When is a Database not a Database?
Thread Starter
Join Date: Oct 2001
Location: North of Watford
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
When is a Database not a Database?
To all you B757/B767 operators out there. .How is it legal under JAR rules to operate a/c with a current database for europe that does not in any shape or form cover the geographical area the a/c is operating in.No DME updating because FMC does not recognise any of the beacons that the a/c is flying over IRS Nav only all the time Vnav as good as useless.All inputs would be gratefully received!
Interesting question.. .. .Come to think of it, its probably like flying any old analog plane (727, 737-200, DC 8, DC-10, 747-200 etc.).. .Actually you can even fly MNPS over the pond with just 2 IRS (among other things).. .. .What do the limititions in the manuals say about this?. .What does your MEL say?. .Youre RNP values will go up, and youll have to hard-tune VORs etc., so you cannot just let it fly on the green line (you never can anyway, without periodically checking).... .. .Do you see any potential hazards?. .Have you had any incidents?. .Have you talked to your safety pilot? (Do you have one?). .. .What must be the risk/benefit/cost- calculation of the people flying desks who let this happen??!!
Cunning Artificer
Join Date: Jun 2001
Location: The spiritual home of DeHavilland
Age: 76
Posts: 3,127
Likes: 0
Received 0 Likes
on
0 Posts
It sounds to me that you are using a database that was customised for another operator who flew different routes. Are you leasing the aircraft or is it your own? Updating the Nav Data Base to include the routes that you fly is a simple process and is included in the update service, so cost should not be a problem. All you need do is inform the database supplier what routes you fly and they should be in the next issue of the customised database. If you are leasing the aircraft then you need to get the owner to provide a database update. Failing that, get in touch with the FMS manufacturer [Honeywell I expect] and negotiate a database that works for you. . .. .**********************************. .Through difficulties to the cinema
Per Ardua ad Astraeus
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes
on
0 Posts
'Saddest', . .My understanding (limited!) is that nearly all of Europe is BRNAV airspace and requires FMC updating, either from GPS or DME (not sure about triple INS). If this is NOT available, your company needs to file as such and routes/levels will be restricted. . .. .The short answer to your question is probably not!
Join Date: Oct 2001
Location: Gatwick
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
Suggest that you have a look at the following:. .. . <a href="http://www.ecacnav.com/files/TGL2REV1_.pdf" target="_blank">TGL</a> . .. .Its the requirements for flying in Basic RNAV airspace in Europe. BRNAV is applicable Europe wide, although the starting FL varies from country to country. <img border="0" title="" alt="[Roll Eyes]" src="rolleyes.gif" /> . .. .There are two specific issues that seem applicable to your case. Firstly (requirement) you need an RNAV system that is capable of storing at least 4 waypoints which can be updated as you fly to define your future route. Secondly if you are operating with an INS without updating you are subject to a restriction:. .. ."INS without a function for automatic radio updating of aircraft position [snip] may be used only for a maximum of 2 hours from the last alignment/position update performed on the ground.". .. .If you can't meet the requirements or your flight duration is > 2 hours you should file as non-RNAV and accept the restrictions that may/may not come with it. Strongly suggest that you get yourself a decent database.. .. .Take care.. . . . <small>[ 06 March 2002, 14:18: Message edited by: Never Lost ]</small>
