Accidents
Jet blast damaged controls of Air Moorea Twin Otter
The Air Moorea DHC-6-300 Twin Otter turboprop that crashed near Moorea Island on Aug.

The Air Moorea DHC-6-300 Twin Otter turboprop that crashed near Moorea Island on Aug. 9, 2007, took off with an almost failed pitch-control cable, due to recent exposure to jet blast, according to French Bureau d’Enquêtes et d’Analyses (BEA) chief Paul-Louis Arslanian. Other causes include the omission of cable inspections and the use of stainless-steel cables, which are more prone to wear. The crash killed the pilot and all 19 passengers shortly after takeoff for a seven-minute flight between Moorea and Tahiti, French Polynesia.

The cable failed immediately after the pilot commanded flaps up and exerted force on the control wheel to offset the pitch associated with the flaps’ retraction. Investigators determined that the pilot applied a force close to 50 daN (110 pounds of force). The new cable had a resistance of 782.5 daN or 1,760 pounds of force, so investigators concluded that the cable was weakened before takeoff.

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