Hmmm... I used to think that an FBO wouldn't fill O2 tanks with compressed air.
HISTORY OF THE FLIGHT
On April 1, 1997, at about 1452 eastern standard time, a Cessna 337D Skymaster, N2685S, collided with the ground shortly after being cleared by Air Traffic Control to climb to 25,000 feet. Air Traffic Controllers observed the airplane going through its assigned altitude and leveling at 27,700 feet. Then the aircraft was observed at 26,000 feet, and subsequent contact was lost. The aircraft broke up during its uncontrolled descent and the cabin section came to rest in a tree at the Ft. Cherry Hill Gulf Resort in Hickory, Pennsylvania. The airplane was operated by the private pilot under the provisions of Title 14 CFR Part 91. Visual meteorological conditions prevailed and an IFR flight plan was filed. The pilot sustained fatal injuries and the passenger sustained minor injuries. The flight had originated at Williamsburg, Pennsylvania about 1345 for the purpose of aerial photography.
According to the passenger/employee, the airplane was fueled and a portable oxygen bottle was filled prior to takeoff at the Youngstown Elser Airport, North Lima, Ohio by Gemco Aviation Services, Inc....
...The FAA Inspector, asked Mr. Stanko where he purchased his oxygen. He indicated that it was purchased from AGA Gas, 1055 North Meridian Road, Youngstown, Ohio, 44511. Mr. Stanko produced an invoice from AGA Gas, dated October 3, 1996. The invoice shows the purchase to be Breathing Air-Grade D(K), one cylinder purchased. The last aircraft serviced was a Mooney TLS N1065S. Mr. Stanko contacted the owner of the Mooney TLS to inquire if he was having any breathing problems with his oxygen. The owner indicated he had not. Mr. Stanko and the FAA Inspector walked to a storage building where the oxygen service cart was kept. Upon viewing the oxygen service cart, the Inspector noticed the four cylinders on the cart were painted Yellow. Further examination of the bottles found the following placard on each cylinder: AIR COMPRESSED UN1002 BREATHING AIR, Lot number 12 2000 (6000 D609) non-flammable gas 2.
Mr. Stanko stated he had been purchasing oxygen from AGA since 1989. His last purchase was October 3, 1996, the invoice verifies this statement. Mr. Stanko indicated that when he ordered oxygen from AGA he specifically stated that this oxygen was to be used for aircraft oxygen system servicing. He said to his knowledge, the cylinders in question have always been yellow.
On April 8, 1997 all four yellow cylinders were transported to AGA Gas, Inc., Corporate Headquarters in Cleveland, Ohio for analytical testing of the contents of each cylinder. The test results were the same for each cylinder and indicated that they contained compressed breathing air at about 21 percent oxygen, not aviator oxygen.
