Mountains

The airplane collided with trees and mountainous terrain at the 3,600-foot-level of Mauna Kea Volcano during an en route cruise descent toward the destination airport that was 21 miles east of the accident site. The flight departed Honolulu VFR at 0032 to pickup a patient in Hilo, on the Island of Hawaii. The inter island cruising altitude was 9,500 feet and the flight was obtaining VFR flight advisories. At 0113, just before the flight crossed the northwestern coast of Hawaii, the controller provided the pilot with the current Hilo weather, which was reporting a visibility of 1 3/4 miles in heavy rain and mist with ceiling 1,700 feet broken, 2,300 overcast. Recorded radar data showed that the flight crossed the coast of Hawaii at 0122, descending through 7,400 feet tracking southeast bound toward the northern slopes of Mauna Kea and Hilo beyond. The last recorded position of the aircraft was about 26 miles northwest of the accident site at a mode C reported altitude of 6,400 feet. At 0130, the controller informed the pilot that radar contact was lost and also said that at the airplane's altitude, radar coverage would not be available inbound to Hilo. The controller terminated radar services. A witness who lived in the immediate area of the accident site reported that around 0130 he heard a low flying airplane coming from the north. He alked outside his residence and observed an airplane fly over about 500 feet above ground level (agl) traveling in the direction of the accident site about 3 miles east. The witness said that light rain was falling and he could see a half moon, which he thought provided fair illumination. The area forecast in effect at the time of the flight's departure called for broken to overcast layers from 1,000 to 2,000 feet, with merging layers to 30,000 feet and isolated cumulonimbus clouds with tops to 40,000 feet. It also indicated that the visibility could temporarily go below 3 statute miles. The debris path extended about 500 feet along a magnetic bearing of 100 degrees with debris scattered both on the ground and in tree branches. Investigators found no anomalies with the airplane or engines that would have precluded normal operation. Pilots for the operator typically departed under VFR, even in night conditions or with expectations of encountering adverse weather, to preclude ground holding delays. The pilots would then pick up their instrument flight rules (IFR) clearance en route. The forecast and actual weather conditions at Hilo were below the minimums specified in the company Operations Manual for VFR operations.

The aircraft departed controlled flight and crashed near Helendale, California. The captain and the first officer were killed, and the airplane was destroyed. The flight was operating under the provisions of 14 Code of Federal Regulations (CFR) Part 912 from San Bernardino County Airport (CNO), Chino, California, to Friedman Memorial Airport, Hailey, Idaho. Visual meteorological conditions prevailed for the flight, which operated on an instrument flight rules flight plan. A review of radar data and air traffic control (ATC) transcripts revealed that the flight departed CNO about 0858 and was cleared to climb to an altitude of 29,000 feet mean sea level (msl). About 0909:55, as the airplane was climbing through an altitude of 26,000 feet, the first officer requested a return to CNO. About 0910:01, the controller asked the first officer if he needed to declare an emergency, and the first officer replied that he did not. The controller then directed the flight crew to maintain an altitude of 24,000 feet. Mode C information for the flight showed that, from about 0910:12 to about 0910:59, the airplane descended from 26,500 to 24,000 feet at a rate of about 2,000 feet per minute (fpm). About 0911:08, the controller cleared the flight directly to HECTOR (a navigation fix) and asked the first officer to confirm that the airplane was in level flight at an altitude of 24,000 feet. The first officer did not respond. Radar data showed the airplane descending through 23,000 feet at a rate of about 6,500 fpm about that time. About 0911:24, while the airplane was descending at a rate of about 10,000 fpm, the first officer stated, “we’re declaring an emergency now.” No further transmissions were received from the airplane. No radar data were available after about 0911:35. Starting about 0911:47, mode C information was invalid. The airplane impacted high desert terrain (an elevation of 3,350 feet) about 3 miles southeast of Helendale. The accident site was located about 46 nautical miles (nm) north of CNO. A witness to the accident, who was located about 4.5 miles northwest of the accident site, stated that, after hearing the sound of a jet flying high overhead, he looked up and observed the accident airplane flying straight and level below a high, overcast cloud layer. He stated that the airplane then pitched “nose down a little” and “straightened again.” He also stated that, shortly thereafter, he observed the airplane’s nose pitch “straight down” until it impacted terrain. The witness reported that he did not notice whether the airplane was rotating about its longitudinal axis during the descent, but he did indicate that the airplane appeared to be intact without any components separating from the airplane during the descent. The witness added that he did not observe any smoke or fire before the airplane impacted terrain and that the airplane exploded into a “mushroom cloud” when it impacted terrain. San Bernardino County firefighters, who were performing controlled burns near the accident site, reported hearing an explosion about the time of the accident. The firefighters reported that they looked toward the direction of the explosion and saw a rising smoke cloud. None of the firefighters observed the airplane before the sound of the explosion. The firefighters drove to the accident site and were the first to arrive there. The firefighters extinguished small fires that had erupted as a result of the crash.

While cruising at an altitude of 25,000 feet on a cargo flight from Yopal to Mitú, the crew was cleared to descend to 7,000 feet for an approach to runway 01 at Mitú-Fabio Alberto León Bentley Airport. Few minutes later, while descending at an altitude of 23,300 feet, the aircraft entered an uncontrolled descent and crashed in a mountainous and isolated area located about 135 km northwest of Mitú Airport. The wreckage was found 10 days later, on December 28, at coordinates N 002° 19' 15'' W 070° 47' 13''. The aircraft was totally destroyed and all three crew members were killed.

Based at Creil AFB (BA110), the aircraft was dispatched at Toulouse-Francazal AFB on December 15 for a period of three days to conduct local missions with paratroopers. Undel callsign Cotam 1492, the aircraft departed Toulouse-Francazal Airport at 0952LT with 12 paratroopers and four crew members on board on behalf of the Escadron de Transport 01.062 Vercors. At 1017LT, while approaching the drop zone of Tour du Crieu at an altitude of 12,000 feet, nine skydivers left the cabin. Then the captain informed ground he want to conduct a low flight over the Pyrenees mountains for a period of 10-15 minutes before returning to the base. At 1025LT, the aircraft entered the Ariege valley between Foix and Tarascon then the Vicdessos valley. Approaching Suc-et-Sentenac at 1034LT, the aircraft turn to the right and started to climb to pass over the Pic du Pioulou. The climb was started at an altitude of 3,700 feet (600 feet above ground) with a rate of climb of 3,000 feet per minute and a speed of 170 knots. Due pass the Pic du Pioulou (7,200 feet high), the aircraft should climb at least 3,500 feet on a distance of 4,500 metres with an average slope of 23,4% which is over the aircraft capabilities. While climbing with a speed of 100 knots, the stick shaker activated and the stall warning sounded. The speed continued to drop and the aircraft nosed up, reaching an angle of attack of 55°. At a speed of 55 knots, the aircraft stalled, rolled to the left and crashed on the slope of the Pic du Pioulou at an altitude of 1,830 metres. The aircraft was destroyed by impact forces and all seven occupants (four crew members and three paratroopers) were killed.
Crew:
Cpt Charles Edouard Bardinet,
Asp Mallory Bernard,
Adj David Roux,
Adj/C Serge Kaczala,
Cap/C Mickael Larivière,
Cap/C Jérôme Garcia,
Cpt Aude Tessier.

During an on-demand air taxi flight, the airline transport certificated pilot was preparing to land an amphibious float-equipped airplane near a cabin that was located on the shore of a coastal bay. A 10 to 15 knot wind was blowing from the bay toward the land, and the pilot decided to approach over land. As the airplane descended over a small creek bed, adjacent to a hill, the airplane encountered a downdraft, and descended rapidly. The left wing collided with alder trees which spun the airplane 180 degrees. The right wing and float assembly were torn off the airplane. The closest official weather observation station, located 30 miles away, was reporting calm wind.

Lost without trace on a delivery flight from Caracas to Charallave. The wreckage was not found. Both occupants are presumed dead.

The fire tanker airplane was on a cross-country positioning flight and collided with mountainous terrain while maneuvering in a canyon near the destination airport. Witnesses who held pilot certificates were on a mountain top at 7,900 feet and saw a cloud layer as far to the south as they could see. They used visual cues to estimate that the cloud tops were around 5,000 feet mean sea level (msl). They noted that the clouds did not extend all the way up into the mountain canyons; the clouds broke up near the head of some canyons. When they first saw the airplane, they assumed that it came from above the clouds. It was proceeding north up a canyon near the edge of clouds, which were breaking up. They were definitely looking down at the airplane the whole time. They saw the airplane make a 180-degree turn that was steeper than a standard rate turn. The wings leveled and the airplane went through one cloud, reappeared briefly, and then entered the cloud layer. It appeared to be descending when they last saw it. About 2 minutes later, they saw the top of the cloud layer bulge and turn a darker color. The bulge began to subside and they observed several smaller bulges appear. They notified local authorities that they thought a plane was down. Searchers discovered the wreckage at that location and reported that the wreckage and surrounding vegetation were on fire. The initial responders reported that the area was cloudy and the visibility was low. Examination of the ground scars and wreckage debris path disclosed that the airplane collided with the canyon walls in controlled flight on a westerly heading of 260 degrees at an elevation of 3,400 feet msl. The operator had an Automated Flight Following (AFF) system installed on the airplane. It recorded the airplane's location every 2 minutes using a GPS. The data indicated that the airplane departed Prescott and flew direct to the Twentynine Palms VORTAC (very high frequency omnidirectional radio range, tactical air navigation). The flight changed course slightly to 260 degrees, which took it to the northeast corner of the wilderness area where the accident occurred. At 1102:57, the data indicated that the airplane was at 11,135 feet msl at 204 knots. The airplane then made three left descending 360-degree turns. The third turn began at 6,010 feet msl. At 1116:57, the last recorded data point indicated that the airplane was at an altitude of 3,809 feet heading 256 degrees at a speed of 128 knots.

The Alta Flights Cessna 414A (registration C-GVZE, serial number 414A0219) departed Cranbrook, British Columbia, at approximately 1910 mountain daylight time (MDT) on a visual flight rules cargo flight to Calgary, Alberta. The aircraft disappeared from the Calgary area radar at 1936 MDT, at an indicated altitude of 9000 feet above sea level (asl) in the Highwood Range mountains, approximately 49 nautical miles southwest of Calgary. The aircraft wreckage was found on a mountain ridge at 8900 feet asl some 40 hours later. The flight was in controlled descent to Calgary when the impact occurred. There was a total break-up of the aircraft, and the pilot, the lone occupant, was fatally injured. There was a brief fireball at the time of impact.

Crashed during bad weather. Andrew Wilde was flying and George Muir was a passenger. While enroute from Motu - Opotiki the gully became un-negotiable, so Andrew decided to return to Motu by flying a reciprocal course low level, depicted by arrows on his hand held marine GPS. During the return trip to Motahora up the Otara river valley, he found that the cloud base had lowered even further than when he entered the valley 6 minutes prior & he became fully reliant on that little GPS. The GPS became our enemy & lured Andrew into the cloud base, which ended our flight abruptly.
Testimony from George Muir, loader driver and passenger during this flight.

While cruising under VFR mode at an altitude of 8,400 feet in poor weather conditions, the twin engine aircraft struck the slope of a mountain located near Tecalitlán. The aircraft was totally destroyed and all eight occupants were killed. At the time of the accident, weather conditions were poor over State of Jalisco due to a tropical storm with heavy rain falls and strong winds.