Thousands of seat-belt buckles and attachments installed in airliners and corporate jets are the subject of two separate recommendations. The FAA published a special airworthiness information bulletin alleging that D-ring-type fittings can inadvertently release the seat belts attached to them. The agency recommends that all D-ring seat belt attachment fittings be replaced with an improved design fitting.
Pilots flying almost every type of business jet and airliner and some turboprops face a risk of inadvertent seatbelt release, according to a bulletin the FAA has released. Special Airworthiness Information Bulletin (SAIB) NM-06-29 warns that unguarded rotary seatbelt buckles can be activated unintentionally, possibly releasing the seatbelt at an inopportune moment.