The Progress instrumentation and propulsion section is jettisoned

JSC2001-E-35506 (16 September 2001)--- This video grab shows the Progress instrumentation and propulsion section of the Pirs Docking Compartment. The section was jettisoned, leaving the Pirs attached to the Zvezda Service Module of the International Space Station (ISS), where it will serve as a docking port for future Russian vehicles arriving at the ISS and as an airlock to accommodate space walks out of the Station's Russian segment.