Further to my saga of class e control zone data incorrectly displayed on the GPSMap 296:
I received a prompt response from Jeppesen saying the data was accurately represented from the original source material, the Designated Airspace Handbook (DAH).
They provided me the excerpts as a reference.
In the DAH, the CZ ceilings are properly cited as
'AAE' (Above Aerodrome Elevation), however Jeppesen incorrectly interprets this as MSL.
In fact, technical support at Jepp says "All of the DAH airspace altitudes are
ASL Above Sea Level (MSL) alts", so I think they made a bad assumption.
I think we are getting to the bottom of the problem here. It does look like an error in Jeppesen's database. I will keep everyone posted on the outcome.
Kudos to Jeppesen for the prompt and complete response (even if it was wrong!). T
Vern
**Update** I just got a response from Jepessen... they agree that there is an error in their database, and have raised an official 'incident report' to correct. Then, I mentioned that Italy has the same problem... so maybe they have to look at the whole world.
I always wanted to change the world.....
