Nowadays, most of pilot audio headsets inside aircraft cockpit are connected with wires to the access point station. However, a wireless connectivity for headsets constitutes an advantage in terms of comfort and offers flexibility to the pilots. The most dominant wireless technology is based on radio-frequencies spectrum and presents some drawbacks in the context of aeronautics, especially regarding security and reliability due to interferences with other electronics equipment. We study in this article an alternative communication system for pilot headsets, based on optical wireless technology. Optical rays have the advantage of being confined into the cockpit and not interfering with radiofrequencies. From optical channel model in the cockpit, we evaluate the potentiality of optical wireless links in terms of communication reliability.