The National Transportation Safety Board ( NTSB ) is an independent U. S. government investigative agency responsible for civil transportation accident investigation.

When requested, the NTSB will assist the military and foreign governments with accident investigation.

The NTSB was established in 1967 as the federal government's primary accident investigation agency for all modes of transportation – aviation, highway, rail, marine and pipeline.

The NTSB is normally the lead organization in the investigation of a transportation accident within its sphere.

The NTSB has primacy in investigating every civil aviation accident in the United States ( the Federal Aviation Administration is always a party to these investigations, but the NTSB is the investigating agency ).

For certain accidents, due to resource limitations, the Board will ask the FAA to collect the factual information at the scene of the accident ; the NTSB bases its report on that information.

The NTSB may assist in incident or accident investigations occurring outside the United States under certain circumstances.

While accident investigators from the National Transportation Safety Board ( NTSB ) traveled to the scene, arriving the following morning, there was much initial speculation that a terrorist attack was the cause of the crash.

Tests carried out on the vertical stabilizers from the accident aircraft, and from another similar aircraft, found that the strength of the composite material had not been compromised, and the NTSB concluded that the material had failed because it had been stressed beyond its design limit, despite ten previous recorded incidents where A300 tail fins had been stressed beyond their design limitation in which none resulted in the separation of the vertical stabilizer in-flight.

NTSB investigation ruled the accident was probably due to low fuel.

The NTSB in their after accident reported noted, " The performance of the flight attendants during the emergency was exceptional and probably contributed to the success of the emergency evacuation.

The NTSB concluded that the probable cause of the accident was Reid's " improper decision to take off into deteriorating weather conditions ( including turbulence, gusty winds, and an advancing thunderstorm and associated precipitation ) when the airplane was overweight and when the density altitude was higher than he was accustomed to, resulting in a stall caused by failure to maintain airspeed.

This was supported by the NTSB, which determined that the pressure induced by the intense media attention was a " contributing factor " in the accident.

The NTSB has since finished its investigation of the accident.

Congress, the Federal Bureau of Investigation ( FBI ), and the National Transportation Safety Board ( NTSB ) investigated the crash, and found it to be an accident caused by crew error.

The official NTSB accident report lists the probable cause as " The pilot's intentional flight into the ground for the purpose of suicide while impaired by alcohol.

The NTSB never determined the cause of the accident and the resort sold the airline.

The NTSB report showed that the plane had several instances of maintenance work related to cabin pressure in the months leading up to the accident.

* NTSB accident report of the helicopter accident in 1977

The NTSB attributed the accident to lack of the ability to detect microbursts aboard aircraft-the radar equipment aboard aircraft at the time was unable to detect wind changes, only thunderstorms.

Three years after the accident the NTSB was compelled to re-open the investigation into the crash, after submissions were received that the person who was suspected of driving the " unauthorized vehicle " had actually left the airport about fifteen minutes before the aircraft crashed.

According to the National Transportation Safety Board ( NTSB ) accident report, they learned that the winds were changing direction and that a wind shear alert had sounded on the airport due to a thunderstorm nearby.

The official NTSB report of October 26, 2004 stated that the cause of the crash was the overuse of the rudder to counter wake turbulence.

Previous simulator training did not properly reflect " the actual large build-up in sideslip angle and sideloads that would accompany such rudder inputs in an actual airplane ", according to the NTSB final report.

The official NTSB report said that the probable cause was mechanical.

She is recognised in the NTSB report for this " unselfish act.

* Aircraft Incident and Accident report ( contains text of above NTSB report and a great deal more information )

* Famous People Who Died in Aviation Accidents, 1980s ( This ties Keith Green to the Aircraft Registration Number in the NTSB report )

* NTSB report LAX97GA205 detailing a BLM OV-10A fatal crash, archived on Landings. com

* NTSB report on crash

According to a USAF timeline, a series of military planes provided an emergency escort to the stricken Lear, beginning with an F-16 from Eglin Air Force Base, about an hour and twenty minutes ( 9: 33 EDT to 9: 52 CDT – see NTSB report on the crash ) after ground controllers lost contact.

* NTSB Aircraft Accident Report – probable cause investigation report on Munson's plane crash

* NTSB executive summary report

The Aeronáutica Civil prepared a final report of its investigation in September 1996, which was released through the U. S. NTSB.

Radar plot of the plane's flight path, from the NTSB report

Damage to the rear of the plane, from the NTSB report

Locations of passengers indicated by lack of injury, severity of injury, and reason of death from the NTSB report

* NTSB Accident report of United Airlines Flight 232

The investigation was carried out by the American National Transportation Safety Board ( NTSB ), and they released a 400-page report on their findings, which was not immediately published in the Gulf.

The National Transportation Safety Board's ( NTSB ) final report on the crash of TWA 747 concluded “ The fuel air vapor in the ullage of the TWA flight 800 CWT was flammable at the time of the accident .” NTSB identified “ Elimination of Explosive Mixture in Fuel tanks in Transport Category Aircraft ” as Number 1 item on its Most Wanted List in 1997.

The NTSB has issued about 13, 000 safety recommendations in its history, the vast majority of which have been adopted in whole or in part by the entities to which they were directed.

Since 1990, the NTSB has maintained a Most Wanted List of Transportation Safety Improvements, in which it highlights those recommendations that would provide the most significant — and sometimes immediate — benefit to the traveling public.

* The United States National Transportation Safety Board, which usually investigates air disasters, issued a press release stating that the NTSB would assist the Federal Bureau of Investigation, and that the FBI would be " the lead investigative agency ".

The Allied Pilots Association, in its submission to the NTSB, argued that the unusual sensitivity of the rudder mechanism amounted to a design flaw which Airbus should have communicated to the airline, and pointed to ten previous incidents in which A300 tail fins had been stressed beyond their design limitation.

The U. S. National Transportation Safety Board ( NTSB ) investigated the crash and concluded it was caused by the flight instructor's improper decision to take off in poor weather conditions, his overloading the aircraft, and his failure to maintain airspeed, which resulted in a stall.

The National Transportation Safety Board ( NTSB ) investigation concluded that the probable cause was the " presence of an unauthorized vehicle on the runway which caused the pilot to attempt a go-around after touchdown to avoid a collision.

The NTSB added a safety recommendation to the FAA on its " List of Most Wanted Safety Improvements " in May 1999 suggesting a requirement for children under 2 to be safely restrained, which was removed in November 2006.

After what it said was seven years of investigation, the FAA proposed a rule in November 2005, in response to an NTSB recommendation, which would require airlines to " reduce the flammability levels of fuel tank vapors on the ground and in the air ".

Airbus has offered an optional fix, which the US NTSB has suggested to the US FAA as mandatory, but the FAA has yet to make it a requirement.

According to statements made by his colleagues to the NTSB during the Flight 990 investigation, he did not want to be promoted because, as senior F / O, he could get his preferred flight schedules, which assisted in his family situation.

After reviewing Ouimet's missive and re-evaluating the available data, the NTSB issued a revised version of the report which included Ouimet's explanation of the landing decision, though the report was still critical of Cameron's decision not to inquire about the fire itself.

The American transportation authority NTSB reports one case in which sexual activity is at least partly responsible for an aviation accident.

Not all pilots abide by this rule, and approximately 40 % of the NTSB fatal general aviation accident reports list continuation of flight into conditions for which the pilot was not qualified as a cause.

Some NTSB board members felt that ATC was negligent in not providing arriving aircraft with the latest wind shear information, which could alert the crew to possible difficulties in landing.

The NTSB considered the possibilities of a malfunction of the rudder power control unit ( PCU ) servo ( which might have caused the rudder to reverse ) and the effect that powerful rotor winds coming off of the nearby Rocky Mountains might have had, but there was not enough evidence to prove either hypothesis.

The NTSB reopened the UAL 585 case after the crash of another B-737, USAir Flight 427, which occurred three-and-a-half years later.

The NTSB cited LAX's handling of the runways which placed much of the responsibility for the runways on the local controllers which directly led to the loss of situational awareness by the local controller.