Motivation/Introduction

Question 1

What are the costs of a total loss for an airline?

Answer 1

100 Mio€
biggest cost points:
- increased insurance
- reputation losses

Question 2

What is important when comparing safety of different modes of transport?

Answer 2

ranking changes, depending on which parameter the normalization is based on
- accidents/hour accidents/kilometer accidents/journey

Question 3

How did the accident rate develop alongside traffic growth?

Answer 3

• stable absolut number despite a massive increase of flights -> steady decrease over time

Question 4

How to quantify risk?

Answer 4

𝒓𝒊𝒔𝒌 = (𝒑𝒓𝒐𝒃𝒂𝒃𝒊𝒍𝒊𝒕𝒚 𝒐𝒇 𝒐𝒄𝒄𝒖𝒓𝒓𝒆𝒏𝒄𝒆) 𝒙 (𝒔𝒆𝒗𝒆𝒓𝒊𝒕𝒚|𝒆𝒙𝒕𝒆𝒏𝒕 𝒐𝒇 𝒍𝒐𝒔𝒔𝒆𝒔)
Risk is often measured as the expected value of an undesirable outcome.

Question 5

What parts of a flight are especially risky?

Answer 5

T/O, initial climb (14%)

Final, Landing (49%)

Question 6

Which authorities are involved?

Answer 6

Advisories: ICAO, ITU, ECAC
Rulemaking: FAA, EASA, BMVI, LBA
Other: public(BFU, DWD, BAF, FAI)
private(IATA , DFS)

Question 7

How are rules implemented in German aviation?

Answer 7

ICAO(standards, not legally binding)-> EASA

• EASA EU-Law
• LBA

Question 8

What is the difference between safety and security?

Answer 8

• Security (Luftsicherheit)
  Protecting a system against hazards, which act on the system from outside the system. The associated hazards are unlawful actions, which might be of intentional or accidental nature.
• Safety (Luftverkehrssicherheit)
  Protecting a system against operational hazards, which are caused by the system itself.

Question 9

How much fuel would you have to take on board, given travel time?

Answer 9

• Alternate fuel B-C( ausweichflughafen)
• Contingency Fuel – 5 % Streckenreserve A-B
• Holding Fuel – 30 Min
• Captain Discretion Fuel