ContactThe Civil Aviation Authority of Thailand Tel: +662 568 8831 Fax: +662 576 1903 AFS: VTBAYOYX Email: aisthai@caat.or.th Email: ais@caat.or.th | AIP Supplement for Thailand | AIRAC AIP SUP A 23/17 Effective from 17 AUG 2017 to UFN Published on 06 JUL 2017 |
This section supplements the following portion(s) of the AIP: AD
With effect from 17 August 2017. Fuel dumping and In-flight management procedures will be implemented for flight intended to land at aerodromes within BKK TMA. An aircraft in emergency or other urgent situations may need to dump fuel so as to reduce to maximum landing mass in order to affect a safe landing.
North fuel dumping area: between R-335 and R-355, distance of 30 to 50 NM from BKK VOR, altitude at or above 8500 ft.
East fuel dumping area: between R-090 and R-110, distance of 30 to 50 NM from BKK VOR, altitude at or above 8 500 ft.
South fuel dumping area: between R-190 and R-210, distance of 30 to 50 NM from BKK VOR, altitude at or above 8 500 ft.
Definition
Minimum fuel: The term used to describe a situation in which an aircraft’s fuel supply has reached a state where the flight is committed to land at a specific aerodrome and no additional delay can be accepted.
Mayday fuel: Describes the nature of the distress conditions when the calculated usable fuel predicted to be available upon landing at the nearest aerodrome where a safe landing can be made is less than the planned final reserve fuel
Actions taken by pilot
The pilot-in-command shall continually ensure that the amount of usable fuel remaining on board is not less than the fuel required to proceed to an aerodrome where a safe landing can be made with the planned final reserve fuel remaining upon landing.
The pilot-in-command shall request delay information from ATC when unanticipated circumstances may result in landing at the destination aerodrome with less than the final reserve fuel plus the fuel required either to proceed to an alternate aerodrome or the fuel required to operate to an isolated aerodrome.
The pilot-in-command shall advise ATC of a minimum fuel state by declaring “MINIMUM FUEL” when, having committed to land at a specific aerodrome, the pilot calculates that any changes to the existing clearance to that aerodrome may result in landing with less than planned final reserve fuel.
Note: 1.The declaration of “MINIMUM FUEL” informs ATC that all planned aerodrome options have been reduced to a specific aerodrome of intended landing and any changes to the existing clearance may result in landing with less than planned final reserve fuel. This is not an emergency situation but an indication that an emergency situation is possible should any additional delays occur.
Note: 2.It should be noted that Pilots should not expect any form of priority handling as a result of a “MINIMUM FUEL” declaration. ATC will, however, advise the flight crew of any additional expected delays as well as coordinate when transferring control of the aircraft to ensure that other ATC units are aware of the flight’s fuel state.
The pilot-in-command shall declare a situation of distress related to the amount 33 of fuel available on board the aircraft by broadcasting “MAYDAY, MAYDAY, MAYDAY, FUEL” when the calculated usable fuel predicted to be available upon landing at the nearest aerodrome where a safe landing can be made is less than the planned final reserve fuel.
Note: 1.The planned final reserve fuel refers to the value calculated in Annex 6-Operation of Aircraft, Chapter4, item 4.3.6.3 e) 1) or 2) and is the minimum amount of fuel required upon landing at any aerodrome.
Note: 2.The words “MAYDAY FUEL” describe the nature of the distress conditions as required in Annex 10, Volume II, 5.3.2.1, b) 3.
Note: 3.Guidance on procedures for in-flight fuel management is contained in the Fuel Planning Manual (Doc 9976).
Actions taken by ATC
When a pilot reports a state of “MINIMUM FUEL”, ATC shall respond to the pilot who indicates or suggests that he is becoming short of fuel or who has declared “MINIMUM FUEL” as follows:
Inform the pilot of either:
The estimated delay if pilots are en-route to, joining or are established in holding point such as IAWPs; or
The estimated track mileage if pilots are being vectored to an instrument approach; or
Coordinate when transferring control of the aircraft to ensure other ATC units to be aware of the flight’s fuel state.
Standard phraseology
Pilot transmission: (C/S), MINIMUM FUEL
controller transmission: (C/S), ROGER [NO DELAY EXPECTED or EXPECT (delay information)
When a pilot reports a state of “MAYDAY, MAYDAY, MAYDAY FUEL". This is an emergency and the aircraft shall be given priority over other traffic in the landing sequence. The aircraft will be committed to a landing, as in the event of any delay or a go-around, there may be insufficient fuel remaining for a safe landing.
Standard phraseology
Pilot transmission: (C/S) MAYDAY, MAYDAY, MAYDAY FUEL
Controller transmission: (C/S) ROGER MAYDAY
Unit :Aeronautical Information Service Department, The Civil Aviation Authority of Thailand
Tel. : +662 568 8830, +662 568 8831
Mobile : +666 3205 8831
Fax : +662 576 1903
E-mail : aisthai@caat.or.th, ais@caat.or.th
This AIRAC AIP Supplement cancel AIRAC AIP Supplement A15/17, and will remain current until its content have been corporate in AIP-Thailand.