HISTORY OF FLIGHTOn July 2, 2023, about 1510 Alaska daylight time, a Piper PA-32-300, N1132Q, sustained substantial damage when it was involved in an accident near Old Harbor, Alaska. The pilot and two passengers were seriously injured, and two passengers were fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 135 non-scheduled passenger flight. The airplane departed from Old Harbor Airport (OLH), Old Harbor, Alaska, about 1504 and was transporting four passengers, their baggage, and cargo to Kodiak, Alaska. The pilot reported the airplane was able to maintain a climb rate of 500 ft per minute and that the engine was maintaining 2,500 rpm and 25 inches of manifold pressure. While flying up the valley, the pilot determined that the airplane needed 200 more feet of altitude to cross over the 950-ft mountain pass. He did not think the airplane was going to be able to climb high enough to clear the pass and planned to make a 180° turn to gain more altitude. He wanted to make the turn to the left, so he maneuvered the airplane to the right side of the valley; however, the airplane “stopped climbing,” though the engine indications remained normal. Before he could make the left 180° turn, the airplane ran out of altitude and impacted terrain. The pilot reported no mechanical issues with the airplane. Passengers reported that the pilot maintained full engine power and there was no change in engine power before impact. A pilot in another airplane with a similar load departed two minutes before the accident airplane, flew the same route, and reported that his airplane had no performance issues with climbing and flying through the pass. WRECKAGE AND IMPACT INFORMATIONThe airplane impacted two mountain spurs before coming to rest on a third spur at an elevation of about 750 ft. During the accident sequence, the right wing, empennage, and fuselage were substantially damaged. The engine separated from the airplane. All of the airplane’s major components were located at the accident site. During a postaccident examination of the engine, no abnormalities were observed that would have prevented normal operation. TESTS AND RESEARCHAccording to the Piper PA-32-300 Flight Manual, the maximum takeoff gross weight of the airplane is 3,400 pounds.

The following weights were used to estimate the airplane's gross weight at takeoff: · Empty weight of airplane: 1,850 pounds · Fuel, 30 gallons @ 6 pounds per gallon: 180 pounds · Total pilot and passenger weights: 970 pounds · Total cargo/baggage weight: 290 pounds

The National Transportation Safety Board (NTSB) investigator-in-charge (IIC) estimated the gross weight of the airplane at takeoff to be 3,290 pounds, or approximately 110 pounds below the maximum takeoff gross weight of 3,400 pounds. Cargo, except for the fish boxes, were weighed on a scale. 48 pounds was used as an average weight for each fish box. Weights used for the surviving pilot and passengers were obtained from each individual, and non-surviving passenger weights were obtained from the medical examiner.