Sierra Pacific Airlines (SI, Tucson International) has taken delivery of its first B737-500, N541AS (msn 27424) awaiting to be put in service after storage at Roswell Skyliner Aviation has reported.

The former British Airways (BA, London Heathrow) aircraft joins Sierra Pacific's other fleet of two B737-200Adv. aircraft used on charter flights for and on behalf of various US government institutions including United States Forest Service Aviation (Boise) and the United States Marshals Service (Washington National).