HONG KONG — A finding by safety investigators suggested on Friday that pilots of the twin-propeller plane that crashed in Taiwan’s capital, killing at least 35 people, might have reacted to a stalled-engine alarm by shutting down the wrong engine.

With both engines stopped, the suddenly powerless plane, TransAsia Airways Flight 235, which had just departed the Taipei airport a few minutes before 11 a.m. Wednesday, dived, clipped an elevated roadway and plunged into the Keelung River.

The finding by Taiwan’s Aviation Safety Council, based on cockpit voice and flight data recorders, was preliminary and did not assign blame. It showed that the pilots had been discussing shutting down the plane’s No. 1 engine after the cockpit alarm sounded.

The plane’s No. 2 engine stopped just as power to the No. 1 engine was shut down, the Aviation Safety Council said.