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DDAAFS overview &
introduction to aviation accident investigation
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Squadron Leader Ben Abrahams
Safety Investigation – Engineering 2
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Lieutenant Commander Denes Illyes
- Safety Investigation – Operations 2
- Assessment Criteria
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• 5.4 Introduction to AAI and DDAAFS
- – Outline the role of the Directorate of Defence Aviation Air
- Force Safety in aircraft accident investigation.
- – Refer to relevant ADF policies and sources of information specific to aircraft accidents and incidents.
- – Describe the role of the Aircraft Accident Investigation
- Team (AAIT).
- – Outline ADF policies that relate to the initial response to and investigation of aircraft accidents and incidents.
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– Apply relevant ADF policies and procedures to the initial response to and investigation of aircraft accidents and incidents.
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DDAAFS overview
DDAAFS Purpose
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Enabling Defence aviation capability through effective and integrated safety programs.
DDAAFS Mission
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To provide independent specialist advice to those
who influence Air Force and Aviation safety in the promotion and maintenance of safety standards that support capability.
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To improve Air Force and aviation safety to enhance capability through positively influencing safety behaviour by fostering and promoting a generative safety culture.
Location
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Defence Establishment Fairbairn, ACT
- Building F4 / Level 1
- Organisational Structure
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D!RCCTORATC Of
Defence Aviation and Air force Safety
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- Roles & Responsibilities
- (Aviation Safety)
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• Principal representative/adviser to Defence Aviation Authority (Chief of Air
Force) on Defence aviation safety management
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• Aviation safety policy formulation
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• Monitor effectiveness of the Defence Aviation Safety Management System
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• Advice and tools to services on implementation and management of their
ASMS
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• Aviation safety education and training
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• Develop strategies and programs to enhance Defence aviation safety
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• Investigate all Defence aviation accidents.
- Roles & Responsibilities
- (Air Force Safety)
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• Assist the CAF with safety governance through due diligence (WHS Act)
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• Support WHS regulator (Comcare) interventions
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– Provide advice to commanders
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• Develop and improve Air Force WHS Management System
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– RAAFSafe including policy, training, assurance, risk management and WHS
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• Prescribe WHS standards and provide advice to CAF and safety network as required
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• Air Force WHS policy development and maintenance.
Products/capabilities
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• AAP 6734.001 ‐ Defence Aviation Safety Manual (DASM)
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• AAP 6730.002 ‐ Aviation Accident WHS Manual (AAWHSM)
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• AAP 6730.001 ‐ Air Force Safety Manual (AFSM)
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• Defence Aviation Hazard Reporting & Tracking System (DAHRTS)
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– safety culture (aviation safety & WHS).
Products/capabilities
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– active promotion of safety throughout the Air Force and ADF aviation environments
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• Applied Human Factors Specialist Support
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– implementation and continuance of Human Factors training and
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education for Aircrew/Maintenance Human Factors, and culture/leadership programs.
Products/capabilities
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• Aviation Safety Education and Training
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– responsible for the development and management of aviation safety‐related training
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• Safety Data Analysis and Exchange
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– management of the DAHRTS database, ASOR
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monitoring and statistical analysis.
Products/capabilities
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• provide independent and dedicated investigation capability for aviation system accidents
– all Australian Defence aviation system accidents
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– assisting / participating in investigations of foreign military accidents involving ADF personnel (subject to approval)
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– assisting investigation of foreign military accidents in Australian territory
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– major civil accident ‐ mutual national transport safety investigation capability (ATSB‐DDAAFS MoU).
Want further information?
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– Access to DAHRTS and AAPs
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– Links to other guidance material/tools
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Introduction to aviation
accident investigation
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Defence
- accident history
- Defence Aviation Accidents (fatalities & hull losses) 1980-2015
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Operator error focus Organisational issues focus
..... - - - - - - - - - - - - - - - · 1 · - - - - - - - - - - - - - - - - - - - - -�
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Pl.Hornet,
- PllalUS Ponef,
- 7 PC-9,8707,
- Nomad
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6 OPERATIONAL REGULATIONS
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N.... .... .....
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83 Deaths • = Number k . led
- 89 Aircraft il
- Safety information feedback loops: outer ; inner
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ORGANISATION organisational deficiencies: latent conditions
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MANAGEMENT DECISIONS AND
- ORGANISATIONAL PROCESSES
- WORKPLACE
- local conditions
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ERROR- PRODUCING CONDITIONS
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VIOLATION- PRODUCING CONDITIONS
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TECHNICAL FAILURES
DEFENCES BARRIERS
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ACCIDENTS
& SERIOUS INCIDENTS
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The Reason Model of Systems Safety
– more than just Swiss Cheese
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Limited coping resources can get nibbled away
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Accumulat ion of minor event s. N ot so much
- holes as st eady
- at t r it ion
- (Reason, 2000)
- ADF Investigation requirement
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• Aviation safety occurrence
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– Any occurrence which adversely affects, or could adversely affect, the safety or airworthiness of an Aviation System, or safety of third parties.
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• Four classification levels:
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– Accident (DDAAFS to investigate)
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– Serious Incident (investigator must be independent of the incident unit, e.g. DDAAFS, WASO/FASO/RASO)
– Incident (incident unit to investigate)
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– Event (not investigated).
ADF policies relating to initial response to and investigation of aviation accident and incidents
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• DI(G) OPS 02‐2 – Defence Aviation Safety Program
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– Authority for AAP 6734.001 ‐ Defence Aviation Safety Manual (DASM)
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• AAP 6734.001 – Defence Aviation Safety Manual
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– Outlines Defence ASMS (12 elements)
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– AL3 (Jan 15) introduced new Section 4 – key content from ADFP 731 – Medical
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Guide to Aircraft Accident/Incident Investigation
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– Two key ASMS elements for initial response:
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• Element 9 Investigation
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• Element 10 Emergency response.
ADF policies and sources of information
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• AAP 6730.002 – Aviation Accident Work Health & Safety Manual:
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– Key source of information to assist with hazard identification and associated risk management on an accident site
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• Other DDAAFS publications and guide books:
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– Hazards at aircraft accident sites – Guidance for police and emergency personnel (Edition 6 January 2014) – ATSB/DDAAFS
– Aviation Accident Checklist Edition 6 January 2014) – ATSB/DDAAFS
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– ADF Aviation Safety Occurrence Investigation – Quick Reference Guide AL 4.
ADF policies and sources of information
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• PM 184 – Medical Report on an Aircraft Incident or Accident (Web Forms)
– Aircrew/passenger medical report – 72 hour history, injuries/causes, survivability aspects
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– Medical and rescue services assessment
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• PM 185 – Medical Officer’s Incident/Accident
Check List (hard copy only)
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– Provides further guidance on completing PM184 forms.
DDAAFS role in accident investigation
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• Not part of initial response / rescue
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• Only ADF agency for aviation accident investigation
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• DDAAFS will form an Aviation Accident Investigation Team
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(AAIT) , which will deploy as soon as possible
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• Take‐over of site control from Incident Site Commander once emergency services actions complete / survivors rescued / fatalities removed
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• Not responsible for recovery of aircraft or site restitution
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• Produce Aviation Accident Investigation Report.
DDAAFS role in accident investigation
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• DDAAFS is able to support two concurrent accident investigations:
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– trained Aviation Safety Investigators (ASI) across aircrew, engineering and maintenance
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– each team will typically have five DDAAFS ASIs
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– Each team supplemented by other agencies as required
(next slide)
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– heightened readiness & short notice to move.
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(02) 6144 9199
Investigation Team composition
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1. Officer in Charge (management oversight – conduit btwn AA & AAIT)
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2. Investigator in Charge (Project manager / senior investigator)
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3. Lead operations investigator (aircrew, planning, execution, weather, ATC)
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4. Lead technical investigator (wreckage examination, maintenance aspects)
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5. Operations investigator
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6. Technical investigator
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7. Crash Data Recorder (CDR) specialist (investigative support – crash kits, PPE, CDR recovery)
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8. Human Factors specialist (support to Ops/Tech investigators during interviews)
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9. External support – platform specialist (Ops/Tech and OEMs), SAVMO, evidence documentation
- (ADFIS), accident engineering forensics (DST Group), Site Safety (ENVHO, EODF).
- Investigation support and liaison
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- Safety Investigation equipment
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• AAIT will use a variety of specialised equipment and Personal Protective Equipment:
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– Individual Go‐Bags (Macpacs)
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– Crash kits (x2), GPS site mapping kit, photographic kit, PPE kits, sampling kits, hand tools, GoPro
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– Specific training and regular familiarity training to maintain competence in their use.
- Crash Data Recorder download & analysis
- Crash Data Recorder download & analysis
- examples
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• Investigation
- Role of the AAIT
- – Managed as a ‘project’
- – Responsible for safety of all personnel once site handover has occurred
- – Reports directly to Appointing Authority (accident Service
- Chief)
- – Recommend safety action (if required) at any time
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• Key phases:
- – Notification
- – Pre‐deployment
- – Field phase (evidence collection)
- – Analysis and Report Writing
- – BOI/COI (expert witness).
- Case Study – PC9/A Accident
- A23‐039, 18 May 11
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Initial phase of investigation
Pilatus PC9/A information
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• Two seat advanced trainer
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– MB Mk 11 ejection seats
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• Operated by CFS, 2FTS,
- 4SQN, ARDU
- Accident background
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• Student instructor flying
(Rear Seat)
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• Intercepted outbound leg
(220 radial), climbing
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• Approx 3600 ft, 3.0nm from
RWY 04 threshold
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• Loss of power experienced
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• QFI assumed control, turned to nearest RWY (04)
Accident Background
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Impact Site
- • Student commenced checklist
- items
- • QFI established aircraft in glide
- • QFI declared MAYDAY to ESL
- approach
- • QFI commenced ‘Mechanical
- Failure’ checklist
- • When apparent A23‐039 would not make runway, QFI directed ejection
- • Student initiated command ejection
- Site Investigation
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• A23‐039 impacted approx 0.5 nm SW of RWY 04 threshold
- – Came to rest on RAAF ESL boundary fence
- – Initial impact approx 15 – 20m prior to resting point
- • Aircraft destroyed in impact
- – Fuselage/wing effectively separated
- – Nose significantly damaged
- – Front cockpit disrupted
- – Fuel tank rupture and fuel spill
- – Propeller destroyed
- Site Investigation
- Site Investigation
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• 19 May 11
- – AAIT personnel on site
- – FDR/CVR recovered
- • 20 May 11
- – Engine recovered and sent to Pratt & Whitney
- Canada Australasia (Brisbane) for teardown
- – Fuel system, cockpit components recovered
- • 21‐22 May 11 (weekend)
- – Site survey, additional components recovered
- – Documentation review
- • 23 May 11
- – Wreck moved to secure hangar, site handover
- – Engine examination commenced (Brisbane)
- Site Investigation
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• Aircraft impacted wings‐
- level, slight nose‐down
- • Wholly intact prior to impact
- – Excepting ejection debris
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• Control surface integrity assessed as serviceable prior to impact
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• Fuel present in aircraft
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• Oil present in engine
- • Hydraulic fluid present in hyd system lines
- Investigation process
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3. Pre‐deployment – planning/preparation
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4. Deployment – field phase
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5. Redeployment – analysis, report writing
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– Manages ASMS and WHSMS policy (outlined in the
DASM and AFSM)
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– Investigation is only one of many roles
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– DDAAFS is the lead ADF organisation for all accident investigations (+ other occurrences if necessary), but is supported by other agencies
Summary
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• Intro to accident investigation:
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– 4 levels of ASOR classification – event, incident, serious incident, accident
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– Safety investigations only ‐ Why it happened prevent recurrence +
improve safety
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• No blame or liability apportionment
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– Investigation report (with safety recommendations)
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– BOI / CDF COI – expert witness (to explain circumstances of the accident)
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– Initial response is by bases/units, not DDAAFS
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– Key policy document outlining investigation and emergency response is the DASM
• However there is a number of supporting documents
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2005 Sea King Nias
- 2006 Black Hawk HMAS Kanimbla
- 2012 Chinook MEAO
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