California

While on approach to Helendale Airport, the twin engine aircraft speed was too low. The left wing dropped and the airplane dove into the ground and crashed in flames. Both occupants were killed. They were completing an electrical chute device drop test from Van Nuys Airport.

The aircraft was engaged in a local skydiving mission, carrying 10 skydivers and one pilot. Following a roll of about 900 feet, the pilot started the rotation. At a speed of 75 mph, the airplane lifted off then stalled and struck the ground. Out of control, it veered off runway and came to rest in flames. All 11 occupants were rescued, one passenger was seriously injured. The aircraft was destroyed.

While approaching San Francisco Airport in foggy conditions, the crew reduced his altitude and passed below the minimum descent altitude when the twin engine airplane struck the water surface and crashed into the San Francisco Bay, few hundred yards off shore. All four occupants were injured and rescued while the aircraft sank and was lost. At the time of the accident, the visibility was reduced due to fog.

After touchdown at El Toro AFB, the airplane went out of control, veered off runway and came to rest in flames on the apron, less than 50 yards from 'Air Force One'. A crew member was killed while four others were injured.

Following a firefighting mission, the crew was returning to Columbia Airport when, on final approach, the airplane was too low and struck a rocky wall located about 252 feet short of runway threshold. The airplane crashed and was destroyed. Both crew members were killed.

While taxiing at Palmdale AFB, the airplane caught fire. The crew immediately stopped then airplane on the taxiway and was able to evacuated the cabin. The aircraft was totally destroyed after 45 minutes of an intense fire. The cause remains unknown.

The Aero Spacelines 377MGT was a converted Boeing Stratoliner. Prototype N111AS first flew on March 13, 1970. In the following period flight testing was carried out, a.o. at Edwards AFB. The accident occurred during the sixth takeoff of Flight Number 12 following the scheduled shutdown of the engine number one at about 109 knots IAS. The takeoff was being made on runway 22 and the wind was from approximately 200 degrees at about 10 knots. Rotation occurred at about 114 knots and several seconds after rotation, according to one witness, the aircraft turned and rolled to the left, settling as it did so. The left wingtip subsequently contacted the ground, causing a severe yaw. The forward fuselage struck the ground, causing the flight deck to be destroyed. The test flight was under FAR Part 25 certification program.
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Prior to takeoff, the local controller offered pilot choice of runways 01 or 28. The crew decided to takeoff from runway 01. During the takeoff roll, the airplane was caught by strong winds and control was lost. The airplane veered off runway, lost its undercarriage and came to rest in flames. Both pilots were injured and the aircraft was destroyed by fire.

Shortly after takeoff from runway 30 at Hamilton AFB (Novato, CA), the crew was cleared to climb at his discretion, following heading 360 till 2,600 feet then heading 340. Few seconds later, the airplane struck trees and crashed on a mountain slope located eight miles from the airbase. The aircraft was totally destroyed by impact forces and a post crash fire. A passenger was seriously injured while 13 other occupants were killed. The crew from the 26th Division was completing a flight to Spokane, Washington. At the time of the accident, weather conditions were considered as good with three cloud layers at 900, 15,000 and 25,000 feet, a visibility of about 8 miles and a light wind from 340 at 2 knots.

While completing a skydiving flight, the aircraft suffered an airframe failure. Control was lost and it crashed near the Perris Valley Airport. Five occupants were rescued while a passenger was killed.