Confirm Action

Are you sure you wish to do this?

Confirm Cancel
User Panel

Site Notices
Posted: 4/29/2011 7:43:39 AM EDT
ugh... phone blew up post...

Anyways, anyone here? A bit windy and overcast. hopefully clears up a bit.

Posted Via AR15.Com Mobile
Link Posted: 4/29/2011 7:44:10 AM EDT
Link Posted: 4/29/2011 10:25:49 AM EDT
Good luck with that.
Link Posted: 4/29/2011 10:26:43 AM EDT
Not gonna happen !
Link Posted: 4/29/2011 10:30:06 AM EDT

Engineers and Managers to Assess APU Issue

Fri, 29 Apr 2011 12:14:11 PM CDT

launch director Mike Leinbach stated that Endeavour's launch will be no
earlier than Monday at 2:33 p.m. EDT. Engineers need that time to
troubleshoot an issue that resulted in today’s launch scrub.

today’s countdown, engineers detected a failure in one of two heater
circuits associated with Auxiliary Power Unit (APU) 1. Heaters are
required to keep the APUs’ hydrazine from freezing on orbit. Attempts to
activate the heater were not successful and engineers now believe the
problem might be associated with a Load Control Assembly, which is a
switchbox, located in the aft end of Endeavour, or an electrical short
in the wires leading into or out of the switchbox.

external tank will be drained, technicians will enter Endeavour’s aft
compartment overnight and by tomorrow afternoon, will put in a platform
to gain access to the avionics bay where the Load Control Assembly is
located. Once there, they will assess whether they need to remove and
replace the switchbox, or fix an electrical wiring short.

Because of this, Leinbach said there will be a minimum 72-hour scrub turnaround.

and managers will meet this afternoon to further refine their
troubleshooting plan. NASA has scheduled a news conference at 4 p.m. to
discuss today’s scrub and the plan.

Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.

By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top