This discussion requires each student to locate a turbine engine-related accident investigation. For the accident analysis, review TransAsia Airways Flight 235 and aircraft specs. This will facilitate an understanding and application of turbine engine design, system components, propeller system, and engine operation related to an aircraft accident. You can select an actual accident, from any country, and expected to apply investigative techniques for this case study. As with many investigations, not all the information will be available to the investigator. Therefore, an investigator must apply his/her knowledge and consider other potential contributing factors, which is sometimes called taking a 360-degree view of the accident factors.
In this discussion you will be exposed to a variety of engine-related accidents, thus increasing everyone’s knowledge. Remember to be professional when asking questions in the discussion post with your peers. Some questions may not have an answer based upon the content of the accident investigation or aircraft/engine performance specifications available from open sources.
Examine the discussion resources below before formulating responses to the questions in the discussion.
Review: TransAsia Airways Flight 235
Accident
Executive Summary/Wayback Machine (Links to an external site.) https://web.archive.org/web/20181112021331/https://www.asc.gov.tw/upload/acd_att/ASC-AOR-16-06-001%20EN.pdf
TransAsia Airways Flight GE235 accident Final Report/Wayback Machine (Links to an external site.) https://web.archive.org/web/20181119070817/https://www.asc.gov.tw/upload/cont_att/9b051632-ebf6-427f-b00a-ed58a62541c0.pdf
Aircraft
Pratt & Whitney: pw100-pw150/PW-127 Engine Specs (Links to an external site.) https://www.pwc.ca/en/products-and-services/products/regional-aviation-engines/pw100-150
ATR: ATR 72-600 Aircraft (Links to an external site.) https://www.atr-aircraft.com/our-aircraft/atr-72-600/
Resources
FAA Aviation Safety Information Analysis and Sharing (ASIAS) (Links to an external site.) https://www.asias.faa.gov/apex/f?p=100:1
National Transportation Safety Board, Aviation Accident database & Synopes (Links to an external site.) https://www.ntsb.gov/_layouts/ntsb.aviation/index.aspx
Canada Air Transportation Safety Investigations and Reports (Links to an external site.) https://www.tsb.gc.ca/eng/rapports-reports/aviation/index.html
Enter Engine in the Filter Items for a list of investigations attributed to engine issues.
Australian Transport Safety Bureau (Links to an external site.) https://www.atsb.gov.au/
Australian Transport Safety Bureau, Safety Investigation Reports (Links to an external site.) https://www.atsb.gov.au/publications/safety-investigation-reports/?mode=Aviation&q=engine
Enter Engine into Quick Find for a list of investigations attributed to engine issues.
German Federal Bureau of Aircraft Accident Investigation (Links to an external site.) https://www.bfu-web.de/EN/Home/homepage_node.html
Enter Engine in the search field.
Spain, Civil Aviation Accident and Incident Investigation Commission (CIAIAC) (Links to an external site.) https://www.mitma.es/organos-colegiados/ciaiac
Select the link titled Investigation.
United Kingdom, Air Accident Investigation Branch (Links to an external site.) https://www.gov.uk/government/organisations/air-accidents-investigation-branch
AAIB Reports (Links to an external site.) https://www.gov.uk/aaib-reports
Type in Engine in the search for a list of engine-related investigations accident.
Here is a list of other Aviation Accident and Incident Investigative Commissions.
https://www.mitma.es/organos-colegiados/ciaiac/otras-comisiones/comisiones-de-investigacion-de-accidentes-de-otros-paises
Discussion Questions
Respond to each of the following questions in your discussion post:
Explain the engine take-off performance parameters/limits during the accident sequence compared to the engine performance specifications.
What engine systems were involved in this accident?
Was this the first time the engine system, that was identified through the investigation, was identified as an issue? (If this is not the first occurrence, indicate what information was available before the accident.)
What field level engine investigation procedures appear to have been used to evaluate the engine? (Oftentimes the accident report does not state how the engine investigation was conducted in the field, so this question is how you believe the investigators may have approached the investigation.)
How may have the investigation team evaluated the engine after recovery of the wreckage? (Oftentimes the accident report does not state how the engine investigation was conducted after engine recovery, so this question is how you believe the investigators may have approached the investigation.)
What were the likely contributing factors to the aircraft accident (e.g., processes, procedures, maintenance, environmental, operational, etc.)? Explain why you believe these factors contributed.
What field conditions did the investigation team face at this accident site?
What possible factors contributed to the aircraft accident?
What, if anything, would you do differently in the investigation?
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