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  1. Summers are already here and with it the associated hazards for flying. Civil Aviation fleet is fortunate to have large percentage of highly professional, experienced and knowledgeable ex Military and Civil helicopter pilots. However, it is essential to refresh the memory of the Operators, Pilots, Engineers, technicians and other associated personnel about the hazards associated with summer operations and the precautions which need to be taken to ensure safe and efficient conduct of operations.
  1. Very High Temperatures, 40 to 45 Degree Celsius plus and sudden development of severe thunder/Hail/Andhi/dust storms are some of the serious hazards to Aviation during summer months.
  2. Following precautions need to be observed during summer months:-
  • Thorough met briefing and proper route planning becomes very essential during summer months due to unexpected sudden changes in weather conditions.
  • Dust storms, thunderstorms and hail storms are quite common during this period. Keeping yourself updated about the weather and monitoring it closely will go a long way in avoiding unfortunate accidents.
  • Turbulent weather causing updrafts and down drafts can add to the fatigue factor to aircraft/helicopter as well as crew and discomfort to passengers. Plan your   flight altitude (preferable higher levels) keeping these aspects in mind.
  • Updrafts on the windward side of the hills and downdraft on the leeward side can pose serious hazards and pilots should factor this aspect while crossing hills.
  • Very widespread poor visibility conditions over a prolonged duration due to dust storms particularly in Northern India must be taken into consideration while planning flights. Diversionary helipads/airports must be planned with due care.
  • Hailstorms during the summer season are quite common and can cause serious damage to aircraft/helicopters while flying as well as when parked in the open. It should be ensured that weather radars are serviceable and used for avoiding the hazardous areas. Proper covers should be used to cover particularly the soft areas of the aircraft/helicopter when parked in the open.
  • Bird activity in morning, evening hours and during day time at altitudes above 2000 ft(Birds also like cool higher altitudes during summer months) demands alertness on the part of pilots.
  • Proper parking and lashing of the aircraft/helicopters is much more essential during summer months. Kal baisakhi with violent weather conditions in Chhota Nagpur hills in Orissa and adjoining areas are serious summer hazards and due precautions while flying and parking must be taken.
  • Flying in Northern India, particularly Rajasthan,Haryana, Punjab is most demanding in summer months due to very high temperatures, severe turbulence and poor visibility over prolonged periods due to dust storms.  Take due precautions.
  • Fuel consumption increases during summer months and fuel planning should be done accordingly.
  • Lightening is another serious hazard during summer months. Avoid thunderstorm areas. Confirm and ensure proper bonding of the Aircraft/Helicopter.
  • Ensure that the aircraft/helicopter is properly bonded during refueling operations. Lack of proper bonding has caused number of explosions of aircraft and helicopters all over the world.
  • Boiling of battery acids due to high temperatures, degradation of seals and other such material which may lead to leakage of oil/lubricants etc should be kept in mind.
  • Adverse affect of high temperatures and dust during summer months requires parking of aircraft/helicopters inside hangars/with proper covers.
  • Aircraft/Helicopter metal parts become very hot during summers and due precautions must be taken by aircrew as well as ground crew while working/operating the helicopter. Use of proper gloves is recommended.
  • Frequent and close monitoring of the parameters of Engine, MGB, AGB, TGB and other equipment on board the aircraft/ helicopter is recommended due to prevailing high temperatures. Degradation of electronic equipment is also quite likely during summer months. Proper storage/protection from heat when the aircraft, helicopters are parked in the open is essential.
  • Density altitude is considerably high during summer months. Power available from the engines also is degraded due to high temperatures. Hence, the load carrying capability of the Aircraft/Helicopter is reduced and should be given due consideration while planning the flight.
  • Ensure that there are no loose articles in the vicinity of the aircraft/helicopter which can fly and damage the aircraft/helicopter due to strong wind conditions.
  • Do not park aircraft/helicopter in the close vicinity of trees, poles, buildings and other obstructions which may get uprooted during storms and damage the aircraft/ helicopter.
  • Ensure that your aircraft/helicopter is not parked in areas which have dry grass fields in the vicinity since chances of fire to dry grass are very high during summer months and strong winds may blow the fire towards the aircraft/helicopter.
  • Ensure that the helipads are sprayed with water to prevent dust from blowing due to down wash. Brief the concerned staffs to ensure water spray just 15 Mts to half an hour before take off or landing of helicopter since the surface gets dried very fast and chances of dust being kicked up are very high.
  • Hot and humid climatic conditions add to the fatigue factor of the air as well as ground crew. This aspect must be kept in mind. Adequate rest and sleep in a cool comfortable place, commuting in AC vehicles, plenty of fluid intakes, moderate consumption of alcoholic beverages for those who like their chhota peg are some of the suggestion for consideration.
  • Always keep adequate supply of water and cold beverages on board the aircraft/helicopter to cater for unforeseen contingency.
  • Ensure that the passengers are properly briefed with particular emphasis on turbulence and check the compliance of use of seat belts during flight.
  • Brief the ground liaison staff to make suitable arrangements for crew rest and recuperation particularly for operations from helipads.






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