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NOTAM duration interpretation

From here

Looking at this Oxford EGTK notam

L2332/20 – EGTK (United Kingdom of Great Britain and Northern Ireland): Aerodrome Closed
AERODROME
Period: 2020-05-06 18:00Z – 2020-05-31 21:30Z
Q-Code (FALC): AGA Facilities and services Aerodrome Closed Limitations
COVID-19 FLIGHT RESTRICTIONS: AD CLOSED. EXTENSIONS AVAILABLE
ON REQUEST SUBJECT TO STAFF AVAILABILITY.
CREATED: 04 May 2020 17:29:00
SOURCE: EUECYIYN

how does one unambiguously determine the duration of the airport closure?

To me it reads from Period: 2020-05-06 18:00Z to 2020-05-31 21:30Z i.e.6th May 1800 to 31st May 2130.

I fed it into the @dror_pilot notam decoder mentioned here which yields the same

1L2332/20 – EGTK (United Kingdom of Great Britain and Northorthern Ireland): Aerodrome Closed AERODROME Period: 2020-05-06 18:00Z – 2020-05-31 21:30Z Q-Code (FALC): Aerodromes, air routes and ground aids Facilities and services Aerodrome Closed Limitations COVID-19 FLIGHT RESTRICTIONS: Aerodrome CLOSED. EXTENSIONS AVAILABLE ON REQUEST SUBJECT TO STAFF AVAILABILITY. CREATED: 04 May 2020 17:29:00 SOURCE: EUECYIYN

The notam is from ICAO here. The relevant bit from the NOAA version here is

A) EGTK
B) 2005201800
C) 2005312130
D) 1800-2130
E) COVID 19 INFORMATION: AD CLOSED. EXTENSIONS AVAILABLE ON REQUEST SUBJECT TO STAFF AVAILABILITY

Administrator
Shoreham EGKA, United Kingdom

Can’t see that on SkyDemon or AIS just now?

Normally for long NOTAMS like that the schedule is in the text field I think

Posts are personal views only.
Oxfordshire, United Kingdom

MattL wrote:

Can’t see that on SkyDemon or AIS just now?

The NOTAM shows for me on SkyDemon and it is shown correctly, i.e. including the specific hours of closure! Did you choose a departure date/time within the validity period of the NOTAM?

Autorouter also shows it correctly.

Last Edited by Airborne_Again at 18 May 08:16
ESKC (Uppsala/Sundbro), Sweden

The thing is that most free notam sites don’t offer the option of a date range.

We did this before here. The IPPC source is now lost because IPPC changed their site to prevent non human clients getting the data

Of the sites which have no date selector, some sites seem to select just today’s date. Others select today and tomorrow…

Commercial products (SD, AR, RR) probably use the Eurocontrol B2B interface. This is what IPPC uses/used. With that one gone, we have to get notams from the US – just like in the bad old days

I would be interested in a site which is a good data source for airport notams.

Administrator
Shoreham EGKA, United Kingdom

The autorouter telegram bot will give you what to me looks like the raw NOTAM when you ask for a specific one. Which probably means the AR web interface and briefing packs will as well.

tmo
EPKP - Kraków, Poland

Peter wrote:

I would be interested in a site which is a good data source for airport notams.

NATS site in the UK is the official UK source and shows these fields correctly.

http://www.nats-uk.ead-it.com/public/index.php.html

If you want it done graphically, use EasyVFR
But like with anything, make sure you know how to use the tool before relying on it.

EIKH Kilrush

This is what NOAA now shows for EGTK:

L2466/20 NOTAMN
Q) EGTT/QFALC/IV/NBO/A /000/999/5150N00119W005
A) EGTK B) 2005201800 C) 2005312130
D) 1800-2130
E) COVID 19 INFORMATION: AD CLOSED. EXTENSIONS AVAILABLE ON REQUEST
SUBJECT TO STAFF AVAILABILITY.
CREATED: 16 May 2020 17:24:00
SOURCE: EUECYIYN

and here it is clear that the D) field applies to each day, so the airport is closed each day 1800-2130.

Administrator
Shoreham EGKA, United Kingdom
7 Posts
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