NASA may bring US' spy plane SR-71 Blackbird back to skies after 27 yrs

NASA may bring an SR-71A Blackbird spy plane back into flight after nearly 27 years, according to a report. The agency has contacted former engineers about a possible return-to-flight project involving Tail No 844, which made final flight as an SR-71 in 1999. However, NASA has not confirmed that it is working to return Tail No. 844 to the skies.