Yes, this is possible. I'm trying to figure out if jumpy instruments is
normal. I think that I should make a test or have it tested.

"SFM" wrote in message
...
Could this just be that the static port is very close to the pilot's door
and you closing it cause a disruption of air over the outside static port?

Scott

--
------------------------------------------------------------------
Scott F. Migaldi, K9PO
MI-150972
PP-ASEL-IA

Are you a PADI Instructor or DM? Then join the PADI
Instructor Yahoo Group at
http://groups.yahoo.com/group/PADI-Instructors/join
-----------------------------------
Catch the wave!
www.hamwave.com


**"A long time ago being crazy meant something, nowadays everyone is
crazy" -- Charles Manson**
-------------------------------------
"Derrick Early" wrote in message
...
When I close the door to my 172, the airspeed, vsi and altimeter
instruments
jump. Does this mean that I have a leak in my static line? The last
check
of the system was 18 to 20 months ago. The last thing that I want is
errors
in altitude while flying IFR.