Investigation Summary
The accident occurred during a period of heavy instrument meteorological conditions (IMC) where pilots were unable to maintain visual separation. Both aircraft were operating under instrument flight rules when they occupied the same airspace. The force of the collision was catastrophic for the first airframe, which disintegrated in flight. The second airframe remained partially controllable for a brief period, descending in a glide before a post-impact explosion occurred several miles from the primary debris field. Search and rescue operations were hampered by the wide distribution of the wreckage, which spanned approximately five miles of rugged Texas hill country.
Final Conclusions
The primary cause of the accident was a mid-air collision resulting from the inability of the flight crews to maintain adequate separation while flying on instruments in restricted visibility.
Video Analysis
No video analysis linked for this case file yet.
Systems & Failure Modes
Flight Instruments
The primary tools used by the pilots to maintain aircraft attitude and heading while flying in clouds or poor visibility.
Air Traffic Separation
The procedural or visual methods used to prevent aircraft from occupying the same space, which failed during this instrument flight.
Interesting Facts
- 01The collision occurred in the hills near San Antonio, South Texas.
- 02All 16 crew members aboard the two aircraft were killed.
- 03The pilots were flying on instruments at the time of the collision due to poor visibility.
- 04Wreckage from the first aircraft was scattered over a five-mile area.
- 05The second aircraft exploded only after hitting the ground several miles away.
Location
APPROXIMATE POSITION · AIRPORT LEVEL · Coordinates are the estimate published in the official investigation report. The ring shows the accuracy the record supports, not the point of impact.