On Fri, 10 Jun 2005 04:33:58 GMT, Chuck wrote:

On Tue, 31 May 2005 12:24:32 +0000 (UTC),
wrote:

In rec.aviation.misc Charlie Derk wrote:
: During my instrument training I was told that if you have an IFR
: certified GPS, it had to be updated if you were using it for IFR Flight.
: You can use it VFR even if it hasn't been updated
: Charlie

As I've heard it, you can technically fly IFR with an expired database, so
long as you have verified that the data for every piece of information in the database
that you will use is correct.

-Cory


I've heard that recently myself. You can use an expired database GPS
for all the VFR you want. But to use it for IFR, you first have to
confirm the database information for any approach you'll use hasn't
changed. Or you have to manually chage it in the database if it has
changed.

Unless precluded by the flight manual supplement or, if incorporated
by reference like "Must be operated in accordance with the owners
manual" in the supplement, the users guide.

The KLN89B and KLN94 are apparently two such units - their supplement
introduction states "NOTE: A current database is required by
regulation in order to use the (blah) GPS system for non-precision
approaches". The KLN94 limitations page states "Instrument approaches
must be accomplished in accordance with approved instrument approach
procedures that are retrieved from the KLN 94 database. The KLN 94
aeronautical database must incorporate the current update cycle." The
89B's limitations page is similar, except they also have a minimum
software revision limitation.

Doesn't look to have any discretion to verify and go with expired
databases with these boxes at least.