United States of America

Pan American World Airways Clipper Flight 160 was a scheduled cargo flight from New York-JFK to Frankfurt (FRA), Germany, with a scheduled stop at Prestwick (PIK), Scotland. At 08:25 the flight departed JFK. The aircraft was carrying 52912 lb (24000 kg) of cargo, 15,360 lb (6967 kg) of which were chemicals. After departure, Clipper 160 was vectored on course while climbing to FL330. At 08:44, Clipper 160's clearance was amended, and it was instructed to maintain FL310 as a final cruising altitude. Clipper 160 reported level at FL310 at 08:50. As the flight approached Sherbrooke VORTAC 100 miles east of Montreal, Canada, at about 09:04, it advised Pan American Operations (PANOP) in New York that smoke had accumulated in the "lower 41" electrical compartment, and that the flight was diverting to Boston. At 09:08, Clipper 160 advised Montreal Center that they were level at FL310 and wanted to return to JFK. Montreal Center cleared Clipper 160 for a right turn to a heading of 180 degrees. At 09:10, Clipper 160 advised PANOP that it was returning to New York and that the smoke seemed to be "getting a little thicker in here." At 09:11, the crew advised PANOP that they were now going to Boston and that "this smoke is getting too thick." They also requested that emergency equipment be available when they arrived at Boston. During this conversation, the comment was made that the "cockpit's full back there." During its return to Boston, the flight was given preferential air traffic control treatment, although it had not declared an emergency. After issuing appropriate descent clearances en route so that fuel could be burned off more rapidly at lower altitudes, at 09:26:30 Boston Center advised Boston Arrival Radar that the flight was at 2,000 feet. At 09:29, Clipper 160 asked Boston Center for the flight's distance from Boston, and added, "The DME's don't seem to be working." The Center answered, "You're passing abeam, Pease Air Force Base, right now, sir, and you're about 40 to 45 miles to the northwest of Boston." The first communication between Clipper 160 and the arrival radar controller was at 09:31:21. The flight was cleared "direct Boston, maintain 2,000." The controller asked if the flight was declaring an emergency; the reply was "negative on the emergency, and may we have runway 33 left?" The controller approved the request, and the flight proceeded to Boston as cleared. At approximately the same time, the captain instructed the crew to "shut down everything you don't need." At 09:34:20, the controller asked, "Clipper 160, what do you show for a compass heading right now?" Clipper 160 answered, "Compass heading at this time is 205." The controller then asked, "will you accept a vector for a visual approach to a 5-mile final for runway 33 left, or do you want to be extended out further?" The crew replied, "Negative, we want to get it on the ground as soon as possible." At 09:35:46, the controller stated, "Clipper 160, advise anytime you have the airport in sight." Clipper 160 did not reply. At 09:37:04, the arrival controller made the following transmission: "Clipper 160, this is Boston approach control. If you read, squawk ident on any transponder. I see your transponder just became inoperative. Continue inbound now for runway 33 left, you're No. 1. There is a Lufthansa 747 on a 3-mile final for runway 27, the spacing is good. Remain on this frequency, Clipper 160." There was no reply from the flight. With flaps and spoilers had been extended for speed reduction, the airplane approached runway 33L. The yaw damper was rendered inoperative by the uncoordinated execution of emergency procedures earlier. This made the 707 extremely difficult to control at low speeds. Control was lost and the airplane struck the ground nose down about 262 feet from the right edge of the approach end of runway 33.Pan American World Airways Clipper Flight 160 was a scheduled cargo flight from New York-JFK to Frankfurt (FRA), Germany, with a scheduled stop at Prestwick (PIK), Scotland. At 08:25 the flight departed JFK. The aircraft was carrying 52912 lb (24000 kg) of cargo, 15,360 lb (6967 kg) of which were chemicals. After departure, Clipper 160 was vectored on course while climbing to FL330. At 08:44, Clipper 160's clearance was amended, and it was instructed to maintain FL310 as a final cruising altitude. Clipper 160 reported level at FL310 at 08:50. As the flight approached Sherbrooke VORTAC 100 miles east of Montreal, Canada, at about 09:04, it advised Pan American Operations (PANOP) in New York that smoke had accumulated in the "lower 41" electrical compartment, and that the flight was diverting to Boston. At 09:08, Clipper 160 advised Montreal Center that they were level at FL310 and wanted to return to JFK. Montreal Center cleared Clipper 160 for a right turn to a heading of 180 degrees. At 09:10, Clipper 160 advised PANOP that it was returning to New York and that the smoke seemed to be "getting a little thicker in here." At 09:11, the crew advised PANOP that they were now going to Boston and that "this smoke is getting too thick." They also requested that emergency equipment be available when they arrived at Boston. During this conversation, the comment was made that the "cockpit's full back there." During its return to Boston, the flight was given preferential air traffic control treatment, although it had not declared an emergency. After issuing appropriate descent clearances en route so that fuel could be burned off more rapidly at lower altitudes, at 09:26:30 Boston Center advised Boston Arrival Radar that the flight was at 2,000 feet. At 09:29, Clipper 160 asked Boston Center for the flight's distance from Boston, and added, "The DME's don't seem to be working." The Center answered, "You're passing abeam, Pease Air Force Base, right now, sir, and you're about 40 to 45 miles to the northwest of Boston." The first communication between Clipper 160 and the arrival radar controller was at 09:31:21. The flight was cleared "direct Boston, maintain 2,000." The controller asked if the flight was declaring an emergency; the reply was "negative on the emergency, and may we have runway 33 left?" The controller approved the request, and the flight proceeded to Boston as cleared. At approximately the same time, the captain instructed the crew to "shut down everything you don't need." At 09:34:20, the controller asked, "Clipper 160, what do you show for a compass heading right now?" Clipper 160 answered, "Compass heading at this time is 205." The controller then asked, "will you accept a vector for a visual approach to a 5-mile final for runway 33 left, or do you want to be extended out further?" The crew replied, "Negative, we want to get it on the ground as soon as possible." At 09:35:46, the controller stated, "Clipper 160, advise anytime you have the airport in sight." Clipper 160 did not reply. At 09:37:04, the arrival controller made the following transmission: "Clipper 160, this is Boston approach control. If you read, squawk ident on any transponder. I see your transponder just became inoperative. Continue inbound now for runway 33 left, you're No. 1. There is a Lufthansa 747 on a 3-mile final for runway 27, the spacing is good. Remain on this frequency, Clipper 160." There was no reply from the flight. With flaps and spoilers had been extended for speed reduction, the airplane approached runway 33L. The yaw damper was rendered inoperative by the uncoordinated execution of emergency procedures earlier. This made the 707 extremely difficult to control at low speeds. Control was lost and the airplane struck the ground nose down about 262 feet from the right edge of the approach end of runway 33. The aircraft was totally destroyed and all three crew members were killed.

During the takeoff roll at La Verne-Brackett Field Airport, the pilot-in-command noticed a problem and decided to abandon the takeoff. He initiated an emergency braking procedure but unable to stop within the remaining distance, the twin engine airplane overran, lost its undercarriage and came to rest. Two passengers were killed while five others occupants were injured. The aircraft was destroyed.

Shortly after a night takeoff from Cincinnati-Lunken Field Airport, while in initial climb in foggy conditions, the airplane rolled to the left. The pilot elected to regain control when the airplane struck trees and crashed in the Miami River. The pilot and a passenger were killed while a second passenger was seriously injured.

En route from Georgetown to Miami by night, while on a cargo flight on behalf of Guyana Airways, the crew noticed a fuel leak on the n°3 main fuel system. Despite the situation, the crew decided to continue to Miami when, few minutes later, all four engines failed. As the crew realized it was not possible to fly to Miami, he reduced his altitude and ditched the aircraft into the Biscayne Bay. All three crew members were rescued while the aircraft sank and was lost.

En route from Little Rock to Fort Smith, the crew encountered poor weather conditions with low visibility. The four engine airplane struck the slope of Mt Sugarloaf located northwest of Hot Springs and was destroyed upon impact. All seven crew members were killed.
Crew:
Cpt Richard W. Lane, pilot instructor,
Cpt David G. Noltensmeyer, pilot,
Lt Douglas P. Menssen, copilot,
Cpt John M. Davis, navigator,
Lt Robert L. Nelson, navigator,
S/Sgt William R. Dawson, flight engineer,
T/Sgt Bernard J. Thaler, load adjuster.

Shortly after takeoff from Van Nuys Airport, while climbing, both engines stopped simultaneously. The pilot informed ground and completed a 180 turn to attempt an emergency landing when the airplane stalled and crashed few miles from the airfield. The aircraft was destroyed and the pilot, sole on board, was killed.

The pilot attempted to takeoff from Kodiak in a limited visibility due to fog. At mid-runway, he realized that another pilot entered the runway so he pulled on the control column to rotate. The twin engine airplane lifted off but due to an insufficient speed, it stalled and crashed in a lake past the runway end. All seven occupants escaped uninjured while the aircraft was damaged beyond repair. At the time of the accident, the visibility was very poor due to fog.

The pilot, sole on board, was completing a cargo flight from Cleveland to Chicago. While he was approaching Chicago-Merrill C. Meigs Airport by night, weather conditions worsened with fog and a limited visibility. The pilot lost control of the airplane that crashed into Lake Michigan about 1,5 mile northeast of the airfield. The aircraft was destroyed and the pilot was killed.

The twin engine airplane departed Stanford Airport in the evening on a local pleasure flight. While flying at a relative low altitude, the pilot lost control of the airplane that crashed in flames in a prairie located in Utica, about 14 miles southeast of Stanford. The aircraft was totally destroyed and all eight occupants were killed.

Texas International Airlines Flight 655 was a regularly scheduled passenger and cargo flight from Dallas to Memphis and return, with en route stops at Texarkana, El Dorado, and Pine Bluff. Flight 655 departed Memphis on the return flight at 18:42. After a stop at Pine Bluff, the flight continued toward El Dorado were it landed at 19:53. The crew conferred with the waiting pilots and used the Convair's weather radar to examine the weather echoes west of El Dorado. The crew commented on what appeared to be a 15-mile-wide break in the line of weather echoes, near the 300° radial of the El Dorado VORTAC and about 35 miles west-northwest of the airport. As Flight 655 taxied to runway 22, the crew contacted the FSS and stated that they were taxiing and would be proceeding under visual flight rules (VFR) to Texarkana. The aircraft took off at 20:15. After takeoff, the aircraft flew a magnetic heading of 290° and climbed to an altitude of 1,500 feet msl. The flight operated between altitudes of 1,500 feet and 3,000 feet until 20:49:47. From that time until the time of impact at 20:52:19, the aircraft's altitude varied between 2,200 feet and 2,025 feet. As the flight progressed, the first officer (pilot flying) expressed concern about the flight's position relative to the elevation of the terrain. About 12 minutes before impact, the first officer stated, "I sure wish I knew where ... we were." A few minutes later he stated, "Paintin' ridges and everything else boss, and I'm not familiar with the terrain." Two minutes and 40 seconds before impact and after the captain's ordered descent to 2,000 feet, the first officer said, "I'll be .... Man, I wish I knew where we were so we'd have some idea of the general ... terrain around this ... place." The captain told the first officer that the highest point in the area was "twelve hundred" feet and that they were not near that point. About 14 seconds before impact, the first officer mentioned that they were about to pass over Page VORTAC. Six seconds later the captain said that the heading to Texarkana was 180°. The first officer said that it was 152°. At 20:52:17, the first officer said, "Minimum en route altitude here is forty-four hun..." His statement was terminated by the sound of the crash. The aircraft crashed into the steep, heavily wooded, north slope of Black Fork Mountain in the Ouachita Mountain Range at an elevation of 2,025 feet (617 m) and about 600 feet below the top of the ridge.