Las Vegas Airlines

The charter flight was on a return tour trip after landing at the Grand Canyon National Park Airport. No fueling or maintenance was performed on the airplane while it sat on the ground for three hours. Shortly after takeoff from runway 21, the pilot transmitted that he had a problem and was declaring an emergency. He then stated '...I'm single engine right now....' The airplane was observed to be 100-200 feet above the terrain at the time. It continued flying for about 6 minutes, turning onto a crosswind, downwind, and then a right base leg for runway 21 before colliding with trees about 2.5 miles northeast of the airport. The airport is located in terrain that slopes upward from south to north and west to east. Winds were gusting to 29 knots. The density altitude was 6,870 feet. Examination of the suspect left engine did not reveal any evidence of failures or malfunctions. The investigation revealed deficiencies in the Federal Aviation Administration's oversight of the airline's maintenance program, and in the airline's extension of the time-in-service interval of the engines. The airline's AAIP does not require a maximum rated power check of the engines as required by the engine manufacturer's service instruction. In addition, the TBO of the engines had been extended from 1,800 to 2,400 hours.

The commuter flight was enroute to its home airport and over mountainous terrain when it encountered low ceilings and rain showers. The airplane was not certificated for ifr commuter flights. Instead of going to an alternate airport the pilot attempted to maintain visual conditions and requested and received a visual clearance into the tca and advised the controller that his altitude was 5,100 feet msl. His radio transmission became garbled during the clearance read back and shortly thereafter the controller observed the airplane's radar target turn left from its westerly track and disappear from his scope. There were no further communications between the pilot and the controller. When the aircraft failed to arrive at its destination an alnot was issued. Early the next morning the aircraft's wreckage was found impacted in a mountain approximately 10 miles south of course at an elevation of 4100 feet msl. The investigation revealed that the pilot had previously and successfully flown the accident airplane in ifr conditions.

A mechanic, who was not rated as a pilot, took the aircraft without permission and elected to takeoff at night. A witness saw the aircraft departing at about 0250 pdt. Subsequently, it crashed approximately 3 miles east-northeast of the airport in an open undeveloped area. The time of the accident was not determined, but a clock in the wreckage had stopped at 0355. There was evidence the aircraft had impacted in a nose down, inverted attitude while on a north-northeast heading. The aircraft moved only 28 feet after impact and came to rest inverted with the gear extended and the flaps retracted. No preimpact mechanical problem was found. Toxicology tests showed the pilot had a blood/alcohol level of 3,7‰ and a vitreous/alcohol level of 3,3‰. No record was found to indicate that he had engaged in any previous formal flight training. There was evidence the pilot had been under recent stress. A friend reported the pilot and his wife were 'breaking up.' The pilot's wife reported he had a drinking problem which was the reason for their separation.

The aircraft departed Las Vegas, NV as the 2nd of 5 aircraft on a scheduled Grand Canyon sightseeing flight. The 1st portion of the flight was over the Las Vegas strip area and Lake Mead and was uneventful. However, weather conditions precluded the pilot from continuing over the Shivwits plateau. Radio conversations between the pilot and other company aircrews indicated that the pilot of N88LV had encountered deteriorating weather conditions in the canyon and that he had decided to abort the flight and climb out. Later attempts to contact the aircraft were unsuccessful. The wreckage was found on 8/18/83 where the aircraft had collided on the west wall of a mesa inside the canyon. A helicopter pilot flying about 14 miles north of the crash site reported clouds at ground level (4,500 feet msl). The elevation of the accident site was 6,320 feet. Shortly before his last transmission, the pilot stated he was 'just short of Twin Peaks.' The pilot had transmitted his position from Peach VOR, indicating he was in the area of the crash site. Twin Peaks was northeast and had similar terrain. All 10 occupants were killed.
Crew:
Wallace S. Gustafson Jr., pilot.
Passengers:
Enrico Annibali,
Maria Vittoria Annibali,
Giancarlo Annibali,
Luciano Annibali,
Guliana Ranieri-Annibali,
Francesca Annibali,
Federica Annibali,
Stefano Annibali,
Daniele Vernava.
Photos: https://www.lostflights.com/Grand-Canyon-Aviation/81783-Las-Vegas-Airlines-Piper/

After takeoff from runway 25, at an altitude of 100 feet above ground level, the aircraft pitched up and reached a maximum pitch attitude of 50° to 75°. The aircraft crossed the highway while climbing to an altitude of about 400 feet, 2,000 feet from the departure end of the runway. It then began what witnesses described as a 'wingover' or 'sudden violent nose down turn' to the right, recrossed the highway and crashed in an almost level pitch attitude while in a slight right bank and a slight left yaw. Witnesses to the accident were attracted to the aircraft by the high pitch attitude after takeoff. During the post takeoff maneuver, the engines were reported to be running at a high power setting. The aircraft crashed about one minute after the takeoff roll began; it came to rest in an open field about 1,150 feet past the departure end of the runway and about 650 feet to the right of the runway. The impact heading was 025° magnetic. All 10 occupants were killed, among them Australian tourists.