Passenger 7 reported that everyone exited the airplane without difficulty. He recalled helping an older couple put on their life vests before they exited the airplane. He said that they were having difficulty opening the pouches that the vests were stored in so he opened the pouches for them, helped them put the vests on, and inflated one CO2 cartridge on each vest. After exiting the airplane, he swam to shore. He later found that he had inadvertently put on an infant life vest, which he said seemed “small or tight” although it “worked fine.” Passenger 7′s reported weight was 160 pounds. Passenger 8 reported that it took a few minutes for everyone to exit the airplane and that he did not notice anyone having a problem. His video showed that he obtained a life vest from the seat pocket in front of his seat. Passenger 8′s reported weight was 160 pounds. An autopsy of the fatally injured passenger was conducted by Pan Pacific Pathologists, LLC, of Wailuku, Hawaii, under the authority of the Maui Police Department. The findings listed in the autopsy report included “acute cardiac arrhythmia” and “no significant traumatic injuries.” The report noted that she was observed by another passenger “to be fearful and hyperventilating shortly before losing consciousness.” According to the autopsy report, her cause of death was “acute cardiac arrhythmia due to hyperventilation.” Review of 14 CFR 135.117, briefing of passengers before flight, revealed that section A states in part “…Before each takeoff each pilot in command of an aircraft carrying passengers shall ensure that all passengers have been orally briefed on…Location and means for opening the passenger entry door and emergency exits…Location of survival equipment…If the flight involves extended overwater operation, ditching procedures and the use of required flotation equipment.” If the pilot had provided a safety briefing, as required by Federal Aviation Administration regulations, to the passengers that included the ditching procedures and location and usage of floatation equipment, the passengers might have been able to find and use the correct size floatation device.