NOT SUITABLE FOR NAVIGATION

[privateer]

Why are there so many NOTAMS in the CZVR and CZEG FIR for unsuitable airways? Some sort of lack of responsibility going on at NavCanada? I am baffled.

110933 CZVR VANCOUVER FIR
CZVR V301 NOT AUTH FOR VOR NAV BTN YYD AND XT
1109271427 TIL APRX 1112281800
110935 CZVR VANCOUVER FIR
CZVR J591 BTN HUH AND LW NOT SUITABLE FOR VOR NAV
1109271420 TIL APRX 1112281800
110938 CZVR VANCOUVER FIR
CZVR V309 BTN YZP AND PR NOT SUITABLE FOR VOR NAV
1109271429 TIL APRX 1112281800
110939 CZVR VANCOUVER FIR
CZVR J504 BTN YDC AND YYC NOT SUITABLE FOR VOR NAV
1109271420 TIL APRX 1112281800
110941 CZVR VANCOUVER FIR
CZVR V317-440 BTN YZP AND YJQ NOT AUTH FOR VOR NAV
1109271420 TIL APRX 1112281800
110975 CZVR VANCOUVER FIR
CZVR J486 FM YRM TO YKA NOT SUITABLE FOR VOR NAVIGATION
1110111400 TIL APRX 1112281800
111749 CZEG EDMONTON FIR
CZEG J540 BTN YQL AND QW NOT SUITABLE FOR VOR NAV
1109271410 TIL APRX 1112281800
111750 CZEG EDMONTON FIR
CZEG V321 BTN YZF AND YHY NOT SUITABLE FOR TACAN NAV
1109271418 TIL APRX 1112281800
111753 CZEG EDMONTON FIR
CZEG J486 FM YEG TO YSM NOT SUITABLE FOR VOR NAVIGATION
1109271420 TIL APRX 1112281800
111755 CZEG EDMONTON FIR
CZEG V317 BTN FARNS AND HOWZR NOT SUITABLE FOR VOR NAV
1109271421 TIL APRX 1112281800
111759 CZEG EDMONTON FIR
CZEG J504 BTN YDC AND YYC NOT SUITABLE FOR VOR NAV
1109271428 TIL APRX 1112281800
111761 CZEG EDMONTON FIR
CZEG J486 FM YRM TO YKA NOT SUITABLE FOR VOR NAVIGATION
1109271420 TIL APRX 1112281800
111913 CZEG EDMONTON FIR
CZEG V21 BTN SELUM AND CALLY NOT SUITABLE FOR VOR NAVIGATION
1110220315 TIL APRX 1201201800

[linecrew]

Actually, if I had to guess, I'd say it's quite the opposite of what you're thinking in terms of a of lack of responsibility going on at NAVCANADA. They likely determined that, for whatever reason, the signal strength/reception of the navaids in those parts of the airways are lower than the acceptable limits for IFR nav. Getting NOTAMs out to let us know would be a logical first step since these issues won't get resolved overnight.

[privateer]

Ok, I am not trying to start any pissing contest with NavCanada, but if what you are trying to tell me is true then why hasn't the signal strength been improved? It seems like a lot of VOR's. It looks more like they haven't been able to do the regulatory review in time so they issue a NOTAM and it's like some sort of MEL for them. But too me it seems like they are falling short of what they were paid to do. If there is another reason speak up

[wingandaprayer]

Quick possible explanation. Most VORs are monitored from central locations. If a monitoring light goes from green to red or orange, a notam is issued until a tech can get out to the site to have a looksee. The problem then has to be identified and fixed. If a new part is necessary, often those need to be ordered in. Then it has to be tested to see if it's within reasonable limits.

[privateer]

So if the VOR is unreliable for whatever reason, why aren't all the airways from that VOR NOTAM'd?

[wingandaprayer]

I said it was a possible explanation. If you're really dying to know, try locating the people looking after them and ask them.

[it'sme]

Have no idea in these particular instances but in the past, things that have influenced signal strength or accuracy that have resulted in NOTAM's of this nature being disseminated have included obstacles that have cropped up in the signal path. This can be as mudane as trees that have this nasty habit of growing taller. Often times these trees are on private property and the land owner, once contacted by NC (or TC in the old days) suddenly are of the mind that said trees have immense value and some lengthy negotiation ensues. Or perhaps a little more of a man-made variety as in the construction of a building or buildings that wasn't foreseen as being an issue or the issue ignored by regulating authorities.........not that that ever happens.

So, I guess NC could keep these sorts of discoveries as their dirty little secrets or inform the aviation community via NOTAM of the problem until remedies are found. Personally, I opt for the latter.

And hey, it could be something entirely other than what it has been sometimes in the past with these types of things. Maybe it is a plot by NC just to piss off pilots.......or maybe it's human error.....or maybe it's those OCCUPY folks up to no good.....or maybe its just those damn Martians again........or maybe

[HeadingAltitudeSpeed]

If you are really concerned over the cause or feel there is a secret plot contact the shift manager at either ACC. I don't have the VR number handy but EG is 780-890-8397

[privateer]

Haha, I don't think there is any secret plot I was just really curious because it seems to be the norm now. I have never seen this many before, lately they have been piling up in the system. Given the randomness of the Notams my bet is they need to be flight checked and they haven't been so they are issuing a Notam. But if someone has the answer I would love to know.

Thank God for GPS.

[kevenv]

Haha, I don't think there is any secret plot I was just really curious because it seems to be the norm now. I have never seen this many before, lately they have been piling up in the system. Given the randomness of the Notams my bet is they need to be flight checked and they haven't been so they are issuing a Notam. But if someone has the answer I would love to know.

Thank God for GPS.

You're really curious?

Some sort of lack of responsibility going on at NAVCANADA?

But too me it seems like they are falling short of what they were paid to do.

Sounds like more than idol curiosity to me.

But if someone has the answer I would love to know.

Why don't you call and find out? The number was even given to you. Post the answer so we can all know.

[privateer]

Kevenv your occupation says you are ATC, why don't you answer the question.

[kevenv]

Kevenv your occupation says you are ATC, why don't you answer the question.

You think that I know and am playing "I have a secret"? If I had an answer I would have posted it in response to your original post.

I don't have an answer because I don't work any of the airspace involved so I have no idea why the NOTAM is out. So once again.... Why haven't you called and asked?

[linecrew]

Let us know what they said...


NAV CANADA Customer Service

77 Metcalfe Street
Ottawa, ON
K1 P 5L6
Tel.: 1-800-876-4693
Fax: 1-877-663-6656
E-mail: service@navcanada.ca

[Tim]

if had a few question for navcanada over the years about random things. every time i sent an email i had a quick reply and when necessary follow-up emails were sent. and i didnt even have to come on the internet and rant like a dick!

[HeadingAltitudeSpeed]

Well since privateer is obviously a troll looking for some bones I doubt he/she will actually bother to make use of the resources provided. I post the following for those that are curious as a result of his emergence from under the bridge.

Following a flight check the NOTAMed airways were found to be out of tolerance. As a result they have been NOTAMed as such. Simple answer to a simple question found after a few minutes of time.

[kevenv]

Well since privateer is obviously a troll looking for some bones I doubt he/she will actually bother to make use of the resources provided. I post the following for those that are curious as a result of his emergence from under the bridge.

Following a flight check the NOTAMed airways were found to be out of tolerance. As a result they have been NOTAMed as such. Simple answer to a simple question found after a few minutes of time.