Jeju Air and the South Korean airline industry continue to feel the impacts of accidents beyond a reduced flight schedule. The airline currently has 260 billion won ($177 million) in deferred revenue from passengers who have booked their tickets but have not yet flown.

The exact cause of the Boeing 737-800 crash is still unknown, but investigators have pointed to a bird strike, faulty landing gear and the runway barrier as possible issues.

South Korean investigators said Friday they expected to find more human remains as they began lifting the wreckage of the Jeju Air jet that crashed on landing last weekend killing all but two of the 181 passengers and crew aboard.