"Capt.Doug" wrote in message ...
"Marc Lattoni" wrote in message Do modern airliners not have an
alternate static source as on my 172?

The MD-80 does have an alternate static source for each side. It is a
checklist item. However, the crew was distracted at a busy time. Switching
to alternate static probably wouldn't come to mind very quickly.

D.

Where is the alternate static port vented? It can't be vented to the
cockpit in a pressurized aircraft, no?