NAT Doc 007 January 2017 Important Changes

[767Capt]

http://flightservicebureau.org/wp-content/uploads/2017/02/NATDoc007-2017Edition-OPSGROUP.pdf

Anyone noticed the important changes on this revision especially the contingencies?
Careful reversing course in case of a diversion.

[Basil]

Interesting. Seems more codified than I recollect.
Now retired so, not that it matters to me, but:

f) For deviations of greater than 10 NM, when the aircraft is approximately 10 NM from track,
initiate a level change of 300 ft.
If flying generally Eastbound (i.e. a magnetic track of 000° to 179°) and deviating left
(ie north) of track then descend 300 ft; if, however, deviating right (i.e. south) of track
then climb 300 ft.
If flying generally Westbound (i.e. a magnetic track of 180° to 359°) and deviating left
(i.e. south) of track then climb 300 ft; if, however, deviating right (i.e. north) of track
then descend 300 ft.

Why 300' and not 500'?

[Hotel Tango]

So that if somebody screws up there's still 400ft?

[ATC Watcher]

Almost HT, I would say because of the crossing tracks , if everybody diverts at same time ( i.e. due Wx ) on crossing you have someone 300ft down a FL , some opposite 300ft up their FL , so 400ft separation between them . Makes sense.

[Basil]

Aahso, Got it (I think). That's why you lucky pax aren't flown by 75yo s ;)

[john5432]

Do you know the exact date in when NAT Doc 007 was published in January, and also is it effective immediately or a certain future effective date?
Thank you.

[767Capt]

Interesting. Seems more codified than I recollect.
Now retired so, not that it matters to me, but:



Why 300' and not 500'?

300' is for greater than 10NM weather deviation required,
500' for other deviations requiring exiting tracks.
Must read the able vs unable to maintain altitude section carefully.
Also notice "should" vs must... I guess they wanted to give the PIC some leeway to be able to deviate from published procedure in case of fire/smoke etc..

[tubby linton]

Ifalpa briefing document.http://ifalpa.org/downloads/Level1/Safety%20Bulletins/Air%20Traffic%20Management/17SAB02%20-%20Turnback%20Procedures%20in%20the%20NAT.pdf?platform=hoots uite

[fourgolds]

Did I miss something . The IFALPA bulletin ( see link) , says 500 ft ?

[Hotel Mode]

300ft is for weather deviations. The IFALPA link is for in flight contingencies.

[TKFIT]

Thus i cant find this publication on original icao website, do you know when these changes will take effect? Because it is still the 2016 version is on icao.int website.