The National Transportation Safety Board (NTSB) has issued an urgent safety recommendation asking the FAA and Transport Canada to require all operators of De Havilland Canada DHC-3s to conduct an immediate one-time inspection of horizontal stabilizer actuator lock rings on the aircraft. The recommendation (PDF) follows the Board’s identification of a possible safety issue with the lock ring on a DHC-3 Turbine Otter that crashed in Mutiny Bay, Washington, on Sept. 4. The pilot and all nine passengers on board were killed in the accident.
This is a companion discussion topic for the original entry at https://www.avweb.com/flight-safety/accidents-ntsb/ntsb-issues-urgent-safety-recommendation-for-dhc-3s