Prinair Flight 191

Infobox Airliner accident
name=Prinair Flight 191
Date=June 24 1972
Type=Pilot error
Site=near Ponce, Puerto Rico
Fatalities=5
Injuries=15
Aircraft Type= de Havilland DH.114 Heron 2B
Origin=Luis Muñoz Marín International Airport
Destination=Mercedita Airport
Operator=Prinair
Codeshare=
Tail Number=N554PR
Passengers=18
Crew=2
Survivors =15

Prinair Flight 191 was a Prinair (Puerto Rico International Airlines) flight from Luis Muñoz Marín International Airport in San Juan, Puerto Rico, to Mercedita Airport in Ponce, Puerto Rico. At approximately 11:15pm on 24 June 1972, the aircraft crashed while attempting to land at Mercedita Airport. Five people died in the accident. [http://amelia.db.erau.edu/reports/ntsb/aar/AAR72-34.pdf First NTSB report on the investigation into the crash of N554PR.] Retrieved: 14 August 2008.]

Aircraft and crew

The flight was operated by a de Havilland DH.114 Heron 2B aircraft, registration number N554PR. The aircraft was almost fully loaded, with eighteen passengers and a crew of two on board. [The two NTSB accident reports used as sources describe N554PR as being modified to have 20 passenger seats.]

Flight and accident

The flight was uneventful up to the moment of landing. As the flight was late at night, the control tower at Mercedita Airport was closed, therefore the flight crew was responsible for the landing clearance. Just after touching down on the runway at Mercedita Airport the flight crew made a decision to go around. The pilot over-rotated the aircraft and caused it to stall at a low level and crash; three passengers and the two flight crew members died, the other fifteen passengers were injured, seven seriously.

Investigation

The National Transportation Safety Board (NTSB) investigation concluded that the probable cause was the "presence of an unauthorized vehicle on the runway which caused the pilot to attempt a go-around after touchdown to avoid a collision. The maneuver resulted in an overrotation of the aircraft at too low an airspeed to sustain flight". This was based on eyewitness accounts of a set of lights visible on the runway as Flight 191 approached, and other eyewitness accounts of a vehicle owned by the Puerto Rico Ports Authority being parked shortly after the accident and the driver acting in a suspicious manner.

Three years after the accident the NTSB was compelled to re-open the investigation into the crash, after submissions were received that the person who was suspected of driving the "unauthorized vehicle" had actually left the airport about fifteen minutes before the aircraft crashed. The second investigation concluded that there was no airport vehicle on the runway, and that the reason for the go-around of the aircraft was unknown; a new report was issued, explaining the evidence as to the location of the airport vehicle and amending the Probable Cause to remove reference to a vehicle being on the runway. [http://amelia.db.erau.edu/reports/ntsb/aar/AAR75-17.pdf Second NTSB report on the investigation into the crash of N554PR.] Retrieved: 14 August 2008.]

ee also

* List of accidents and incidents on commercial airliners

References