Local mayor Theo Weterings told reporters Saturday that the runway the Turkish plane was trying to land on would be reopened Sunday night for the first time since the crash. The plane, carrying 135 passengers and crew from Istanbul, crashed one mile (1.5 kilometers) short of the runway.
A Turkish pilots' group claimed that turbulence from a large plane landing at Amsterdam's Schiphol airport shortly before the doomed flight may have caused the crash.
Turkey Airline Pilots' Association Secretary-General Savas Sen said late Friday that a large Boeing 757 had landed at Schiphol Airport two minutes earlier. Sen said that plane most likely created "wake turbulence" that hampered the Turkish aircraft's landing.
Wake turbulence forms behind an aircraft as it passes through the air.
"All possible causes are (being) investigated and turbulence is known to have caused problems in the past, so you never know," Sanders said.
The investigators on Saturday continued to analyze flight data and cockpit recordings retrieved from the Boeing 737-800's "black boxes" and hope to be able to give a preliminary cause of the crash next week.
In Istanbul, the head of Turkish Airlines' board of directors paid tribute to pilots Hasan Tahsin Arisan, Olgay Ozgur and Murat Sezer and flight attendant Ulvi Murat Eskin at their funerals.
Candan Karlitekin said that, of the 135 people on board, 126 survived due to the pilots' skills.
"It was a miracle but a sad miracle," Karlitekin said in a teary address. "They saved the lives of 126 people and made their families happy, but they died themselves."
Local health official Peter Koehne said 44 survivors remained hospitalized Saturday and one was still in critical condition.
Boeing Co. said late Friday that three of the American victims were its employees and a fourth Boeing worker remained hospitalized.