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OSA kickoff 4D-TRAD

OSA kickoff 4D-TRAD. SG meeting at MUAC 8-12June 2009. OSA Process: Details SPR/Annex A. Operational Service Description. OHA. ASOR. Environmental Conditions. System State. EMM. OE SC4. Pe. BC. SO. OE SC2. Pe. BC. OH. LWCE. OE SC3. BC. Pe. OE SC1. IMM. Pe. Fault Tree.

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OSA kickoff 4D-TRAD

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  1. OSA kickoff 4D-TRAD SG meeting at MUAC 8-12June 2009

  2. OSA Process:Details SPR/Annex A Operational Service Description OHA ASOR Environmental Conditions System State EMM OE SC4 Pe BC SO OE SC2 Pe BC OH LWCE OE SC3 BC Pe OE SC1 IMM Pe Fault Tree Event Tree Likelihood of effect

  3. step 3 step 2 step 1 step 4 Determine Pe Allocate SC to effects Allocate SO Identify Operational hazards Pe Safety Target Safety Objective S Pe4 Effect 1 SC4 ST4 S F Pe2 Effect 2 ST2 SC2 Most stringent SO Effect 3 Pe3 ST3 SC3 S F Effect 4 Pe1 ST1 SC1 F F F F Hazard SCS + RCS Effects The effect, associated with most stringent SO = WCE of SMS Process OHA Process

  4. OHA step 5 step 6 step 7 step 4 Develop Fault Trees Derive Safety Requirements Allocate SO to BCs Allocate SO Safety Objective (BC1, SOaportion1) BC1 (BC3, SOaportion3) BC3 (BC2, SOaportion2) BC2 (BC4, SOaportion1) BC4 Hazard ATM System Elements Causes SR list ASOR Process

  5. step 3 step 1 step 2 step 4 Identify Operational hazards Determine LWCE Determine SC of WCE LWCE S Effect 1 BC1 S F BC3 Effect 2 SC of WCE BC2 Effect 3 S BC4 F Hazard Effect 4 ATM System F F F F Elements Risk matrix SCS Causes Effects LWCE: Probability that the hazard leads to a WCE FAA-ATO SMS Process

  6. 78/214 OSA Approach RISK ST Combined LWCE & SC LWCEs SOs LWCE SO Pr SR Estimated Probabilities SRs SR SR Pr Pr Definition Verification

  7. OHv OH1 4D-TRAD OSA 4DTRAD service Planning 4DTRAD OSA application OH1 OH1 OH1 CPDLC OSA ADS-C OSA GND-GND OSA OHy OHx OH21 Strategic Interventions

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