divert from Adelaide to a suitable alternate destination. This field is for validation purposes and should be left unchanged. As the TAF had a 30 per cent chance of fog and the TTF issued at the same time forecast no deterioration, they elected not to pass the amended TAF to the crew of Velocity1384through ACARS. At this time the aircraft was about 156 NM (289 km) to the east-north-east of Adelaide Airport. In the meantime, Airservices has updated the Manual of Air Traffic Services to ensure dissemination of weather information from locations with an Automatic Weather Information Service should that service be unavailable. During the telephone call with the company meteorologist, the BoM supported the content of the 0800 TTF that the fog would clear at 0900. The captain was the pilot flying and the first officer (FO) was the pilot monitoring. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 66 F. I wonder if this isnt a psychological ploy to train people to over estimate temperature 30C is going to feel like 33C all the time, phew its hot ! Mildura Weather Forecast, VIC 3500 - WillyWeather. Under Part 4, Division 2 (Investigation Reports), Section 26 of the Transport Safety Investigation Act 2003 (the Act), the ATSB may provide a draft report, on a confidential basis, to any person whom the ATSB considers appropriate. Mildura Observations. The ABS and the on-request service remained as described in the previous version of the AIP. (i) other activities likely to affect safety. In this instance, that would have increased the risk of the starvation of fuel to the No.2 engine late in the approach or on landing due to the low fuel level in the No.2 main wing tank at that time. The B737 is equipped to conduct area navigation Global Navigation Satellite System (RNAV GNSS) approaches, which are classified as non-precision approaches. User Guides Weather Link to Mildura Observations on BoM, or for more detailed weather and climatic conditions log in to Order Water. The closing date for feedback is 29 January 2016. At the time that Velocity 1384 departed Brisbane, the TAF current for their arrival into Adelaide forecast fine conditions. About 5 minutes after take-off, the crew sent a request through ACARS for the current Automatic Terminal Information Service (ATIS)[21] at Adelaide. It is also worth noting that the separation workload is generally greater than normal when weather disrupts the usual flow of traffic. How did they design a probe to match a glass thermometer without such a comparison and at which site? A standard ground aid to landing, comprising two directional radio transmitters: the localizer, which provides direction in the horizontal plane; and the glideslope, for vertical plane direction, usually at an inclination of 3. The device they use is not a thermistor it works sort of similar to that by variation of resistance with temperature but is called a platinum resistance thermometer. The TAF also included TEMPO periods between 0500 and 1000 in which the cloud base was forecast to reduce to 600 ft AGL. At 0948 the crew of the Dash-8 asked Qantas 735 for their assessment of the weather. Concurrently, the TTF for Adelaide showed light winds with few clouds with no significant changes expected over the forecast period. The Hazard Alerting service is provided by ATC and provides pilots with information that is assessed by ATC to be of an unexpected and critical nature, and could assist pilots to avoid hazardous situations. At that stage, the No. In response to this occurrence the ATSB issued a safety recommendation to Airservices. VIC Weather & Warnings; Warnings Summary; Forecasts; Melbourne Forecast; . Although no safety issue was identified by the ATSB, the Bureau of Meteorology advised of the following safety action in response to this occurrence: Although the TTF and TAF are forecasts for the same aerodrome, they convey different information concerning the probability and timing of meteorological phenomena. The BoM, however, claims that temperature measurements from electronic probes are nevertheless comparable with measurements from mercury thermometers because the BoMs purpose-designed probes closely mirror the behaviour of liquid-in-glass thermometers, including the time constant. Web. They simply shout louder the same flawed (or worse) story. This section also provided guidance on what actions to carry out if an in-flight fuel check indicated the expected fuel remaining on arrival at the destination was insufficient. There is no regulatory requirement to carry alternate aerodrome fuel in the case of a code grey forecast and they are not routinely referred to by short haul flight crew or in the construction of flight plans for short haul domestic operations. You should read the important information in these notes. What was unusual about the occurrence involving the A320 was that the advection of fog moved in from the north at a greater speed than the surface wind. Short haul domestic operations, particularly those under 90 minutes duration, were provided with updated weather and operational information on a workload permitting basis. At the time the amended TAF was issued at 0700, Velocity 1384 was at FL 400 in the cruise, about 150 NM (278 km) from Brisbane. In addition, the section relating to the responsibilities of officers exercising their best judgement and initiative to assist pilots was removed from the section relating to the provision of flight information services. An AERIS is a continuous broadcast of routine aerodrome weather reports (METAR[24]) from selected airports around Australia. Given that the bureau has installed these probes in over 500 locations around Australia, you would assume that the proper comparative tests would have been extremely thorough, and performed at various sites of temperature extremes before they were widely introduced. Distribute short AIREPs originated by general aviation pilots to: the MET office responsible for MET watch over the area, the briefing office associated with the area. Additionally, a review of forecast retrievals for the period up to 2 hours prior to arrival found that 0.09 per cent of the time weather predicted above the alternate minima actually deteriorated below the landing minima. The Bureau have consistently said I am raising a non-issue: that there is no difference between the measurements from mercury thermometers and their electronic probes while never providing any actual reports or data to back-up this claim. The estimated time of arrival at Adelaide was 0920. This transmission was captured on Velocity 1384s cockpit voice recording. - Improve the accuracy of forecasts in relation to predicting the onset and cessation times for thunderstorms and below minima conditions at airports; - Result in developing a less conservative forecast approach for significant weather events (with below minima conditions); - Improve forecaster responsiveness in amending forecasts after weather events have passed; Although no safety issue was identified by the ATSB, Virgin Australia Airlines Pty. In other words, considering the forecasts that did not predict conditions below the alternate minima (0.09 per cent), and all observations below the landing minima (0.99 per cent), in the period 20092013, 10 per cent of the time that the observations were below the landing minima at Mildura Airport, those conditions were not forecast (0.09/0.99). The 0158 amended TAF for Mildura Airport was available to both flight crew and predicted a temporary deterioration (TEMPO) of the weather. accuracy of aviation meteorological products in Australia. In relation to the use of observation reports for in-flight planning, CASA noted that weather observations are not a legal instrument to determine if an alternate should be held or for fuel planning, unless the observation has a trend appended to it (eg TTF). Differences in pump outputs between the tanks would then result in the No. Their arrival at Mildura Airport in the now deteriorated weather meant that they had insufficient fuel to divert to another airport. In response, in December 2008, Airservices conducted a Safety Case Assessment and Reporting Determination (SCARD), which was required whenever: changes to service levels, procedures or equipment, which will affect the performance, functional or technical specification of a system or service; and organisational changes affecting safety accountabilities. The ATSB examined the training and guidance material available to air traffic controllers relating to the provision of air traffic services. They considered this was a sufficient buffer if the fog did not clear by 0900. Maps and tables of average conditions for locations across Australia are also available. While conditions deteriorated after Qantas 735 landed, in different circumstances, the weather may equally have improved sufficiently to allow Velocity1384to hold, before landing in conditions above the minima. An automated pre-recorded transmission indicating the prevailing weather conditions at the aerodrome and other relevant operational information for arriving and departing aircraft. The provision of FIS under this system is similar to that provided by Airservices, in that it is primarily pilotinitiated (or upon request). Therefore, crews may have been alerted on more than the 117 occurrences identified. It seems like the record was in better hands when nobody knew its importance they were just keeping the records for agricultural and meteorological history sake. These covered SIGMET and weather advisory information, such as moderate/severe icing. Most broadcasts are continuous and the information is updated every minute. set your location The objective of this service is to contribute towards the safety, regularity and efficiency of air navigation. 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