Phoenix

According to the line service technician who worked for the fixed-base operator (FBO), before taking off for the air ambulance flight with two medical crewmembers and one patient onboard, the pilot verbally asked him to add 40 gallons of fuel to the airplane, but the pilot did not specify the type of fuel. The line service technician drove a fuel truck to the front of the airplane and added 20 gallons of fuel to each of the multiengine airplane's wing tanks. The pilot was present during the refueling and helped the line service technician replace both fuel caps. Shortly after takeoff, a medical crewmember called the company medical dispatcher and reported that they were returning to the airport because smoke was coming from the right engine. Two witnesses reported seeing smoke from the airplane Several other witnesses reported seeing or hearing the impact and then immediately seeing smoke or flames. On-scene evidence showed the airplane was generally eastbound and upright when it impacted terrain. A postimpact fire immediately ensued and consumed most of the airplane. Investigators who arrived at the scene the day following the accident reported clearly detecting the smell of jet fuel. The airplane, which was equipped with two reciprocating engines, should have been serviced with aviation gasoline, and this was noted on labels near the fuel filler ports, which stated "AVGAS ONLY." However, a postaccident review of refueling records, statements from the line service technician, and the on-scene smell of jet fuel are consistent with the airplane having been misfueled with Jet A fuel instead of the required 100LL aviation gasoline, which can result in detonation in the engine and the subsequent loss of engine power. Postaccident examination of the engines revealed internal damage and evidence of detonation. It was the joint responsibility of the line technician and pilot to ensure that the airplane was filled with aviation fuel instead of jet fuel and their failure to do so led to the detonation in the engine and the subsequent loss of power during initial climb.In accordance with voluntary industry standards, the FBO's jet fuel truck should have been equipped with an oversized fuel nozzle; instead, it was equipped with a smaller diameter nozzle, which allowed the nozzle to be inserted into the smaller fuel filler ports on airplanes that used aviation gasoline. The FBO's use of a small nozzle allowed it to be inserted in the accident airplane's filler port and for jet fuel to be inadvertently added to the airplane.

The right engine lost power after an uncontained engine failure during the initial takeoff climb. The airplane would not climb and the pilot was forced to land. The pilot selected a street for a forced landing area. The pilot landed gear up while maneuvering to avoid hitting street light poles and automobiles. After touchdown, the airplane slid into a block wall. A fire erupted as a result of a post impact fuel leak in the left wing. The airplane's engines were examined at the manufacturer's facilities. The right engine exhibited evidence of an uncontained separation of the second stage turbine rotor disk. Examination of the disk fragments revealed a low cycle fatigue fracture mode. The fatigue initiated from multiple areas at and adjacent to the inside diameter bore surface near the aft side of the disk. According to the engine manufacturer, the multiple indication areas were associated with uninspectable size porosity and the primary carbides in the cast material. There were no material or casting defects detected on any of the fractures through the wheel.

The pilot received a weather briefing before takeoff, but did not file a flight plan. During the flight, the aircraft (Douglas A-26C, N4813E) crashed in mountainous terrain at an elevation of about 11,200 feet near Baldy Mountain. Scouting personnel, who were camped in the vicinity, reported the weather was poor with a low ceiling, restricted visibility, rain and hail. An examination of the crash site revealed the aircraft impacted in a steep, right wing low, nose low attitude. Much of the wreckage collapsed into the impact crater. The degree of destruction was consistent with a high speed impact. Chordwise scratch marks were found on the prop blades. Several tree branches and limbs at the crash site had smooth cuts. The pilot was type rated in the A-26, but his certificate had a limitation that restricted him to flying it in 'VFR only.' Neither the pilot nor the rated passenger held an instrument rating. The rated passenger did not have a type rating in the A-26, but the pilot possessed a waiver to fly N4813E as a single pilot airplane. Both occupants were killed.

On final approach about 1.5 miles from the airport the power loss occurred as the pilot attempted to add power. After flying over a ridge and several trees the aircraft touched down in the rough terrain and caught fire. The fire appeared to have started in the vicinity of the fuel strainer and progressed rearward. There were no indications of fire until the aircraft came to rest. The only discrepancy noted during inspection of the aircraft and engine was that 3 left bank fuel injectors were blocked with a substance later identified as primarily being dirt. Both occupants escaped unhurt.

At 1027 the pilot received a weather briefing for Holbrook, AZ. The pilot was told of forecasts for "at least moderate icing in clouds or in precipitation above the freezing level" and the briefer stated "I guarantee you moderate to severe turbulence..." for a route into Holbrook. The pilot later got weather info for Amarillo, TX and filed an IFR flt plan to Amarillo. The aircraft departed at 1150. At 1204 the pilot reported he had an engine problem. Radar plots indicate the aircraft was maintaining a climb of about 500 fpm up to 11,200 ft. Thirty seconds later the aircraft had descended to 8,500 ft. Radio and contact was lost about 1207. Based on a weather study the probable meteorological conditions that existed about the time & in the area of the accident were moderate to severe turbulence below 12,000 ft msl & while in the clouds above freezing level the aircraft likely encountered moderate to severe rime icing. The aircraft was not certificated for flt into known icing conditions. The flight was transporting prisoners for various government agencies.

At 1702, Scenic Airlines flight 306, a Cessna 404, VFR commuter flight to Phoenix, crashed approximately three miles south of runway 21 after takeoff from the Grand Canyon National Park Airport. The aircraft cut a swath through a densely wooded area on a magnetic heading of 165° and came to rest upright about 230 feet from the initial point of impact with trees. Impact forces and an intense fire destroyed the aircraft. The pilot and six of the seven passengers were killed in the accident. One passenger survived the accident but died five days later as a result of thermal injuries.

While descending to Phoenix Airport, both engines failed simultaneously. The pilot reduced his altitude and attempted an emergency landing few miles from the airfield. The aircraft came to rest on its belly and was damaged beyond repair. The pilot escaped unhurt.

While in cruising altitude on a flight from Yuma to Phoenix, the left engine caught fire after the exhaust pipe separated in flight. The pilot reduced his altitude and attempted an emergency landing in a desert area located near Hyder, AZ. The airplane crash landed and came to rest in flames. It was destroyed while both occupants escaped with minor injuries.

After touchdown at Hollywood-Burbank Airport, the crew started the braking procedure but the airplane was unable to halt within the remaining distance. It overran and eventually collided with a fence. All five occupants escaped uninjured while the aircraft was damaged beyond repair.

While in cruising altitude, the twin engine airplane entered an uncontrolled descent and crashed in flames near Farson. The pilot, sole on board, was killed.