This evening a Northwest DC-9 hit an A-319 while taxing to the gate at KMSP. From the reports it sounds like hydraulic problems started mid-flight, so this could have been a much worse situation. At least everyone was able to walk away from this:http://wcco.com/topstories/local_story_130211546.htmlEric

Thanks for the Link Eric...

Donny AKA ShalomarFly 2 ROCKS!!!Why taxi once off the runway? Why didn't they shut down and wait for a tug? Guess hindsight is 20-20.Best Regards, Donny:-wave

>Why taxi once off the runway? Why didn't they shut down and>wait for a tug? Guess hindsight is 20-20.Here's my guess: You get a hydraulic warning mid flight but you are able to safely land with all control surfaces working. It might make you think the warning was the result of a sensor failure and not an actual hydraulic problem?I still can't believe the photos taken in the daylight today -- if the 319's wing were any lower it would have been a different story for the flight crew.Eric

That rear airstair door is an *excellent* idea...specially in emergencies!!!!

Just a quick follow-up with some details that were not published:1) One hydraulic system experienced failure, the redundant system was functional.2) Maintenance crews were waiting with a tug and wanted to pull the plane into the gate -- pilot declined.3) The pilot proceeded with normal arrival procedures, and ended up shutting down the engine powering the working hydraulic system.4) No attempt was made to restart to engine to regain hydraulic pressure.

Hmm. I never worked on DC-9 or MD-80, but I never met a plane that didn't have either and electric pump to drive hydraulic systems in case of an engine failure. But the DC-10 used reversible pumps (as well as one electic pump), where one hydraulic system can provide pressure to another, not directly but through a hydraulic driven hydraulic pump, if you get that. Is that the case in the DC-9?

Ouch - that doesn't look cheap to repair!http://online.vatsimindicators.net/916312/3.png