Las Vegas

En route from Eagle to Las Vegas by night, the pilot encountered strong headwinds and severe icing conditions. In low ceiling, he lost control of the airplane that dove into the ground and crashed in a mountainous terrain located near Hatch. The wreckage was found four days later, on January 24, and all six occupants have been killed.

The twin engine airplane departed Las Vegas Airport on a charter flight to Grand Canyon, carrying nine passengers, tourists from the US, France and Germany. En route, the pilot encountered poor weather conditions and elected to turning around when he lost control of the airplane that dove into the ground and crashed about 39 miles north of Peach Springs. The wreckage was found a day later in the Shivwits Plateau near Parashant Canyon. The aircraft disintegrated on impact and all 10 occupants have been killed.
Crew:
Wayne Leeth.
Passengers:
James Allen Jr,
Florence Allen,
Mr. R. Lynch,
Mrs. R. Lynch,
Mr. P. Dosmond, France,
Mrs. P. Dosmond, France,
Paul Haack, West Germany,
Renate Haack, West Germany,
Walter Pilgram, West Germany.

En route from Las Vegas to Houston, the left engine failed. The pilot was able to feather the propeller but unable to maintain a safe altitude. He informed ATC about his situation and was cleared to divert to the nearest airport for an emergency landing. While trying to land at a ranch airstrip, the airplane hit a wood pile and crashed in flamers. The pilot and a passenger were seriously injured while four other occupants were killed.

En route from Las Vegas to Dalhart, Texas, the crew encountered poor weather conditions with icing and turbulences. The VFR rated pilot preferred to continue in such conditions when few minutes later, a structural failure occurred on the left wing that detached. Out of control, the airplane dove into the ground and crashed in a huge explosion in an open field. All 11 occupants were killed.

Weather was poor near Las Vegas with indefinite ceiling at 500 feet, sky obscured, 900 m visibility and light snow. Flight 114 was flying a VOR/DME-3 approach when the plane descended below altitude minima. At 9.7 DME, at an elevation of 3575 feet msl the plane struck rising terrain and crashed. The flight should have been at 4300 feet msl at that point. It appeared that the VOR/DME-3 approach procedure was relatively new, having become effective on October 3, 1964. Until November 15 no approaches using this procedure had been flown. The approach chart depiction for the segment of the approach from the 15 mile fix to the 6 mile fix displayed no descent information on the profile section. However, the profile did show a solid horizontal line between the 6 mile fix and the 3 mile fix, with an altitude of 3,100 feet. Further, the solid line was defined in the Chart Legend as "Flight Path," which implied that a descent to 3,100 feet was proper once the fix to which the flight has been cleared is reached.

During engine runup, Flight 529 was given its air traffic control clearance which was: "cleared to the Las Vegas Airport via Victor 6 Naperville, Victor 8 flight plan route, maintain 5,000 feet." The clearance was acknowledged correctly and TWA Flight 529 departed on runway 22L at 0200, making a right turn out of traffic. The 0200 Midway Airport weather was: scattered clouds at 10,000 feet; high overcast, visibility three miles in haze and smoke; wind south eight knots. The Chicago O'Hare Airport weather at 0200 was: partial obscuration; scattered clouds 15,000 feet; high overcast; visibility two and one-half miles in ground fog and smoke; wind south six knots. Radar contact was established with the flight one minute and 34 seconds after the flight acknowledged takeoff clearance and as the aircraft proceeded outbound in a right turn. At 0204, Flight 529 was observed on radar by the departure controller to be five miles west of Midway Airport proceeding on course. Northwest Airlines Flight 105 was cleared for takeoff on runway 22L at Midway, and took off Immediately. The ground controller observed a flash west of Midway Airport at this time and asked Flight 105 if he had seen a flash. Flight 105 advised that they had seen a flash fire and would fly over the area. As Flight 105 reported over the fire, the radar range was noted to be nine miles west of Midway Airport and the radar return of TWA. Flight 529 had disappeared from the scope. It was later determined that Flight 529 had crashed at this site and that the observed ground fire was the result of the accident. The airplane disintegrated in a field and all 78 occupants have been killed.

United Airlines Flight 736 departed Los Angeles International Airport at 0737 hours Pacific standard time with 42 passengers and 5 crew aboard. It was a scheduled passenger flight to New York, which was proceeding normally in accordance with an IFR flight plan along Victor Airway 16 to Ontario, California, and Victor Airway 8 to Denver. The aircraft was cleared to a cruising altitude of 21 000 ft msl and advised to climb in VFR weather conditions. At 0735 the flight reported to Aeronautical Radio that it was over Ontario at 12 000 ft and was climbing in VFR conditions. Then at 081 1 it reported over Daggett at its cruising altitude of 21 000 ft and estimated that it would reach Las Vegas (omni range station) at 0831, This was the last position report made by the flight. At approximately 0745 hours that morning F-100F, 56-3755, took off from Nellis Air Force Base, Las Vegas, Nevada on an instrument training flight carrying an instructor and a trainee pilot. The flight was in accordance with a VFR local flight plan filed with Nellis Operations and the local traffic control tower. At approximately 0823, 755 called Nellis VFR Control and reported that it was "inbound on KRAM" ( a local commercial radio broadcast station). The flight requested an altitude assignment from which it would conduct a simulated ADF instrument jet penetration utilizing KRAM. The VFR controller assigned 755, 28 000 ft and advised it to report over the radio station. At approximately 0828, the flight reported that it was over KRAM requesting a penetration. The VFR controller cleared it for an immediate penetration and requested that it report the penetration turn. 755 then reported leaving 28 000 ft. There were no &her reports from the flight in connection with this procedure. At 0830 the offices of Aeronautical Radio at Los Angeles, Denver and Salt Lake City heard an emergency message from the United flight.. . . . " United 736, Mayday, midair collision, over Las Vegas. " At the same time, as nearly as can be determined, there was an unrecorded emergency transmission from the F-1 00F. This message was heard by the VFR controller and by the two pilots of another F-100F. All were agreed that the first portion of the emergency transmission was "Mayday, Mayday, this is 755. " The last part of the message was either, "We've had a flameout" or 'We're bailing out." The aircraft collided at 21 000 ft over a position later determined to be about 9 miles southwest of the Las Vegas VOR station, on Victor Airway 8, approximately 1-3/4 miles to the right (southeast) of the centerline. Both aircraft fell out of control and crashed killing the 47 persons on board the DC-7 and both pilots of the F-100F.

Trans World Airlines Flight 163 is a regularly scheduled domestic operation between Kansas City, Missouri, and Los Angeles, California, with intermediate stops at Topeka and Wichita, Kansas; Amarillo, Texas; Santa Fe and Albuquerque, New Mexico; and Las Vegas, Nevada. A scheduled crew change is made at Albuquerque. There, on November 15, 1956. Captain Arthur G. deFabry, First Officer James P. Rapattoni, and Hostess Anne J. Zeman boarded Flight 163 as its crew to complete the remaining segments. The flight was routine to Las Vegas where it landed at 1440. During the short ground time at Las Vegas the aircraft was serviced and the crew performed routine duties for continuation of the flight to Los Angeles. There was no apparent need for maintenance on the aircraft and none was performed. An Instrument Flight Rules flight plan was prepared and filed because of instrument weather conditions over the latter portion of the flight segment to Los Angeles. Weather conditions at Las Vegas, however, were clear. At 1449 Captain deFabry, seated in the captain’s position, taxied N 40404 from the Las Vegas terminal to runup position beside runway 7 where the required pretakeoff checks were accomplished. The aircraft and equipment responded normally. The flight was issued an instrument clearance by Air Route Traffic Control. At this time, according to the company load manifest, the gross weight of the aircraft was 41.801 pounds, well under the maximum allowable for takeoff, 43,650 pounds. The load was properly distributed with respect to the center of gravity limitations of the aircraft. With Captain deFabry operating the aircraft, Flight 163 took off at 1456. The takeoff was routine and was followed by a climbing left turn to gain altitude and establish a southwesterly course toward Los Angeles. At 1501, when over the northern perimeter of the city, First Officer Rapattoni radioed the Las Vegas tower stating the flight was returning to the airport, engine out. The Las Vegas tower controllers immediately notified all other traffic to remain clear and alerted emergency equipment. Flight 163 was cleared to land, any runway, and informed that the wind was calm. Captain deFabry elected to use runway 7 and First Officer Rapattoni notified the tower. Emergency equipment was then dispatched into position on the taxiway parallel to that runway. N40404 was soon observed on a wide base leg for runway 7 and as it turned onto the final approach. Position and altitude of the flight seemed normal. As the aircraft drew closer its extended gear could be seen and its left propeller was clearly visible, stopped and feathered. As the aircraft passed over the runway threshold its alignment position, and altitude seemed good; however, to nearly all observers excessive speed was apparent. The aircraft floated a considerable distance down the runway before touching it. It then bounced several times, after which an application of power was heard, obviously :m an attempt to go around. The Martin climbed, veered to the left, and its left wing gradually lowered. It seemed to “struggle” to continue flight and its airspeed decreased visibly. Seconds later the aircraft struck the ground, left wing low, just inside the airport boundary. Weather conditions at the time of the accident were clear, visibility 65 miles, and the wind was calm. A large cloud of dust, raised by the accident, hung over the scene and gradually lifted nearly vertically in evidence of the calm wind.

At Las Vegas, Trip 11-8 remained on the ground 35 minutes. During this time, the crew obtained weather forecasts for the trip to Denver and had the aircraft serviced with 370 gallons of fuel. These forecasts indicated that between south-western Utah and Denver there would be broken to overcast clouds with bases and tops ranging from 8,000 to 20,000 feet in altitude, and that below 8,000 feet there would be light rain showers with light snow showers above this level. The flight was cleared under Instrument Flight Rules to cruise at 13,000 feet to Grand Junction, Colorado, 14,000 feet to Eagle, Colorado, and 16,000 feet to the Dupont Intersection, 5 miles north of Denver, with Laramie, Wyoming, designated as the alternate airport The computed elapsed time was three hours and five minutes with sufficient fuel aboard to fly five hours and five minutes. A forecast for Denver, at 1700, when the flight was estimated to arrive, indicated a ceiling of 700 feet with icing in the clouds above 8,000 feet. At Laramie, the chosen alternate airport, a ceiling of 2,000 feet occasionally lowering to 1,000 feet was forecast with light rain showers expected to change to light snow showers after dark. At 1403, the flight departed Las Vegas, and two hours and two minutes later, at 1605, reported over Grand Junction at an altitude of 13,000 feet, climbing to 14,000. At this time the flight received from INSAC (Interstate Airways Communication) at Grand Junction the 1530 weather observations for Grand Junction, Denver, Eagle and Pueblo, Colorado. Denver was reported having a variable ceiling of 600 feet, overcast and lower broken clouds, visibility six miles, light rain and wind from the north-northwest at 12 miles per hour. When over Eagle, at 1637, the flight reported at an altitude of 14,000 feet and climbing to 16,000. Forty-five minutes later, at 1708, over the Dupont Intersection the flight reported to the Denver Tower and was given the Denver weather as ceiling 200 feet and visibility two miles. As the ceiling and visibility were expected to remain that way for several hours and as the company's landing minimums for Denver were ceiling 400 feet and visibility one mile, the crew requested a change of flight plan. Rock Springs, Wyoming, was chosen as the new alternate and permission was requested to land at Laramie, weather permitting. Denver Air Traffic Control approved and cleared the flight to Rock Springs to maintain 14,000 feet. Twenty-five miles south of Laramie, at 1732, Trip 11 called the Cheyenne Tower and asked permission to change course and to proceed direct to Cheyenne. This was approved by Denver ATC and the crew was further advised by the tower that there was a squall line between Laramie and Cheyenne. The Cheyenne weather reported to the flight at that time was ceiling 3,500 feet, overcast, lower broken clouds and visibility 20 miles. At 1740, the flight reported over the Cheyenne range at 14,000 feet and a special Cheyenne weather report was given the crew which showed the ceiling had lowered to 900 feet and that there was light sleet, and a visibility of 12 miles. Proceeding out the east course of the Cheyenne range, the flight notified the tower that it was low on fuel, taking on ice, and having difficulty in maintaining altitude. A few minutes later clearance was given the flight to descend to 8,000 feet on the north course of Cheyenne range. 2 This was acknowledged and seconds later it encountered severe turbulence. At approximately 1750, an unreadable transmission was heard by the tower. There was definite hysteria in the voice making this transmission. The tower then called the flight several times but no answer was received. Two minutes later at 1752, the tower received the following transmission "We are O. K and are out of it now." About one-half minute later a noise believed to be caused by a surge of power of the aircraft's engines was heard northwest of the tower. Shortly after this a flash of light was seen about two miles northwest of the airport.

At 0324LT, the crew informed ATC about his position at 9,000 feet vertical to Newhall and six minutes later, he obtained the permission to descend. At 0341LT, the aircraft hit the slope of Mt White located 14 miles south of Lebec and disintegrated on impact. All 11 occupants were killed. It appears that at the time of the accident, the aircraft was off track to the east by ten miles due to strong west winds, and it hit the mountain 75 feet below the summit.