Acquired from the Royal Canadian Air Force, with whom it had been serialled 661. Given the identity KG661, but reserialled as ZA947 in 1979 when it was realised that the "real" KG661 was a different aircraft (c/n 13478).
Built as 42-23972 and delivered to the RCAF in July 1943, this Dakota was eventually retired from the Canadian Air Force when withdrawn in 1989. Sold to Basler Airlines in 1991, the aircraft underwent the company's turbo conversion in 1994. The airliner is registered to Oiland LLC at the time of uploading.
Originally World War II 42-24337, this C-47 has been with EASI - Environmental Aviation Services Inc. since December 1979, but operated out of Houma by Airbourne Support Inc. for Clean Gulf Associates since 1997. Parts from RCAF Dakota 12930 (c/n 13303), that crashed in the Canadian arctic in 1971, were used to rebuild N64767, which sometimes leads to confusion about its identity. The FAA incorrectly lists it as c/n 13303 after 1985, but the fuselage is in fact c/n 10199 ex USAAF 42-24337.