1. Seneca College
ACA121NAA
Professor Carl Lapp
Group Members: S.Hamed Jabbari- Kevin Romero- Kevin Chong- Siam k.
Aviation Safety Issues and
how IT can resolve them!

2. Introduction
Low Level Windshear Alert System or LLWAS
Ice on different parts of an aircraft frame
Weather Radar
Safety and Risk Assessment with IT
Conclusion
References

3. Aviation, in all of its forms, has transformed the world in
countless ways and continues to evolve; improving
capability, safety, security, and efficiency through the
continued advancement of technology. With the use of
Information Technology there are current problems that can
be solved. As technology is evolving at a rapid rate
improving many industries. It seems fitting that aviation
follows by adding in technological advancements in daily
business where improvements can be made to be more
efficient.

4. Wind Shear is defined as a sudden change of wind velocity and/or
direction in either the vertical or horizontal planes.
Downdraft of air such as Thunderstorm or Rain creates Microburst

5. Components of Low Level Windshear Alert System:
1- LLWAS Anemometers 2- One or two central data units (CDU) 3– LAN
4-Workstations and Displays
The commonly used workstation types are Weather View, Forecaster, Observer,
and Remote Control and Maintenance workstations.

7. When ice is formed on the wings it increases drag and reduces
lift when taking off
Ice on the front of the wing stops the air from flowing
smoothly
Ice can also form on the engine this also increases drag and
stops the air from flowing smoothly

9. Anti-icing: this is used before the aircraft enters a frozen
condition in most cases carburetor heat or deicing fluids are
used
Deicing: this is used after the plane has caught a large
amount on its surface. For this it is common to use deicing
equipment.
For propellers or engine what is used is deicing fluids which
are applied by rings on the propeller hub or in other cases
with electrically heated elements

12. Obsolescence Issues
-Aircraft electronics seem to “age” more quickly than the airframe
-Changing technology may improve equipment capabilities
Capability Issues
-New technology may extend the capability of the aircraft
-New roles and missions for the aircraft tend to increase the crew workload
Resulting in…
– The need to make systems more capable but more intuitive and easier
to operate

13. Advanced Technologies:
– Pulse Compression
Increased detection range & resolution for improved avoidance
–Higher system sensitivity
Increased weather/windshear/turbulence detection performance
-Direct Drive Antenna Design
Improved reliability, reduced maintenance costs and improved
availability
–Increased Safety with Turbulence Avoidance
Detects hazards along flight path
Automated weather detection reduces pilot workload

14. • Increased air traffic so safety gradually increased as well
• With intro of IT, digital technology, SMS added new
procedures: risk management, emergency management,
and incident management
• Improves accuracy in a timely manner
• Provides comprehensive data to maximize effenciy

15. • A. System Frame Work
• A B/S structure is more convenient for data retrieval,
statistical analysis and display mode, and more suitable for air
port operations
• B. System Funtion
• Has four sub systems : Company basic Data subsystem, Safety
Management Subsystem, Risk Management Subsystem, and
safety Monitoring and Alerts

16. • C. Company Basic Data Subsystem
• Staff safety archive
• Equipment facilities management
• D. Safety Management System
• Easy access
• Safety supervision Inspection
• Emergency management

17. System Design Cond’t
• E. Risk Management subsystem
• Hazard Management
• Jobs Basic Safety Risk Assessment
• Risk Analysis
• F. Safety Monitoring Alters
• Safety Trend Analysis of Info
• Job Content Tips and Progress Monitoring
• Safety Alerts

18. • Systems include:
• Windows 2000
• Windows XP
• Windows NT
• Internet Explorer 6.0 browser

19. In conclusion IT and general technology reduces issues that
are present in the aviation industry. From uses to prevent
accidents, to assess risk and safety management. With
general advancement in technology which has helped the
industry by development in de-icing aircrafts and weather
radar. It can be forecasted that other aspects of IT will be
integrated to resolve problems.

20. oAircraft Icing. (n.d.). Retrieved November 16, 2015, from
http://flighttraining.aopa.org/pdf/SA11_Aircraft_Icing.pdf
oAuxier, E. (2015, April 23). Top 5 Modern Improvements in Aviation Safety. Retrieved
from http://airwaysnews.com: http://airwaysnews.com/blog/2015/04/23/top-5-
modern-improvements-in-aviation-safety/
oAviationKnowledge. (n.d.). Retrieved November 16, 2015, from
http://aviationknowledge.wikidot.com/aviation:interpretation-of-weather-radar
oSKYbrary. (2014, March 6). Low Level Wind Shear Alert System (LLWAS). Retrieved from
skybrary.aero:http://www.skybrary.aero/index.php/Low_Level_Wind_Shear_Alert_Sys
tem_%28LLWAS%29
oVaisala. (2015). Vaisala AviMet® Windshear Alert System (LLWAS). Retrieved from
vaisala.com:http://www.vaisala.com/en/airports/largeaircarrier/windshear/Pages/d
efault.aspx
oFlight Operations Briefing notes. (n.d.). Retrieved November 16, 2015, from
http://www.airbus.com/fileadmin/media_gallery/files/safety_library_items/AirbusSa
fetyLib_-FLT_OPS-ADV_WX-SEQ07.pdf
oMing Cheng1, f., & Wenjuan Liang1, l. (2010). Study on Civil Airport Safety
Management System Based on Risk Management. Proceedings of the International
Symposium On Networking & Network Security, 105-107.