ETOPs + MNPs Flashcards
Master document
Operational flight plan - must be available in flight
Position plotting
Check where you are against the operational flight plan
Plot the a/c posn at certain times
When should you check your posn
At each waypoint and 10mins after
SLOP
Strategic lateral offset procedures
Random selection by the crew of 1 of 3 tracks
Centreline
1nm right
2nm right
Offsets to the left can’t be made
Altimeter cross checks should be carried out
When passing waypoints or at intervals not exceeding 60mins - whichever is the earlier
On reaching a new FL
Must agree within +/- 200
In MNPs airspace must make a report
Whenever a vertical deviation of 300ft or more occurs
Must report when leaving/reaching a new FL
Flying above MNPs airspace FL
Above = FL420
Below = FL285 (280)
If the system fails while on an MNPs route - less than 2 systems you climb and descend
500ft to get a different level within RVSM
Oceanic ATC clearances
40mins before entry
20mins before entry for Reykjavik area - entering from Scottish/Stavanger areas
A/d close to OCA - may need one before dep
3 elements to an oceanic clearance
Route - Sep by 60nm - 1 degree - reduced lateral sep = 30nm and can go to 25nm on some days
Mach no - 10min sep
FL - 1,000ft sep
HF comms
Conducted on single sideband HF freq in 6 ground radio stations
Does not require much power
Ground stations have no executive ATC authority
Lower HF at night - less than 7 MHz - higher during the day - more than 8
A/c normally get a primary and secondary freq
SELCAL and what does it do
Selective calling
A/c are given a call code - 2 letters A to S excl I,N and O - code is placarded
Obviates the need for the use of HF radio
Need to do a SELCAL test before entry
Satcom communication diff between routine and emerg in where they go
Routine - made to ground stations.
Emerg - direct to OCA centre
When out of range of VHF stations what can be used for air to air comms
- 45
121. 5 should be monitored by all a/c operating in the NAT region
Posn reports - NATS routes
Should be made at sig points or when required by ATC
Contains lat and long except when flying over named reporting points - all times should be expressed in 4 digit UTC
SSR codes for NATS airspace
Code 2000 - domestic squawk should be used for 30mins after entry - 10mins for tango 9 routes - vice versa for the way out
Operate on mode A/C
TCAS 7.1 req
All turbine engine a/c with MTOM of more than 5,700kg and more than 19 pax must carry ACAS 2 or TCAS 7.1 for NATS
NATS inflight contingency procedure
If clearance cant be obtained
Leave initial route by 90* to 45* right/left
Fly offset by 15nm
Fly at a level which differs from those normally used by 500ft if below FL410 or by 1000ft if above FL410
Contact ATC ASAP
If able to maintain assigned FL after deviating from original track - contingency procedure subsequent actions
Climb/descend 1000ft if above 410
Climb/descend 500ft if below 410
Climb 1000 or descend 500ft if at 410
If unable to maintain assigned FL after deviating from original track - contingency procedure subsequent actions
Minimise rod when leaving original track
Expedite a descent to feasible FL - depending if you are above 410 or below 410
Deviation around severe wx in NATS
Try to get a revised clearance
If not - established comms on the air to air freq and deviate away from the organised route system - switch on lights and watch out for conflicting traffic
Deviations of less than 10nm - remain at ATC assigned level
10 or More - initiate a level change of 300ft
Deviation north - descend - south climb
Inform ATC when wx deviation is not req - return to last assigned FL when the a/c is within aprox 10nm of centreline
