Investigation Summary
The flight was a multi-leg journey from Paris to Santiago, Chile. During the approach to Guadeloupe, the crew faced challenging conditions including a low cloud ceiling of 1,000 feet and a severe thunderstorm. The airport's VOR (VHF Omnidirectional Range) was out of service, forcing the crew to rely on the Non-Directional Beacon (NDB) and their onboard ADF equipment. The thunderstorm caused 'static' or 'wandering' ADF needles, a known phenomenon where the instrument points toward lightning strikes rather than the radio station. It is believed the crew mistook a false needle swing or a 'false null' caused by the electrical activity for the actual station passage over the NDB. Believing they were on the correct path, the crew reported being over the NDB at 5,000 feet and turned east for their final approach. In reality, they were 15 kilometers west of the intended track. This error placed the aircraft directly in the path of the mountains on Basse-Terre island, where it struck a forest at an altitude of 1,400 feet. The lack of terminal radar at Pointe-a-Pitre in 1962 meant that Air Traffic Control could not see the aircraft's actual position to correct the navigational deviation.
Final Conclusions
The investigation attributed the accident to three primary factors: the breakdown of the ground-based VOR navigation aid, insufficient meteorological information provided to the flight crew regarding the severity of the local weather, and the atmospheric effects of the thunderstorm on the ADF indicators, which led to a fatal navigational error.
Photographic Evidence (1)
Video Analysis
No video analysis linked for this case file yet.
Airframe & Maintenance
Systems & Failure Modes
Automatic Direction Finder (ADF)
A radio-navigation instrument that automatically displays the relative bearing to a ground-based NDB station; susceptible to 'thunderstorm effect' where the needle points to lightning.
VHF Omnidirectional Range (VOR)
A short-range radio navigation system for aircraft; the ground station at Pointe-à-Pitre was unserviceable at the time of the accident.
Non-Directional Beacon (NDB)
A ground-based radio transmitter used as a navigation aid; the crew used this as their primary reference point for the approach.
Interesting Facts
- 01The aircraft was named 'Château de Chantilly' and was only four months old.
- 02The crash occurred 25 km west-northwest of Pointe-à-Pitre-Le Raizet Airport.
- 03Among the fatalities was Justin Catayée, a prominent French Guianan politician.
- 04This was the second fatal Air France Boeing 707 crash in less than three weeks, following the Flight 007 disaster at Orly.
Safety Actions & Advisories
Navigation Aid Redundancy
The accident highlighted the dangers of relying on ADF navigation in tropical storm environments, reinforcing the need for reliable VOR and ILS installations in mountainous terrain.
Known Controversies & Unanswered Questions
Captain's Qualifications
Reference ↗Following the accident, it emerged that a senior official had previously informed the Air France Chief Executive in writing that he did not believe the captain was capable of qualifying on the Boeing 707.