NASA Photo ID: S90-47873          File Name: 10063923.jpg

Film Type: 120 CN                 Date Taken: 09/11/90

Title: STS-35 Columbia, OV-102, aft fuselage LRU hydrogen recirculation pump

Description:

Closeup view shows the aft fuselage line replaceable unit (LRU) hydrogen 
recirculation pump from Columbia, Orbiter Vehicle (OV) 102.  The pump is 
being tested at JSC's Thermochemical Test Area (TTA) Support Laboratory
Bldg  350.  JSC technicians ran the pump package through the battery of
leak tests.  Preliminary indications showed only minor, acceptable leakage
from the  package and Kennedy Space Center (KSC) technicians have replaced
a crushed  seal on the prevalve of the main propulsion system they believe
may have  caused the STS-35 hydrogen leak.