"Stan Gosnell" wrote in message
...
"Wyatt Emmerich" wrote in
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The altimeter readings were all correct on the flight. The transponder
reported accurately and center never had a problem with my altitude.
So it seems to me, the static system must be correct.

A loose connection in the ram air system could give erroneous airspeed
readings while giving correct altimeter readings, as could a partial
obstruction. I've seen water in the pitot system give this error also,
which is really a partial obstruction.


Just a comment:
We were required to do a leak test after opening a pitot or static
line for whatever reason. Eventually water drain fittings were
removed from this required list but that seemed to me at the time
to be a mistake since those o-rings were especially prone to
rotting out. O-ring quality improvement seemed to solve that.

JK (expecting a mud wasp comment from tarver)