Besides identifying the unsafe acts related to the occurrence or safety and important factors that caused the occurrence, the Aviation Safety Council needs to find the risk factors that did not directly cause the occurrence but was associated with the organizational and overall safety flaws related to aviation safety and matters that were not directly connected to the occurrence but conducive to the improvement for aviation safety. In the conclusions of investigation reports the specific improvement suggestions are also described, so as to demand the relevant organizations make concrete and feasible improvement plans, to prevent the similar incidents from happening again.

        The ASC has investigated 103 aviation occurrences and proposed 739 improvement suggestions since its establishment in 1999, (statistics as of the end of August, 2014), and the acts done by the ASC that have promoted and improved our country's aviation safety are enumerated as follows:

1. In 1999, an explosion accident caused by a device made of bleach bottle filled with mixed gasoline liquid and a motorcycle battery in the overhead bin of the cabin on one Boeing MD90 aircraft occurred when it landed at Hualien Airport. Therefore, the Civil Aviation Authority established the "Regulations Governing the Safe Transport of Dangerous Goods by Air" due to this accident, clearly defining the transport and management of dangerous goods.
2. In 2000, at Chiang Kai-shek International Airport a Boeing 747-400 aircraft taxied onto closed runway due to part of taxiway was under construction and the aircraft took off in bad weather. The aircraft hit a construction machine, broke and exploded into flames. The Civil Aeronautics Administration (CAA) built the airport surface detection equipment (ASDE) at CKS International Airport because of this accident, to enhance the safety of airport ground movement.
3. In 2001, a DHC-8 aircraft encountered a vertical turbulence when landing at Kinmen Airport, the aircraft bounced after heavy landing with smoke in the cabin. Because of this accident, the CAA corrective actions include covering trenches and removing obstacles at Kinmen airport.
4. In 2002, a Boeing 747-200 aircraft at an altitude of 34,900 feet, 25 nautical miles north north-west of Magong City, Penghu, in-flight break up due to the failure of the bottom structure at the aft fuselage. The CAA and the US FAA issued an airworthiness directive, requiring our national airlines and all the airlines worldwide to inspect and repair the pressurized cabins of aging aircrafts and make sure that the results meet the standards.
5. In 2002, an ATR-72 aircraft crashed into the sea off the coast of Magong City, Penghu County, because of severe icing. In 2007, the ATR Aircraft Company and the French Civil Aviation Authority completed the R&D of ATR intelligent icing detection system, and more than 250 aircrafts have been installed with the system in the world.
6. In 2004, one A320 aircraft veered off the runway at Songshan Airport. Due to this accident, Airbus updated the design of Flight Warning Computer (FWC), to alert the pilot to retard the throttle when landing. In addition, the CAA installed an engineered material arresting system (EMAS) at the end of Runway 28 at Songshan Airport, to improve runway safety.
7. In 2005 and 2008, four air turbulence occurrence happened. The CAA issued the "Prevent Injuries Caused by Air Turbulence" notice, demanding airlines to promote : "Passengers should properly fasten seat belts when being seated policy" and carry out it effectively.
8. In 2008 and 2010, the ASC investigated two decompression occurrences on A330 aircrafts in flight. Because of these occurrences, Airbus improved the design of pressure sensor, to avoid the sensor from causing occurrences due to icing.
9. The ASC has investigated several aviation occurrences caused by the public aircrafts of National Airborne Service Corps, and found that most of the aircrafts are not equipped with flight recorder. The Corps has classified flight recorders as standard devices when procuring new aircrafts, to improve flight quality control.
10. The ASC has investigated several aviation occurrences happening to helicopters that hit ropeway cables. Due to the recommendation proposed by the Council, the CAA re-examine the "Standards for Establishing Aviation Obstacle Signs and Lights", in which there are regulations regarding aerial cables across rivers and valleys, and strengthening operation management mechanism, to ensure that all aviation obstacles in aviation environment are installed with aviation obstacle signs and lights.