Aw139 Pilot Manual
Wreckage of HEMS Leonardo AW139 EC-KJT of INAER Aviation Italia (a Babcock company) on Mount Cefalone (Credit: ANSV) The Accident Flight Operations Room 118 in L’Aquila made a telephone request for the helicopter to attend to a casualty at the base of the ski lifts at with a broken leg at 09:59 Local Time. According to a doctor on scene, they said that weather at the casualty’s location was better than the previous day, when a separate HEMS flight there had been abandoned. The duty pilot was very familiar with the Campo Felice ski facilities, as he had picked up casualties there many times (twice in January 2017 for example). The helicopter took off from at 10:06.
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On board was the single pilot and, in the cabin, a HEMS Technical Crew Member (TCM, i.e. A trained aircrewman), a mountain rescuer, a doctor and a nurse. Apart from the ski centre & hotel and the road in the valley, the terrain was blanketed in snow. Out bound the aircraft followed the SS696. En route to Campo Felice, near the town of, the helicopter encountered a weather front. The pilot circled, changed heading, initially slowed to 50 knots and then accelerated back to 100 knots.
As the aircraft subsequently approached the pick-up point the crew discussed the poor visibility. Witnesses indicate visibility was reducing with fog that “came and went”, with a 50 m cloud base and 500 m visibility. The aircraft however successfully landed at 10:16 and remained rotors running with only only the pilot aboard as the medics and TCM collected the patient. Loading HEMS Leonardo AW139 EC-KJT of INAER Aviation Italia (a Babcock company) at Campo Felice (Credit: ANSV) The helicopter took off from Campo Felice at 10:23:21 and soon took a route away from the SS696 road.
Shortly after take off the helicopter appears to have entered cloud based on comments. Witnesses suggest that the weather had deteriorated further by this point. The TCM, who was in the cabin, seemingly queried if they should land. The helicopter made several heading changes.
The TCM asked the pilot what his intentions were, getting the answer “Ehh, let’s see where we can get to “. The aircraft almost collided with terrain about this time (the minimum recorded altitude was 24 feet). The impact was avoided and the aircraft climbed to 600 feet and entered a turn. The torque values of both engines reached very high values (up to 144%) and remained very high and well beyond limits, never falling below 114%, until the final impact. After this escape manoeuvre, the helicopter flight is characterised by the ANSV as “one of significant instability of the main flight parameters”. Accident Site of HEMS Leonardo AW139 EC-KJT of INAER Aviation Italia (a Babcock company) on Mount Cefalone (Credit: ANSV) The Pilot and Training The pilot is described by his colleagues as a “serious professional”.
Aw139 Pilot Manual
At the time of the accident he had a total flight experience of 4674h, of which 3948h was on helicopters, 2748h as a helicopter commander. He had achieved 557h of instrumental flight and 694h night flight. In the prior 12 months he had carried out 9h 30′of flight, of which 4h were in the simulator. In the prior 6 months he had made 2h of IFR flight in the simulator at the in (four times that required by SPA.HEMS.130), which did include Inadvertent entry to. From then (15-16 September 2016) until the accident no other instrument experience was gained. The ANSV comment the pilot’s recent training did not meet the requirements of EASA Part.ORO.FC.202 ‘Single-pilot operations under or at night’. However night / IFR operation was not envisaged so this requirement did not apply.
However, they highlight that HEMS missions “by their nature” have a higher risk of IIMC. The pilot had flown exclusively from the L’Aquila HEMS base in recent months and worked a 7 days on / 7 days off pattern. He was on day 6 at the time of the accident. On the second day of the pilot’s duty period, 20 January 2017, the pilot (and TCM) had made four flights in response to the 18 January 2017 in which 29 died. On 19 January and, as mentioned earlier, 23 January 2017 flights had been abandoned in flight due to poor weather. TAWS The ANSV say. The operator, at the time of the accident, had a fleet of 15 AW139, of 12 of which are equipped, among other things, with the i.e.
Of these 12 equipped with EGPWS, 10 were authorized by to carry out HEMS activity. EC-KJTwas not equipped with EGPWS.
This was despite rapidly variable weather and predominantly mountainous territory at the L’Aquila base of EC-KJT. They add: it would have been numerically possible to assign at the HEMS base in Aquila one of theAW139 helicopters authorized for HEMS and equipped with EGPWS. The SPA.HEMS.140 regulation provides that the operator must ensure, within his process of analysis and risk management, that the risks associated with the HEMS environment are minimized, even through the helicopter’s level of equipment. Wreckage of HEMS Leonardo AW139 EC-KJT of INAER Aviation Italia (a Babcock company) on Mount Cefalone (Credit: ANSV) ANSV Analysis As the aircraft was airborne in 7 minutes of the call the ANSV conclude there was insufficient for an accurate assessment of the weather along the route (in particular they note there is a webcam positioned in the village of Lucoli). Although it is possible the crew had already been examining weather in the local area.
The investigators comment that the content of the call from the Operations Room 118 resulted in an “optimistic interpretation” of the meteorological situation present at Campo Felice. The ANSV conclude the pilot had a “desire to complete the emergency medical transport mission despite the visibility conditions encountered”.
The investigators highlight a number of cancelled or abandoned flight in preceding days due to weather that may have motivated pressing on, along with the pilot’s familiarity with the local area, which might have bred a degree of. They also speculate that having been on the ground for 6.5 minutes to collect the patient, the pilot may have felt an urgency to depart immediately. They note he proceeded “in conditions of visibility certainly marginal and probably below the minimum allowed by the Operational Manual and by the regulations in force for the flight in VFR” despite the TCM three times asking assertive questions during the short fatal flight.
However, the ANSV say there is no indication the pilot applied the Operations Manual procedures for Inadvertent Entry into IMC (a 180° turn and climb). After the first near collision with terrain, the ANSV believe it is “very likely that at this stage the pilot may have suffered from a ” during the avoidance manoeuvre and in particular, “the pilot’s could have been suffering from an, caused by the different accelerating components to which he was subjected, thus inducing the pilot to assume that he is in level flight instead of in turn a right”. The ANSV query regulatory and Operations Manual ambiguity on whether the TCM should have been seated on the flight deck rather than in the cabin (in the AW139, as configured, it is not possible to move between the two in flight). They view it as being advantageous for the TCM to be seated on the flight deck, however there are undoubted advantages of a TCM in the cabin with the ability to open the door when manoeuvring in confined areas and assist in emergencies.
ANSV also note their is no Flight Data Monitoring requirement for HEMS (as required offshore by EASA SPA.HOFO.145 if an is fitted). Wreckage of HEMS Leonardo AW139 EC-KJT of INAER Aviation Italia (a Babcock company) on Mount Cefalone (Credit: ANSV) ANSV Conclusions The accident was caused by the impact of the helicopter on the South-West slope of the Mount Cefalone in only partially controlled flight conditions. Significant contributory factors:. the rapid deterioration of the visibility. the decision of the pilot to continue the mission once it has been realised that the visibility would not have allowed flight in VFR. loss of situational awareness caused by probable spatial disorientation suffered by the pilot under IMC conditions. the limited instrument training of the pilot to the instrumental conduct of the flight.
the absence, in the cockpit, of the TCM, which deprived the pilot of better support ANSV Recommendations. ANSV-1 / 66-17 / 1 / A / 18 to ENAC: ANSV recommends supplying to Italian operators, in particular those engaged in HEMS activities, the appropriate clarifications regarding the correct sic application of the provisions of Part ORO.FC, ORO.FC.202 ‘Single-pilot operations under IFR or at night’. ANSV-2 / 66-17 / 2 / A / 18 to ENAC: ANSV recommends that operators be sensitized on the opportunities if the TCM takes the place of the co-pilot and the the functions deemed important to be carried out in the cabin are not carried out by the TCM, but by another appropriately trained person. ANSV-3 / 66-17 / 3 / A / 18 to ENAC: It is recommended that operators take appropriate consideration the equipment of the aircraft in their process of analysis and management of the associated risks to the HEMS environment and that ENAC is subject to assessment during surveillance on the operators. ANSV-4 / 66-17 / 4 / A / 18 to ENAC: ANSV recommends extending training requirements to OCC 118 staff specificity related to aviation, similar to what already provided, by the SPA.HEMS.135 (b), for ground personnel who collaborate with HEMS operations. ANSV-5 / 66-17 / 5 / A / 18 to EASA: ANSV recommends evaluating the possibility of providing tools for operators aimed at providing support to the decision-making activity of the commander and to carry out one supervision on the work of the crews, both in real time and later to carry out the HEMS mission. Rulemaking (UPDATE 16 June 2018) EASA issue Other Safety Resources.
Self-induced pressure and inadequate OCC support / oversight were behind a fatal US HEMS night accident were an AS350B2 departed an unprepared landing site into IMC in which an LOC-I occurred. The operator of this S-76C had insufficient resources to effectively manage safety say TSB.
The regulator had concerns but its approach did not ensure timely rectification. a near accident in Canada. In 2014 Airbus Helicopters released a remarkable 15 minute video that describes the lessons from an Inadvertent IMC incident during a HEMS flight in the US and shows the value of FDM. video and emergency response lessons from a US night accident. a New Zealand HEMS BK117 incident with training and experience lessons.
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