B747skipper From , joined Dec 1969, posts, RR: Reply 1, posted (11 years 4 months 5 days 12 hours ago) and read 2941 times:
Dear Airbuspilot -
The database may be required by your operation's general operations manual, which is a regulatory document approved by your aviation authority... Your general operations manual is part of your operating certificate... and your operating certificate might be invalid if you operate without updated database. Obviously you could operate your aircraft by checking coordinates for all the enroute waypoints... but whether it is legal for your operation I do not know. With my airline it would be illegal... we get revisions every 30 days if I remember well. Our airplanes which are off-base can operate with expired database for a maximum of 3 days, provided that the crew verifies the routing from the CFP and pertinent Notams. If some discrepancies exist on a given route, the dispatch office would release the flight and advise the crew that there are updates required for the routing...
Tot ziens, bon vol... (s) Skipper
B747skipper From , joined Dec 1969, posts, RR: Reply 3, posted (11 years 4 months 5 days 4 hours ago) and read 2664 times:
Dear PPGMD -
This question was asked by Erasmus and dealt obviously with use of database with airplane(s) in airline environment... I gather your experience is with private airplane operations, VFR etc... which does not apply... I assume you are in the USA... Your statement may be correct for operations conducted under FAR 91... but definitely not for FAR 121 as would be applicable there...
Kay From France, joined Mar 2002, 1884 posts, RR: 3 Reply 5, posted (11 years 4 months 4 days 11 hours ago) and read 2606 times:
I tought GPS navigation can only be used as a help to the aircraft system's navigation and not as a primary navigation tool?? is this GPS panel we see in the cockpit of airliners a primary navigation tool?
Bjones From United States of America, joined Feb 2002, 123 posts, RR: 0 Reply 6, posted (11 years 4 months 4 days 6 hours ago) and read 2573 times:
Our rules are if the database is out of date we can use it for enroute navigation if we back it up with current enroute charts. It is not to be used for terminal area navigation/approaches without a current database. The database is to be updated "as soon as practical" whatever you interpret that to mean.
B747skipper From , joined Dec 1969, posts, RR: Reply 8, posted (11 years 4 months 4 days 1 hour ago) and read 2552 times:
Dear Erasmus -
Call it old age dyslexia... we need good guys like you to keep us old farts in line with the facts...
I know you want your seniority, Erasmus, but hell, please keep your foot off my oxygen hose !!!
Avec plaisir -
411A From United States of America, joined Nov 2001, 1826 posts, RR: 9 Reply 9, posted (11 years 4 months 3 days 23 hours ago) and read 2556 times:
The answer is YES, GPS can be used as a primary navigation aid for long overwater flights. However, if it is to be used in the airway route structure over land, or in the terminal area/approaches, a currect data base MUST be installed for IFR flight, part(s) 91, 121, 125, 135, and in accordance with the carriers operations specifications.
B747skipper From , joined Dec 1969, posts, RR: Reply 10, posted (11 years 4 months 3 days 22 hours ago) and read 2544 times:
What 411A mentioned is along the lines I described...
In our 747s we have triple INS update by two GPS, so no database is really needed, but in our A340s, they require the data base - beyond my IQ...
Again, if in doubt consult your airline's GOM for what can be done... for private flying (USA part 91) see what is required...