(F.No. 10-9/83 AIS)

The following Circular is issued for information, guidance and necessary action.

CANCELLATION : AIC No. 36 of 1965 is hereby cancelled.







Attention of all concerned is drawn to Rule 25-A of the Indian Aircraft Rules, 1937. The Procedure and the precautions as outlined hereunder read with the provisions contained in the said rule shall be strictly followed during fuelling of aircraft.

1. (a) "The operator’s appoint a competent person (hereafter referred to as Supervisor) to supervise the fuelling operations, who will be responsible for compliance of these precautions.

  1. The operator shall furnish written instructions to the fuelling company regarding the correct procedure of fuelling and precautions to be taken for particular type of aircraft. However, in the case of aircraft weighing less than 1820 kgs (4,000 Ibs) ‘verbal instructions may be issued by the operator/owner.
  2. The supervisor shall ensure that clear path is maintained to permit rapid removal of fuelling equipment, air conditioning unit, tractors, etc., in case of emergency. Vehicles and equipment shall not be located where they would obstruct the evacuation of persons from occupied portions of the aircraft in emergency.
  3. During fuelling operations, every fuelling vehicle shall be constantly attended by, at least one competent person appointed by the fuelling company. Only competent personnel are to operate the fuelling equipment. Hand Brakes etc. should be effectively applied on vehicles before the drivers leave them. Adequate man power shall be constantly made available to shut off the flow of fuel quickly in emergency.
  4. The aircraft shall not be fuelled within 33 metres of radar equipment under test or use in aircraft or ground installations.
  5. Fuelling should be avoided during severe electric storms.

2. (a) The fire extinguishers shall be maintained to the standard recommended by the manufacturers. Adequate number of competent persons shall be readily available to operate the fire extinguishers in case of fire.

  1. Fuelling zone of precautionary area is to be regarded as extending to 15 metres radially from aircraft fuelling point, and fuelling equipment in case of Class ‘A’ fuels (fuels having flash point below 22ºC) and 6 metres in Class ‘B’ fuels (fuels having flash point in the range between 22ºC and 66ºC) when being transferred.

  1. Whilst fuelling is in progress any servicing, maintenance, testing and repairing activities within fuelling zone, shall be subject to the following conditions :-

  1. Aircraft electrical, radar, radio system, shall not be operated and switches relating thereto shall remain in ‘Off’ position where Class ‘A’ fuels are being transferred. However, where only Class ‘B’ fuels are being transferred electrical equipment and radio may be permitted to be checked but maintenance shall be limited to the replacement of complete unit.
  2. Operation of radar shall not be permitted during fuelling:

Provided that this clause shall not apply to electrical switches controlling the following circuits :-

      1. Power and light essential for fuelling operations.
      2. Minimum amount of cabin lighting.
      3. Steady parking lights.

However, such switches shall not handled during fuelling operations.

  1. Battery trollyes may be used within the fuelling zone provided that the connection is made to the aircraft and switch operated only before the filler cap is removed and the circuit remains unbroken during fuel transfer.
  2. No air craft maintenance shall be conducted which may provide a source of ignition for fuel vapours.
  3. Radio equipment on vehicles attending an aircraft shall not be operated within fuelling zone.
  4. Aircraft in-built combustion heaters and similar equipment which may cause fire hazards shall not be used.
  5. Flashlights used during fuelling at night shall be of the explosion proof type.

4. (a) Passengers may be permitted to embark, disembark or remain in cabin subject to the following conditions :-

(i) Agreement is reached between the aircraft operator and airport authorities in advance.

    1. An attendant shall remain on duty in the cabin of the aircraft. He shall ensure that no smoking takes place or other source of ignition is allowed to occur and that he shall assist in the removal of passengers in the even of fire.
    2. The passenger-leading ramp shall be correctly positioned at the cabin exit door and adequate provision shall be made to maintain the equilibrium of the aircraft in case all passengers attempt to leave by one exit.
    3. In case of marine aircraft, adequate means of water transport shall be stationed at the cabin door.

  1. The handling of freight and baggage to and around the aircraft shall not proceed simultaneously with fuelling unless adequate precautions have been taken to eliminate fire risk.

5. (a)

(i) In the event of fuel spills over 2 metres in any direction or of continuing nature, fuelling of aircraft, loading and servicing, embarking of passengers, etc. must Cease and the engine of ground power supply unit must be stopped but the electrical circuits and switches should on no account, be touched except for the purpose of stopping the power unit. The Aerodrome Fire Station should be immediately notified. Prior to recommending fuelling and other activities, action must be taken to clean the spilt fuel. Fuel must not be washed into sewers or drains.

    1. In case of lesser spilts, the fuel should be immediately covered with sand or dry earth, which should be removed to a safe place, at the earliest opportunity for disposal.

  1. When any part of the under-carriage assembly has become abnormally heated during landing or taxiing, the aircraft shall not be fuelled until the heat has dissipated. Fuelling equipment should not be positioned until the supervisor has satisfied himself that there is no risk from heated components.
  2. Fuelling operations shall cease when a turbo jet aircraft manoeuvres so as to bring the rear jet out-lets within 43 metres of the fuelling equipment or the aircraft fuelling point and vent system.

For this purpose "Fuelling" shall be regarded as including defuelling, aircraft tank Calibration, aircraft fuel flow tests and draining of aircraft tank.