After the risk management, the situation is the following: – The aircraft still could enter into an inadvertent and unrecoverable spin. The possibility remains 3 – The risk for the flight crew is lower, because they have chance to save their lives (wearing parachutes, abandoning the aircraft is easier with the jettisonable canopy), therefore the only outcome of a spin accident would be the loss of the aircraft (the flights were planned in uninhabited areas – see point 11 – therefore the only endangered people are the crew on board). The severity will be D (loss of the aircraft, injuries during bailout – applying emergency procedures) – The overall risk decreases to 3D, which is yellow-coloured. It will be acceptable after the review of the operations Risk Management Hazard Cause Effect Probability Severity Risk Mitigation Emerg. Risk Proc. The aircraft The unknown Crash, and 3; Improbable, A; 3A Parachute If the spin is 3D enters flight fatal injuries but may occur Destruction wearing; Minimal to the flight of safe altitude to spin above crew equipment, 6000’ AGL; before 1500’ during stall fatalities Canopy jettison the aircraft test system must be installation abandoned. Table app. 2 – Example of use of risk mitigation table Severity of occurrence Probability of occurrence Catastrophic Hazardous Major Minor Negligible A B C D E 5 Frequent 5A 5B 5C 5D 5E 4 Probable 4A 4B 4C 4D 4E 3 Occasional 3A 3B 3C 3D 3E 2 Remote 2A 2B 2C 2D 2E 1 Improbable 1A 1B 1C 1D 1E Table app. 3 – Risk classification table Legend of risk (and colouring): Avoid Unacceptable; High Handling of risk demands decision;
After the risk management, the situation is the following: – The aircraft still could enter into an inadvertent and unrecoverable spin. The possibility remains 3 – The risk for the flight crew is lower, because they have chance to save their lives (wearing parachutes, abandoning the aircraft is easier with the jettisonable canopy), therefore the only outcome of a spin accident would be the loss of the aircraft (the flights were planned in uninhabited areas – see point 11 – therefore the only endangered people are the crew on board). The severity will be D (loss of the aircraft, injuries during bailout – applying emergency procedures) – The overall risk decreases to 3D, which is yellow-coloured. It will be acceptable after the review of the operations Risk Management Hazard Cause Effect Probability Severity Risk Mitigation Emerg. Proc. Risk The aircraft enters spin during stall test The unknown flight above Crash, and fatal injuries to the flight crew 3; Improbable, but may occur A; Destruction of equipment, fatalities 3A Parachute wearing; Minimal safe altitude to 6000’ AGL; Canopy jettison system installation If the spin is before 1500’ the aircraft must be abandoned. 3D Table app. 2 – Example of use of risk mitigation table Probability of occurrence Severity of occurrence Catastrophic Hazardous Major Minor Negligible A B C D E 5 Frequent 5A 5B 5C 5D 5E 4 Probable 4A 4B 4C 4D 4E 3 Occasional 3A 3B 3C 3D 3E 2 Remote 2A 2B 2C 2D 2E 1 Improbable 1A 1B 1C 1D 1E Table app. 3 – Risk classification table Legend of risk (and colouring): Avoid Unacceptable; High Handling of risk demands decision;
ABCD-FTP-01-00%20-%20Flight%20test%20programme%20-%2017.02.16%20-%20v1.docx