article_snippet: A few months later, the Civil Aeronautics Board blamed the accident primarily on the pilot's lack of qualification and certification to fly solely by instruments and secondarily on an inadequate weather briefing.
article_snippet: Now, the National Transportation Safety Board, the successor to the Civil Aeronautics Board, may be taking another look.
article_snippet: The NTSB received a letter from aviation enthusiast L.J. Coon, a self-described retired pilot and aircraft dispatcher, asking it to look at other possible contributing factors to Buddy Holly plane crash.
article_snippet: aviation enthusiast L.J. Coon, a self-described retired pilot and aircraft dispatcher include the aircraft's weight and balance calculations (for passengers, baggage and fuel), possible issues with rudder panels and possible carburetor Induction icing, Coon told CNN in an email.
article_snippet: The NTSB wrote in February, saying The NTSB would examine the information he provided, Coon's email said.
article_snippet: The NTSB never fully closes a case, but any petition to re-examine a crash needs to show that there is new information suggesting the original probable cause is incorrect, The NTSB spokesman Eric Weiss said.
article_snippet: The NTSB has two months to review the petition and decide whether there's new information that would make The NTSB revisit a case.