Investigation Summary
The flight was chartered by a community of Bavarian bus company owners for a tour of Germany. On the morning of the accident, Los Rodeos Airport was shrouded in thick fog with visibility reported as low as 150 meters (500 feet). Despite these conditions, which were below the aircraft's certified limits, the flight was cleared for takeoff. The Convair 990, a high-speed jet known for its complex handling, reached an altitude of approximately 91 meters (300 feet) before the pilot initiated a sharp, steep turn. In the absence of visual references, the crew lost situational awareness. The aircraft's left wing struck the ground 325 meters past the runway threshold, rupturing fuel tanks and triggering a massive explosion that killed everyone on board instantly.
Final Conclusions
The Spanish air crash investigation council concluded the primary cause was the captain's loss of control due to a somatogyral illusion caused by low visibility. The crew failed to rely on their flight instruments during the critical initial climb phase. Contributing factors included the air traffic controller's decision to permit takeoff in weather conditions below the airport's and aircraft's minimums. The investigation also highlighted the lack of automated weather reporting systems at the time.
Video Analysis
Spantax Flight 275 Aftermath Footage | 3 December 1972 — Historical footage showing the wreckage and aftermath of the Spantax Flight 275 crash at Tenerife Los Rodeos Airport.
Watch on YouTube ↗If playback is blocked, the owner has disabled embedding — use the link above.
Systems & Failure Modes
Vestibular System
The pilot's internal sense of balance failed due to a somatogyral illusion, causing him to perceive the aircraft's motion incorrectly in the fog.
General Electric CJ805-23 Engines
The four aft-fan engines were inspected and ruled out as a cause of the crash.
Interesting Facts
- 01The accident was the deadliest in Spain until the 1977 Tenerife airport disaster.
- 02All 148 passengers were West German tourists returning from the Canary Islands.
- 03The aircraft had previously served with American Airlines and Middle East Airlines.
- 04The captain was a 32-year-old former Spanish Air Force pilot.
- 05The Convair 990 Coronado was one of the fastest commercial jetliners of its era.
Safety Actions & Advisories
ATIS Implementation
The investigation recommended that ATC inform crews about weather conditions via the newly developed Automatic Terminal Information Service (ATIS), which was introduced at the airport a year later.
Spatial Disorientation Training
The council recommended mandatory training for pilots on recognizing and recovering from sensory and spatial illusions.
Known Controversies & Unanswered Questions
Exclusion of German Investigators
Reference ↗Spanish authorities barred German investigators from participating in the official inquiry, leading to diplomatic tension and questions regarding the transparency of the findings.