In Flight Memory Items And Contingency Flashcards
What to do if unable to continue the flight in accordance with the ATC clearance in the North Atlantic (NAC)? Ie what are the special procedures for inflight contingencies in the North Atlantic (NAT)?
What are the in flight contingency procedures for NAT (North Atlantic) ?
Transmit “Mayday” or “Pan-pan” and/or send a CPDLC emergency (Mayday) or urgency (Panpan) message.
Turn to the right or left by at least 30 deg to intercept and maintain a parallel 5nm offset. Considerations for direction of turn:
- OTS or route structure
- Alternate airport
- SLOP being flown
- Terrain
- Other aircraft
Maintain FL if able or minimize rate of descent
Watch for conflicting traffic both visually or using TCAS
Turn on all exterior lights
Squawk 7700
Broadcast on 121.5 and 123.45 for nearby aircraft. (CS, nature of distress, intention, position (OTS track or ATS route) and FL),
ONCE ESTABLISHED on a parallel, same direction track with 5nm offset then either:
- descend below FL290 and establish a FL that differs by 500’ from a FL normally used, proceed as required by the operational situation, persevere to get ATC clearance
- establish a FL that different by 500’ (or 1,000’ if above FL410) from a FL normally used, proceed as required by the operational situation, persevere to get an ATC clearance.
Ref: OM-C/12 Aerodrome Categorisation/Authorisation And Area Briefings/12.2 Area Briefings / 12.2.4 North America and North Atlantic/12.2.4.6 Airspace Structure/Limitations/12.2.4.6.1.2 Special Procedures for Inflight Contingencies
What are the in flight contingency procedures for China?
To add
What are the in flight contingency procedures for Australia/Indian Ocean?
To add
What are the actions to be taken if a revised ATC clearance for weather deviation CAN’T be obtained in the North Atlantic (NAT)?
If deviations for weather of LESS THAN 5nm are required then maintain flight level.
For deviations 5nm or greater: when approximately 5nm from route, change level by 300’: If deviating towards the pole then descend. If deviating towards the equator then climb.
If possible, deviate away from an organised track system.
Broadcast on 121.5 and 123.45 (CS, FL, position, OTS track or ATS route and intention).
Look out for conflicting traffic visually and on TCAS.
Turn all exterior lights on.
After deviation, return to assigned FL when approximately 5nm from route.
Keep trying to contact ATC for clearance.
Ref: OM-C/12 Aerodrome Categorisation/Authorisation And Area Briefings/12.2 Area Briefings / 12.2.4 North America and North Atlantic/12.2.4.6 Airspace Structure/Limitations/12.2.4.6.1.1 Weather Deviation Required: Request ATC Clearance for Weather Deviation:
What to do if weather deviation is required and you are unable to obtain ATC clearance in China?
To add
What to do if weather deviation is required and you are unable to obtain ATC clearance in Australia/Indian Ocean?
To add?
What to do, in general, if you require weather deviation and you are unable to obtain ATC clearance?
To add
What are contingency procedures in China for aircraft requiring rapid descent?
Give position to ATC and request descent.
If an emergency is declared (“Mayday”) descent may be commenced without ATC clearance but ATC must be notified ASAP and a report must be submitted on arrival.
If unable to contact ATC and rapid descent required then proceed as follows:
- Turn RIGHT 30 degrees to establish parallel track with 10km (5nm) offset
- When established 5nm offset right of track: descend (or climb apparently??) as appropriate
- When appropriate, return to the cleared FL.
Meanwhile…
- Broadcast on 121.5 and 123.45 at suitable intervals with CS, FL, position and intentions
- Look for other aircraft visually and on TCAS
- Turn all exterior lights on
Ref: LIDO-Route Manual/China/3.36.12 Emergency/3.36.12.2 Contingency Procedures for Aircraft Requiring Rapid Descent (China Country RAR C-120)
What are the In-Flight Contingency Procedures for Aircraft Requiring Rapid Descent, Turn-back or Diversion in Oceanic Airspace in the Sanya FIR
If unable to obtain a revised ATC clearance:
Turn LEFT or RIGHT by 90 DEGREES (direction determined position relative or organised tracked or route or route system, terrain, traffic, offset etc).
If able to maintain level: set up offset by 25nm and climb or descend 500’
If unable to maintain level: minimise ROD while turning and set up offset by 25nm then maintain a FL that differs to normal FL by 500’
Diversion across the flow of adjacent traffic: Before commencing a division across the flow of adjacent traffic, set up 25nm offset and then climb or descend to a level above or below where the majority of traffic operates (ie normally above FL400 or below FL290), and then maintain a level that differs from those normally used by 500’. if unable to climb or descent significantly (ie outside the FL290-FL400 layer) then fly at a level that differs by 500’ from those normally used.
Ref: LIDO-Route Manual/China/3.36.12 Emergency/3.36.12.3 In-Flight Contingency Procedures for Aircraft Requiring Rapid Descent, Turn-back or Diversion in Oceanic Airpsace in the Sanya FIR (China Country RAR C-130)
Predictive windshear during the takeoff roll.
If a predictive windshear WARNING is triggered during the takeoff roll, what must the captain do?
The Captain must reject the takeoff for a predictive windshear warning during the takeoff roll.
Ref: FCTM / Procedures/ Normal Procedures / Supplementary Procedures / Adverse Weather /Windshear / Operational Recommendations
Note: A prediction windshear warning can be: SURV WINDSHEAR AHEAD WINSHEAR AHEAD: with the following indications:
- W/S AHEAD (in red) on PFD and associates
- “WINDSHEAR AHEAD WINDSHEAR AHEAD” aural alert, and
- location of the windshear on the ND (yellow circle with two red bars indicating direction?)
Predictive windshear during the takeoff roll:
The indication of a windshear CAUTION is: SURV MONITOR RADAR DISPLAY. (Approach only??!!)
W/S AHEAD (in amber) OJ PFD
What is the difference in terms of the initial actions when a TA (“Traffic.. traffic”) sounds between the basic TCAS procedure and the AP/FD TCAS procedure?
In the case of a Traffic Advisory (“Traffic.. traffic”):
- Basic TCAS: The PF calls out: “TCAS, I have control” and gets ready for an RA
- AP/FD TCAS: The PF annunciates the FMA mode change, I.e. TCAS (in blue) on the second row of the vertical column, i.e. “TCAS Blue”, and anticipates an RA.
