L5 - Emergency and Safety Procedures25-11-2005 | |
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L5 - Emergency and Safety Procedures25-11-2005 | |
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These are some basic procedures adapted to the FS community. They must not be used for real navigation An additional information is available in L6-Emergprocs (join-up pattern, interception...) 1 - Emergency - definitions: Two states of emergency have to be considered : a) Distress : A condition of being threatened by serious and/or imminent danger and of requiring immediate assistance. Examples : ditching, crash landing imminent, total engine failure...
b) Urgency : A condition concerning the safety of an aircraft or some persons on board but which does not required immediate assistance. Exemples : lost, fuel shortage, partial engine failure, navigation system failure... 2 - Emergency - messages : a) Distress : Mayday, Mayday, Mayday, this is "aircraft callsign" then transmit as many of the following elements as necessary and as time permits : - aircraft position and heading - flight level, altitude or height - aircraft type and POB (number of persons on board) - nature of emergency - any other relevant piece of information (weather, endurance, intentions...)
b) Urgency : Pan, Pan, Pan, this is "aircraft callsign" then transmit as many of the following elements as necessary and as time permits : - aircraft position and heading - flight level, altitude or height - aircraft type and POB (number of persons on board) - nature of emergency - any other relevant piece of information (weather, endurance, intentions...) 3 - Emergency - radio frequency and squawkcode : The procedure is the same for both distress and urgency situations :
* if under radar control, use the frequency and squawkcode in use at the time.
* in other situations, squawk 7700 and contact on 121.500 (with FS and SB, this frequency has to be set on COM 1 and will be available on text mode only - 121.500 is not available via Roger Wilco). 4 - Emergency - cancellation : When an aircraft is no longer in emergency, a cancellation message must be transmitted on the frequencies used for the emergency message. 5 - Radio failure : In FS, we could consider a Roger Wilco breakdown as a radio failure. However, you should be able to contact the controller on text mode via SquawkBox on the ATC frequency or with the .msg command. But if for any reason, both voice and text modes are inoperative, here is what you can do.
a) IFR : - Squawk 7600 (if equipped)
- If VMC, maintain VMC and land at the nearest suitable airport. In real life, you should report your arrival to the appropriate ATC unit as soon as possible. In FS, let's say you will try to fix your problem (connection, RW IP...) and advise the controller when the situation is back to normal.
- If unable to descend and land in VMC : * proceed according to your flightplan and regulate your flight in order to land at the estimated time of arrival (ETA). (say you took off at 20:38z and indicated 2h10min enroute time in your flight plan, your ETA is 22:48z). * if having received ATC instructions, follow those instructions and when reaching the clearance limit, resume the flight according to your flight plan as above. * if under approach control, follow last ATC instructions (or see paragraph c below) then execute a published instrument approach procedure.
b) VFR : - Squawk 7600 (if equipped)
- Maintain VMC and land at the nearest suitable airport. In real life, you should report your arrival to the appropriate ATC unit as soon as possible. In FS, let's say you will try to fix your problem (connection, RW IP...) and advise the controller when the situation is back to normal.
c) Approach charts : - If any, follow the instructions indicated on instrument or visual approach charts. |
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