Greek authorities baffled by strange circumstances of crash

Coroners investigating the crash of a Cypriot airliner that killed all 121  people on board ruled out on Friday that some may have been made unconscious by carbon monoxide but were still examining whether other fumes knocked out the crew and passengers.
    
Chief Athens coroner Fillipos Koutsaftis said tests were carried out on the co-pilot, 3 female flight attendants, an infant, and a random adult.

He said other tests were being done to see if something else could have left passengers and crew unconscious before the Boeing 737-300 flying from Larnaca, Cyprus, crashed into a mountainside Sunday.

He said a few more days were needed to run those toxicological tests."This was the fastest test and the most secure," he said after meeting Justice Minister Anastasios Papaligouras. "We are still doing tests for other gases, poisons, drugs and
alcohol."

Also read: Cypriot plane crashes in Greece, 121 dead

There has been speculation that an electrical fire or some other cause could have flooded the cabin with carbon monoxide, or another gas, causing those on board to lose consciousness.

Greece's Deputy Fire Chief Andreas Kois said missing parts of a voice recorder were found near the burned wreckage of flight ZU522.

Investigators have already sent one of the black boxes, the flight data recorder, to France for analysis.
    
France's Inquiry and Analysis Bureau, which was analysing the recorder, said the box "was exposed to fire but its external appearance shows no deformations linked to the impact."