Prinair is a Puerto Rican charter operator airline. Prinar Airlines Profile. Center for Aviation (Aviation Week Network) 2019. Accessed 9 December 2019. It was Puerto Rico's domestic and international flag carrier airline for almost two decades from the mid-1960s to the mid-1980s. Despite previously ceasing scheduled commercial operations twice, it restarted flights on March 19, 2019.
During 1978, Nicolas Nogueras, a Puerto Rican politician, sought a Certiorari against Prinair at the United States Supreme Court; he was denied.
In the early 1980s, Prinair introduced into service larger and more capable Convair 580 turboprop aircraft. This provided the plane spotter at San Juan with another interesting aircraft type to look out for, but did little for the airline other than help increase the earnings from the Virgin Islands routes. Increased competition for these routes from Aero Virgin Islands and Oceanair, in addition to a measure of distrust from the public that had not forgotten a number of fatal crashes, resulted in Prinair ceasing operations in 1985. It was the intention that Prinair would have been one of the launch customers of the CASA CN-235 and at the roll-out of the new aircraft in September 1983 the prototype was actually painted in Prinair colors (right side only). However, the demise of Prinair prevented delivery. The airline did operate an earlier CASA-manufactured aircraft, the C-212 Aviocar turboprop.
In 2007, the airline resumed operations with Piper Chieftain propeller-driven aircraft;www,airliners.net, Photos of Prinair Piper Chieftain aircraft at San Juan (SJU) The airline again ceased all flights in 2010.
The company's Prinairtours announced that in 2019 Prinair would relaunch flights as a charter airline, starting with services between Aguadilla on Puerto Rico's northwest coast and Punta Cana, Dominican Republic. Prinair Profile. Center for Aviation. 2019. Accessed 9 December 2019.
On March 5, 1969 Prinair Flight 277 departed Saint Thomas, U.S. Virgin Islands for a flight to San Juan. Seventeen minutes after take-off, the crew contacted San Juan Approach Control. The approach controller on duty (a trainee) replied; "Prinair Two Seven Seven, San Juan Approach Control, radar contact three miles east of Isla Verde...maintain four thousand." The aircraft was actually three miles east of the Fajardo waypoint instead of the Isla Verde waypoint (which is located about 10 miles west of the Fajardo waypoint). Six minutes later the aircraft crashed in the Sierra de Luquillo mountains at an elevation of about 2400 feet; all 19 occupants were killed. The accident investigation found that Air Traffic Control was to blame. Aviation Safety Network N563PR accident page. Retrieved: August 13, 2008.
On June 24, 1972 Prinair Flight 191 crashed after Go-around just after touching down at Ponce's Mercedita Airport, killing five of the 20 occupants (including both pilots). Aviation Safety Network N554PR accident page. Retrieved: August 13, 2008. An accident investigation found that the go-around was prompted by a vehicle on the runway, First NTSB Report on the crash of N554PR. Retrieved: August 13, 2008. but the investigation was re-opened three years after the accident due to evidence that there was no vehicle on the runway; the second investigation concluded that the go-around was for unknown reasons. Second NTSB Report on the crash of N554PR. Retrieved: August 13, 2008.
Prinair Flight 610 crashed moments after taking off at Saint Croix, U.S. Virgin Islands on July 24, 1979, with the loss of eight lives. Aviation Safety Network N575PR accident page. Retrieved: August 13, 2008. An accident investigation found that the aircraft had been overloaded by 1,060 pounds and that the center of gravity (CG) was 8 inches beyond the maximum rear limit.
A second version of Prinair operated between 2007 and 2010 with Piper Chieftain aircraft.
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