Unit of competency Outline
Date retreived
22/07/2026 7:13 PM AWST
22/07/2026 7:13 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Inspect and report on the Obstacle Limitation Surfaces
Inspect and report on the Obstacle Limitation Surfaces
Unit of competency
National Code
AVI3B308B
AVI3B308B
State Code
S6765
S6765
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
31/05/2011
Field of Education
031507 - Air Traffic Control
Original Release Date
31/05/2011
Nominal Hours
30
Description
Notes
Elements and Performance Criteria
No information
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Inspections may need to occur:
by day or by night
in any weather conditions
Obstacle Limitation Surfaces inspections will occur:
at least one hour prior to the first commercial transport operation of the day, or
immediately after any significant phenomenon which could reasonably be expected to affect the serviceability of the aerodrome, or
otherwise as determined by the aerodrome operator
Relevant authorities for accessing and reporting purposes include:
aerodrome operator or delegated person
NOTAM Office (Airservices Australia)
Civil Aviation Safety Authority
Air Traffic Control (ATC)
Australian Defence Forces Command for military bases
aerodrome users
Aerodromes may include:
licensed aerodromes
unlicensed aerodromes
Aircraft Landing Areas (ALAs)
Obstacles may be:
existing objects or structures
proposed objects or structures
Obstacles may occur within the:
movement area
Obstacle Restriction Area (ORA)
Obstacle Limitation Surfaces (OLS)
Obstacle Limitations Surfaces which are related to the aerodrome reference point include:
inner horizontal surface
conical surface
outer horizontal surface
Other Obstacle Limitations Surfaces include:
transitional surface
inner transitional surface
approach and take-off surfaces
inner approach surface
baulked landing surfaces
Declared distances include:
take-off run available (TORA)
take-off distance available (TODA)
accelerate stop distance (ASDA)
landing distance available (LDA)
TODA gradient
Supplementary Take-off Distances (STODA) and associated gradients
Procedures for making the aerodrome surrounds safe may involve:
marking the unserviceable area or obstacle by day or night
partial closure of the aerodrome
aerodrome closure
contacting the aerodrome user
marking and lighting of obstacles
Serviceability markers and cones include:
signal circle markers
unserviceability cross markers
unserviceability cones
displaced threshold markers
work limit markers
glider markers
dumb bell markers
Suitable means of reporting include:
verbal communications
NOTAMs
other written means of communication as is appropriate (e.g. fax)
Method of Working Plan (MOWP)
Initiating repairs or hazard removal procedures includes:
notifying relevant aerodrome personnel
undertaking the repairs
negotiating with the owner of the obstacle to remove the hazard
notifying appropriate contractors
post-works serviceability inspection
Hazards in the work areas may include:
aircraft noise
aircraft movements
other vehicles in the vicinity of the aircraft
personnel in the vicinity of the aircraft
jet blast
fumes
dust
Dependent on the type of organisation concerned and the local terminology used, workplace procedures may include:
company procedures
enterprise procedures
organisational procedures
established procedures
standard operating procedures
Information/documents may include:
relevant sections of Civil Aviation Safety Regulations and Civil Aviation Orders pertaining to inspecting and reporting on the Obstacle Limitation Surfaces
aerodrome manuals
workplace operating procedures manuals
Manual of Standards - Aerodromes (previously Rules and Practices for Aerodromes [RPA])
En Route Supplement Australia (ERSA)
Departure and Approach Procedures (DAP)
manufacturers specifications for equipment used when inspecting and reporting on the Obstacle Limitation Surfaces
Civil Aviation Advisory Publications (CAAPs)
airline timetables
induction and training materials
Applicable regulations and legislation may include:
relevant Civil Aviation Act (1988) and Civil Aviation Regulations and Orders, including CAR 89w to 89Z inclusive
relevant requirements, standards and recommended practices of the International Civil Aviation Organization (ICAO) pertaining to airport reporting
Manual of Standards - Aerodromes (previously Rules and Practices for Aerodromes [RPA])
Airports Act
applicable state, territory and commonwealth regulations concerning:
occupational health and safety
workplace relations
workers compensation
ADG Code and Mines Regulation Act for fuel
environmental protection
equal opportunity
wildlife management (including culling)
Inspections may need to occur:
by day or by night
in any weather conditions
Obstacle Limitation Surfaces inspections will occur:
at least one hour prior to the first commercial transport operation of the day, or
immediately after any significant phenomenon which could reasonably be expected to affect the serviceability of the aerodrome, or
otherwise as determined by the aerodrome operator
Relevant authorities for accessing and reporting purposes include:
aerodrome operator or delegated person
NOTAM Office (Airservices Australia)
Civil Aviation Safety Authority
Air Traffic Control (ATC)
Australian Defence Forces Command for military bases
aerodrome users
Aerodromes may include:
licensed aerodromes
unlicensed aerodromes
Aircraft Landing Areas (ALAs)
Obstacles may be:
existing objects or structures
proposed objects or structures
Obstacles may occur within the:
movement area
Obstacle Restriction Area (ORA)
Obstacle Limitation Surfaces (OLS)
Obstacle Limitations Surfaces which are related to the aerodrome reference point include:
inner horizontal surface
conical surface
outer horizontal surface
Other Obstacle Limitations Surfaces include:
transitional surface
inner transitional surface
approach and take-off surfaces
inner approach surface
baulked landing surfaces
Declared distances include:
take-off run available (TORA)
take-off distance available (TODA)
accelerate stop distance (ASDA)
landing distance available (LDA)
TODA gradient
Supplementary Take-off Distances (STODA) and associated gradients
Procedures for making the aerodrome surrounds safe may involve:
marking the unserviceable area or obstacle by day or night
partial closure of the aerodrome
aerodrome closure
contacting the aerodrome user
marking and lighting of obstacles
Serviceability markers and cones include:
signal circle markers
unserviceability cross markers
unserviceability cones
displaced threshold markers
work limit markers
glider markers
dumb bell markers
Suitable means of reporting include:
verbal communications
NOTAMs
other written means of communication as is appropriate (e.g. fax)
Method of Working Plan (MOWP)
Initiating repairs or hazard removal procedures includes:
notifying relevant aerodrome personnel
undertaking the repairs
negotiating with the owner of the obstacle to remove the hazard
notifying appropriate contractors
post-works serviceability inspection
Hazards in the work areas may include:
aircraft noise
aircraft movements
other vehicles in the vicinity of the aircraft
personnel in the vicinity of the aircraft
jet blast
fumes
dust
Dependent on the type of organisation concerned and the local terminology used, workplace procedures may include:
company procedures
enterprise procedures
organisational procedures
established procedures
standard operating procedures
Information/documents may include:
relevant sections of Civil Aviation Safety Regulations and Civil Aviation Orders pertaining to inspecting and reporting on the Obstacle Limitation Surfaces
aerodrome manuals
workplace operating procedures manuals
Manual of Standards - Aerodromes (previously Rules and Practices for Aerodromes [RPA])
En Route Supplement Australia (ERSA)
Departure and Approach Procedures (DAP)
manufacturers specifications for equipment used when inspecting and reporting on the Obstacle Limitation Surfaces
Civil Aviation Advisory Publications (CAAPs)
airline timetables
induction and training materials
Applicable regulations and legislation may include:
relevant Civil Aviation Act (1988) and Civil Aviation Regulations and Orders, including CAR 89w to 89Z inclusive
relevant requirements, standards and recommended practices of the International Civil Aviation Organization (ICAO) pertaining to airport reporting
Manual of Standards - Aerodromes (previously Rules and Practices for Aerodromes [RPA])
Airports Act
applicable state, territory and commonwealth regulations concerning:
occupational health and safety
workplace relations
workers compensation
ADG Code and Mines Regulation Act for fuel
environmental protection
equal opportunity
wildlife management (including culling)
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria of this unit and include demonstration of applying:
the underpinning knowledge and skills
relevant legislation and workplace procedures
other relevant aspects of the range statement
Context of, and specific resources for assessment
Performance is demonstrated consistently over a period of time and in a suitable range of contexts
Processes and techniques must be equitable and fulfil regulatory requirements. This includes the assessment of language and literacy proficiency to the required workplace standard
Resources for assessment include:
a range of relevant exercises, case studies and other simulated practical and knowledge assessment, and/or
access to an appropriate range of relevant operational situations in the workplace
In both real and simulated environments, access is required to:
relevant and appropriate materials and/or equipment, and/or
applicable documentation including workplace procedures, regulations, codes of practice and operation manuals
Method of assessment
Assessment of this unit must be undertaken by a registered training organisation
As a minimum, assessment of knowledge must be conducted through appropriate written/oral tests
Practical assessment must occur:
through appropriately simulated activities at the registered training organisation, and/or
in an appropriate range of situations in the workplace
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria of this unit and include demonstration of applying:
the underpinning knowledge and skills
relevant legislation and workplace procedures
other relevant aspects of the range statement
Context of, and specific resources for assessment
Performance is demonstrated consistently over a period of time and in a suitable range of contexts
Processes and techniques must be equitable and fulfil regulatory requirements. This includes the assessment of language and literacy proficiency to the required workplace standard
Resources for assessment include:
a range of relevant exercises, case studies and other simulated practical and knowledge assessment, and/or
access to an appropriate range of relevant operational situations in the workplace
In both real and simulated environments, access is required to:
relevant and appropriate materials and/or equipment, and/or
applicable documentation including workplace procedures, regulations, codes of practice and operation manuals
Method of assessment
Assessment of this unit must be undertaken by a registered training organisation
As a minimum, assessment of knowledge must be conducted through appropriate written/oral tests
Practical assessment must occur:
through appropriately simulated activities at the registered training organisation, and/or
in an appropriate range of situations in the workplace
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| W1941 | TDAB303A | Inspect and report on the "obstacle limitation surfaces" | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| WB744 | AVIB3003B | Inspect and report on the Obstacle Limitation Surfaces | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| 4648 | 51878 | Diploma of Airport Management | Accredited course |
| 4650 | 52392 | Diploma of Airport Management | Accredited course |