F-117A was shot by a MiG-21.5

beauty!
http://www.patricksaviation.com/photos/ricardo.ricjam/18707/

March 27th 1999, F-117A #82-806 was returning to Aviano after dropping both of its bombs on enemy targets using the callsign "VEGA-31". As #806's autopilot guided itself home along the pre-determined exit route through enemy airspace the unthinkable occured. Although it has ALWAYS been known that the F-117A is merely "low observable" and not "invisible", past performances of the F-117A had hinted that it might end its carrear like its Skunk Works sibling, the SR-71 Blackbird, with zero emeny rounds out of thousand fired finding their mark.

Suddenly, a Russian made SA-3 Neva Surface to Air Missile (SAM) exploded very close to the F-117A at about 8:15 PM local time (2:15 PM EST). The blast caused enough damage to #806 that the aircraft went out of control. The pilot inside #806 stated he experienced "enormous" negative G-forces, potentially as high as five times the force of gravity.

A MIG21 able to shot down something at night ... :-) I don 't think so !!! Those MIG21 were non-upgraded ones (MIG21 MF & MIG21 bis ) with a basic radar ( http://www.topedge.com/panels/aircraft/sites/kraft/mig1.htm )

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BS

The truth was the mig-21, truth.

SA-3, not 6.
SA-6 shot down O'Grady's F-16 over Bosnia in 95

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yeah I agree

This F-117 wasn't shot by MIG-21, it was brought down by SA-6 KUB.