Boston-Logan

The pilot was transporting six passengers on a scheduled revenue flight in instrument meteorological conditions. The pilot familiarized himself with the weather conditions before departure and surmised that he would be executing the instrument landing system (ILS) instrument approach for the landing runway at the destination airport. The operator prohibited approaches to runways less than 4,000 ft long if the tailwind component was 5 knots or more. The landing runway was 498 ft shorter than the operator-specified length. The pilot said he obtained the automated weather observing system (AWOS) data at least twice during the flight since he was required to obtain it before starting the instrument approach and then once again before he crossed the approach’s final-approach-fix (FAF). Though the pilot could not recall when he checked the AWOS, he said the conditions were within the airplane and company performance limits and he continued with the approach. A review of the wind data at the time he accepted the approach revealed the tailwind component was within limitations. As the airplane approached the FAF, wind speed increased, and the tailwind component ranged between 1 and 7 knots. Since the exact time the pilot checked the AWOS is unknown, it is possible that he obtained an observation when the tailwind component was within operator limits; however, between the time that the airplane crossed over the FAF and the time it landed, the tailwind component increased above 5 knots. The pilot said the approach was normal until he encountered a strong downdraft when the airplane was about 50 to 100 ft above the ground. He said that the approach became unstabilized and that he immediately executed a go-around; the airplane touched down briefly before becoming airborne again. The pilot said he was unable to establish a positive rate of climb and the airplane impacted trees off the end of the runway. The accident was captured on three airport surveillance cameras. A study of the video data revealed the airplane made a normal landing and touched down about 500 ft from the beginning of the runway. It was raining heavily at the time. The airplane rolled down the runway for about 21 seconds, and then took off again. The airplane entered a shallow climb, collided with trees, and caught on fire. All seven occupants were seriously injured and the airplane was destroyed.

Following an uneventful flight from Boston-Logan, the crew initiated the descent to Gainesville Airport. Weather conditions at destination were considered as marginal due to the presence over the area of the tropical storm 'Colin'. After landing on a wet runway, the aircraft rolled for about 1,000 feet then veered off runway to the left. While contacting soft ground, the left main gear and the nose gear collapsed then the aircraft came to rest in a grassy area. All three occupants evacuated safely and the aircraft was damaged beyond repair.

The pilot of the multi engine airplane, operated by a regional airline, was conducting a positioning flight in night instrument meteorological conditions. After takeoff, the airplane made a slight left turn before making a right turn that continued until radar contact was lost. The airplane reached a maximum altitude of 700 feet before impacting terrain about 3 miles northwest of the departure airport. Post accident examination of the wreckage did not reveal any preimpact failures. The weather reported at the airport, about the time of the accident, included a visibility of 5 statute miles in light rain and mist and an overcast ceiling at 400 feet. Analysis of the radar and weather data indicated that, with the flight accelerating and turning just after having entered clouds, the pilot likely experienced spatial disorientation.

During the flight, the private pilot/operator was most likely seated in the left seat. He obtained his instrument rating about 7 months prior to the accident, and had accumulated approximately 300 hours of flight experience; of which, about 80 hours were in the accident airplane. The commercial pilot/company pilot was most likely seated in the right seat. He had accumulated approximately 1,000 hours of flight experience; of which, about 125 hours were actual instrument experience, and 80 hours were in the accident airplane. The commercial pilot had filed a flight plan to the wrong airport, received a weather briefing for the wrong airport, and therefore was not aware of the NOTAM in effect for an out of service approach lighting system at the destination airport. When the commercial pilot realized his error, he changed the flight plan, but did not request another weather briefing. According to radar information, the airplane flew the instrument landing system runway 5 approach fast, performed a steep missed approach to 1,000 feet, and then disappeared from radar, consistent with a loss of control during the missed approach. No preimpact mechanical malfunctions were identified with the airplane during the investigation. The reported weather at the accident airport included an overcast ceiling at 200 feet, visibility 1 mile in light rain and mist, and wind from 160 degrees at 4 knots. The investigation could not determine which pilot was flying the airplane at the time of the accident.

The Boeing 767 departed Boston-Logan Airport at 0814LT on a regular schedule service to Los Angeles, carrying 56 passengers and a crew of nine. Few minutes later, the aircraft was hijacked by terrorists who modified the flight path and flew direct over New York. At 0903LT, the aircraft struck the South Tower of the World Trade Center, between 78th and 84th floor. The aircraft disintegrated on impact and all 65 occupants were killed. The tower later collapsed. The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation. The Safety Board provided requested technical assistance to the FBI, and this material generated by the NTSB is under the control of the FBI. The Safety Board does not plan to issue a report or open a public docket.

The Boeing 767 departed Boston-Logan at 0759LT on a regular schedule service to Los Angeles, carrying 81 passengers and a crew of 11. Few minutes later, the aircraft was hijacked by terrorists who modified the flight path and flew direct over New York. At 0845LT, the aircraft struck the North Tower of the World Trade Center, between 94th and 99th floor. The aircraft disintegrated on impact and all 92 occupants were killed. The tower later collapsed. The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation. The Safety Board provided requested technical assistance to the FBI, and this material generated by the NTSB is under the control of the FBI. The Safety Board does not plan to issue a report or open a public docket.

The pilot accepted an intersection departure and waived the wake turbulence holding time. A Boeing 737-300 departed ahead of him, and according to pilot, the Boeing's nosewheel lifted off the runway just as it passed him. The pilot also noted that the Boeing and its exhaust smoke drifted to the left of the runway's centerline. A wake turbulence advisory and takeoff clearance were issued by the tower controller and acknowledged by the pilot. The pilot initiated the takeoff, and after liftoff, the left wing dropped. It contacted the runway, and the airplane rolled inverted. The airplane then slid off the left side of the runway and a post-crash fire developed.

The airplane was at FL 330 when the flightcrew determined that there was smoke in the cabin cargo compartment. An emergency was declared and the flight diverted to Newburgh/Stewart International Airport and landed. The airplane was destroyed by fire after landing. The fire had burned for about 4 hours after after smoke was first detected. Investigation revealed that the deepest and most severe heat and fire damage occurred in and around container 06R, which contained a DNA synthesizer containing flammable liquids. More of 06R's structure was consumed than of any other container, and it was the only container that exhibited severe floor damage. Further, 06R was the only container to exhibit heat damage on its bottom surface, and the area below container 06R showed the most extensive evidence of scorching of the composite flooring material. However, there was insufficient reliable evidence to reach a conclusion as to where the fire originated. The presence of flammable chemicals in the DNA synthesizer was wholly unintended and unknown to the preparer of the package and shipper. The captain did not adequately manage his crew resources when he failed to call for checklists or to monitor and facilitate the accomplishment of required checklist items. The Department of Transportation hazardous materials regulations do not adequately address the need for hazardous materials information on file at a carrier to be quickly retrievable in a format useful to emergency responders.

The airplane was on a positioning flight at night, cruising at 6,000 feet. Also, the pilot was operating on an IFR flight plan and was on his 6th flight after reporting for duty at 1530 est. During a frequency change and radio check at 0207 est, the pilot's response was normal. Radar data revealed that about 16 minutes later, the airplane entered a right turn, then disappeared from radar at about 0222 est after about 255° of turn. It impacted the ground in a steep nose down descent; debris from the airplane was found down to 6 feet below the surface. During the final 15 minutes of flight, there were no radio transmissions on the assigned frequency. No preimpact mechanical failure or malfunction was found. The propeller blades had s-curves or were bent forward; they also had leading edge impact damage and Rotational scoring. The pilot had flown in excess of 120 hours (110 hrs at night) in the preceding 30 days. There was evidence that he may have lacked crew rest during the day(s) before the accident.