ASTM F3450-20

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F3450 −20
Standard Guide for
Flight Hazard and Surveillance Systems Personnel
Certification
This standard is issued under the fixed designation F3450; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope AC43.13-2B Acceptable Methods, Techniques, and Prac-
tices – Aircraft Alterations
1.1 The purpose of this guide is to address the basic
FAA FederalAviation Regulations forAviation Maintenance
fundamental subject knowledge activities and functions for
Technicians
avionics professionals to be titled Flight Hazard and Surveil-
FAA-H-8083-30 Aviation Maintenance Technician Hand-
lance Systems (FHSS) Technicians.
book – General
1.2 This guide does not cover weather detection and avoid-
FAA-H-8083-30 Aviation Maintenance Technician Hand-
ance systems. These systems will be addressed in a future
book – Airframe Volume 1
Aircraft Electronics Technician (AET) endorsement standard.
FAA-H-8083-30 Aviation Maintenance Technician Hand-
1.3 This guide is the basis for the FHSS certification, an
book – Airframe Volume 2
endorsement to the AET certification. Candidates must be a
certifiedAETtotakethecertificationexamassociatedwiththis
3. Terminology
guide.
3.1 See Terminology F3060.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2 See Table 1 for knowledge level definitions relating to
responsibility of the user of this standard to establish appro-
the education requirements for FHSS professionals.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Significance and Use
1.5 This international standard was developed in accor-
4.1 The guide is intended to be used to assess competencies
dance with internationally recognized principles on standard-
of qualified individuals who wish to become certified as an
ization established in the Decision on Principles for the
FHSS technician through a certification program.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.2 The guide is intended to be used in concert with a
Barriers to Trade (TBT) Committee.
certification provider’s structure and materials for
management, exam delivery, and candidate preparation.
2. Referenced Documents
2.1 ASTM Standards:
5. Test Knowledge Requirements
F3060 Terminology for Aircraft
F3245 Guide for Aircraft Electronics Technician Personnel
5.1 Thefollowingsubjectknowledgeareasshallbeassessed
Certification
by levels (referenced in Table 1) of competency in the exam
2.2 FAA Documents:
items.
AC43.13-1B Acceptable Methods, Techniques, and Prac-
5.2 Risk Management—LEVEL1AET understands and can
tices – Aircraft Inspection and Repair
apply the following:
This guide is under the jurisdiction of ASTM Committee F46 on Aerospace
5.2.1 Safety—See Guide F3245, Section 6, Core Competen-
Personnel and is the direct responsibility of Subcommittee F46.02 on Avionics and
cies – Common Maintenance Practices, Fundamentals of
Information Technology Endorsements.
On-Equipment Maintenance, and Aircraft Fundamentals.
Current edition approved June 1, 2020. Published July 2020. DOI: 10.1520/
F3450-20.
5.2.2 Operational Considerations:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2.2.1 Radiofrequency(RF)transmissionpowerlevelsand
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
safety of aircraft maintenance personnel.
the ASTM website.
5.2.2.2 Regulatory requirements and limitations related to
Available from Federal Aviation Administration (FAA), 800 Independence
Ave., SW, Washington, DC 20591, http://www.faa.gov. ground testing of aircraft systems.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F3450−20
TABLE 1 Knowledge Level Definitions
Definition: Knowledge Levels
LEVEL 1 A familiarization with the principal elements of the subject.
Objectives:
• The applicant should be familiar with the basic elements of the subject.
• The applicant should be able to give a simple description of the whole subject, using common words and examples.
• The applicant should be able to locate methods, procedures, instructions, and reference material.
• The applicant should be able to use typical terms.
LEVEL 2 A general knowledge of the theoretical and practical aspects of the subject and an ability to apply that knowledge in a practical manner.
Objectives:
• The applicant should be able to understand the theoretical fundamentals of the subject.
• The applicant should be able to find and interpret maintenance data and information.
• The applicant should be able to give a general description of the subject using, as appropriate, typical examples.
• The applicant should be able to use mathematical formulae in conjunction with physical laws describing the subject.
• The applicant should be able to read and understand sketches, drawings, and schematics describing the subject.
• The applicant should be able to apply their knowledge in a practical manner using detailed procedures.
LEVEL 3 A detailed knowledge of the theoretical and practical aspects of the subject. To know, understand, and apply facts, principles, theories, and
concepts. To know, understand, and apply facts, principles, theories, and concepts. A capacity to combine and apply the separate elements
of knowledge in a logical and comprehensive manner.
Objectives:
• The applicant should know the theory of the subject and interrelationships with other subjects.
• The applicant should be able to give a detailed description of the subject using theoretical fundamentals and specific examples.
• The applicant should understand and be able to use mathematical formulae related to the subject.
• The applicant should be able to read, understand, and prepare sketches, simple drawings, and schematics describing the subject.
• The applicant should be able to apply their knowledge in a practical manner using manufacturer’s instructions or other acceptable data.
• The applicant should be able to interpret results from various sources and measurements and apply corrective action where appropriate.
• The applicant should be able to perform all skill operations to a return-to-service standard using appropriate data, tools, and equipment.
• The applicant should be able to perform inspections in accordance with acceptable or approved data.
5.3 Transponder and Automatic Dependent Surveillance- 5.3.2.4 Altitude Source.
Broadcast (ADS-B) Systems:
5.3.3 Integration—LEVEL 2 AET understands and can
5.3.1 General—LEVEL1AET understands and can explain
explain the following:
the following:
5.3.3.1 The transponder system interfaces to the aircraft’s
5.3.1.1 Purpose—AllowsAir Traffic Control (ATC) person-
altitude sensing system for aircraft altitude (Mode C), which
nel to monitor aircraft movement and operational status of an
may include any of the following aircraft systems:
aircraft through an interrogation method where a ground radar
(1) Encoding Altimeter,
system interrogates the transponder of the aircraft and receives
(2) Remote (Blind) Altitude Encoder,
replies from the transponder.
(3) Air Data Computer (ADC), and
5.3.1.2 Function/Use:
(4) Air Data and Attitude Heading Reference System
(1) The transponder system provides control methods for
(ADAHRS).
pilot input of squawk code and selection of mode of operation.
5.3.3.2 The transponder system may interface to the air-
(2) The transponder system interfaces with the aircraft’s
craft’s navigation system for GPS or heading information
altitude sensing system for pressure altitude information.
(Mode ES – Extended Squitter), or both, which may include
(3) The transponder system replies to interrogations from
any of the following aircraft systems:
Air Traffic Control Radio Beacon System (ATCRBS) or other
(1) Attitude Heading Reference System (AHRS),
aircraft to report the aircraft’s squawk code (ModeA), altitude
(2) GPS Navigation System, and
(Mode C), aircraft identification information (Mode S), and
(3) Built-in GPS receiver.
broadcast precise flight information including Global Position-
5.3.3.3 The transponder system may interface to a
ing System (GPS) latitude/longitude (Mode ES – Extended
navigation/moving map such as a Multi-Function Display
Squitter).
(MFD) for the display of received traffic or weather
(4) The transponder system uses Side-Lobe Suppression
information, or both.
(SLS) to prevent replies to interrogation pulses other than the
primary P1 pulse. 5.3.3.4 Inputs:
5.3.1.3 Common Test Equipment: (1) Identification (IDENT) to enable constant transponder
(1) Transponder Test Set. replies for specified duration.
5.3.2 System Components—LEVEL 1AET can identify and (2) Weight-on-Wheels (WOW)/Squat Switch or equivalent
describe the following: airspeed switch input to determine if the aircraft is on-ground
5.3.2.1 Control Panel, or in-flight.
5.3.2.2 Receiver/Transmitter (R/T) unit, (3) L-Band Suppression to prevent the transponder from
5.3.2.3 Antennas, and replying to other L-Band systems on the aircraft.
F3450−20
(4) Altitude, which could be received in any of the follow- (4) The TCAS calculates the threat of collision for each
ing formats: intruder aircraft and provides aural and visual alerts to the
(a) Gillham Code, flight crew of any imminent flight hazard.
(b) RS-232 Databus, and (5) TCAS have varying levels of functionality often asso-
(c) ARINC 429 Databus. ciated with the use of an acronym correlating to the systems
functionality, which may include Traffic Advisory System
5.3.3.5 Outputs:
(TAS), Traffic Information System – A (TIS-A), Traffic Infor-
(1) L-Band Suppression to prevent other L-Band systems
mation System – B (TIS-B), Traffic Collision-Avoidance and
on the aircraft from receiving the transponder’s replies toATC
Alerting System – I (TCAS-I),Traffic Collision-Avoidance and
interrogations.
Alerting System – II (TCAS-II), or Airborne Collision Avoid-
5.3.4 System Testing—LEVEL 2 AET understands and can
ance System – II (ACAS-II).
demonstrate the following:
5.4.1.3 Common Test Equipment:
5.3.4.1 General system testing to include any of the follow-
(1) TCAS Ramp Generator.
ing methods:
5.4.2 System Components—LEVEL 1AET can identify and
(1) Built-In Test Equipment (BITE);
describe the following:
(
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