Originally Posted by
Carbon Bootprint
If it's the one I'm thinking of that went down in the swamp in Terrebone Parish, it killed the crew and six pax, though one survived. However, that incident occurred in the afternoon rather than at night. If I'm not mistaken, there was some suspicion of an aftermarket acrylic windscreen as a contributing factor.
This accident is covered in the very first module of the new Rotorcraft section of the FAA Lessons Learned library.
Lessons Learned
The module discusses the impact of the windscreen modification and also includes some additional information about the threat of birdstrikes to helicopters.