Investigation Summary
The flight was a non-scheduled charter operated on behalf of the National Union of Students, returning a group of holidaymakers from Majorca to London via Barcelona. The aircraft departed Barcelona-El Prat Airport and was operating under VFR. Nineteen minutes after takeoff, while still in its climb phase, the aircraft encountered instrument meteorological conditions (IMC). Instead of requesting an instrument flight clearance from Air Traffic Control, the pilot continued into the cloud. The aircraft had drifted off its intended course to the north-east—reported as 10 nautical miles by Spanish authorities and 16 km (approx 8.6 nm) by other records—which placed it on a trajectory toward the highest peak in the Montseny Range. The captain was experienced and had been with Transair since 1956. While he had not previously flown this specific route, he had passed the regulatory tests required by the Ministry of Aviation concerning route knowledge, terrain, and navigational facilities. The Spanish investigation found no evidence of mechanical failure or ATC error, concluding that the pilot likely did not realize the 1,712-meter mountain was in the aircraft's path when entering the mist.
Final Conclusions
The Spanish Director-General of Civil Aviation concluded the accident was caused by the infringement of regulations and international standards for flight over national territory. Specifically, the pilot entered cloud without advising air traffic control or obtaining an instrument flight clearance. The British Air Ministry closed the case without further allocating responsibility, concurring that the pilot should not have entered IMC while on a VFR flight plan.
Photographic Evidence (1)
Video Analysis
No video analysis linked for this case file yet.
Airframe & Maintenance
Systems & Failure Modes
Visual Flight Rules (VFR)
A set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. The pilot failed to maintain visual separation from terrain when entering cloud.
Navigation Aids
The investigation confirmed there were no defects in the ground-based air navigation aids at the time of the accident.
Interesting Facts
- 01The flight was a weekly charter for the National Union of Students.
- 02The passenger manifest consisted of 28 British students and one teacher.
- 03The aircraft drifted to the north-east, placing it between 8.6 and 10 nautical miles away from its intended flight path at the time of impact.
- 04The crash occurred 19 minutes after departure from Barcelona.
- 05This was the first fatal accident for Transair since its formation in 1947.
- 06The crash site was at an altitude of approximately 5,600 feet.
- 07The aircraft was manufactured in 1945 with MSN 16112/32860.