Flight Details
A scheduled flight departed Bethel, Alaska, with a weather dispatch release. Upon reaching the destination, Chevak, Alaska, the station manager (who was not a certified weather observer) advised the flight crew not to attempt a landing because the weather was not good.
Approach and Landing
According to the flight crew, the fog was not obscuring the runway, and they elected to make an approach. The pilot-in-command (PIC) reported that a high sink rate developed on short final and he did not apply power. He believed the landing flare would have arrested the sink rate. However, the aircraft landed hard on the right main gear.
Damage and Runway Excursion
The hard landing caused the right main gear to separate and damaged the right main wing strut. The right wing settled to the surface, and the aircraft yawed to the right, veered off the runway, and sustained further damage.
Load Manifest Non-Compliance
The load manifest did not comply with 14 CFR Part 135.63(c) or the company's operations manual.