Welcome to RTCA Program Management Committee Meeting Chairman Dr. Chris Hegarty, MITRE September 16, 2021
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Welcome to RTCA Program
Management Committee
Meeting
Chairman
Dr. Chris Hegarty, MITRE
September 16, 2021
Anti-Trust Policy
• RTCA meetings are conducted in strict compliance with US antitrust
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on prices, including terms of sale or credit, production plans,
marketing strategies or customer potential, or any other element of
competition between participants.
• RTCA staff will suspend any discussion that relates to such matters
and the Meeting will proceed only after appropriate limitation of such
discussions has been advised and agreed.
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Proprietary Policy
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• 1) A bona fide, public interest basis for the reference and/or usage
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public may also submit comments on documents undergoing final
review.
SAFER SKIES THROUGH COLLABORATIONIntroductions Chairman Hegarty
Agenda Item 2A:
Review/Approval Meeting
Summary
June 17, 2021
RTCA Paper No. 175-21/PMC-
2175Agenda Item 2B:
Review/Approval
Administrative SC TOR
Revisions
• SC-222 – Leadership
Changes and Deliverable
Clean Up
• SC-238 – Chairman Change
and Deliverable Clean UpAgenda Items 3A: DO-235C – Assessment of Radio Frequency Interference Relevant to the GNSS L1 Frequency Band Presenter: Dr. Chris Hegarty, SC-159 Co-Chairman September 16, 2021
Agenda Item 3B:
Approval for DO-377A
Minimum Aviation System
Performance Standards for C2
Link Systems Supporting
Operations of Unmanned
Aircraft Systems in U.S. Airspace
John R. Moore and Brandon Suarez
SC-228 Co-Chairs
16 September 2021
RTCA Paper No. 198-21/PMC-2182
RTCA Program Management CommitteeDO-377A FRAC Exit
• Final Review and Comment (FRAC) for the DO-377A was approved at
the 30th Plenary meeting of SC-228 on 16 July 2021.
• All 472 comments resolved with the commenters prior to the plenary
meeting.
Comment Breakdown
6%
15% Non-Concur
High
49% Medium
14%
Low
Editorial
16%
9/16/2021 RTCA Program Management CommitteeSummary of Non-Concur and High Comments
• Non-Concur and High Comments from Inmarsat:
• The purpose and scope of the document were not clear and were improved with additional
explanatory text and figures
• The requirements derivation process and the resulting numerical values were not clearly
explained so text and a figure was added to clarify the process
• Some key definitions were not well explained so they were added to or clarified in Section 3.
• Security requirements were not consistent with communications service provider standard
approach, so text and diagrams were adjusted to resolve
• Boeing and Honeywell commented on need to align security discussions with
existing and accepted RTCA Standards for information security considerations –
references to RTCA Standards were added and requirement for confidentiality was
removed
• NUAIR commented on inconsistencies between DO-304 A HAPS CONOPS and the
HAPS CONOPS in DO-377A – revisions were made to maintain consistency
9/16/2021 RTCA Program Management CommitteeSC-228 recommends DO-377A for
publication by RTCA.
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Agenda Item 4: Integration and Coordination Committee (ICC) Topic
Inter-Special Committee Requirements Agreement (ISRA) Instructions Presenter: Rebecca Morrison, RTCA Program Director June 17, 2021 RTCA Paper No. 207-21/PMC-2188
Key Benefits of ISRA Procedure • One Special Committee (Requesting Committee (RC)) makes a solicitation of another Special Committee (Action Committee (AC)) to recognize a dependency that exists between the two committees • The AC can make changes to the request to negotiate how the relationship should work • Informal discussions between RC and AC are encouraged during each step of ISRA process
Potential Updates to the ISRA Process • Provide a “close the loop” mechanism to be sure the work in the ISRA is completed and engagement is maintained between the RC and AC • Accelerate the speed of coming to an agreement on the ISRA • Provide details of what will be “delivered” to the RC and how we know the agreement has completed its execution
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Agenda Item 5A:
Investigate Pulling
Requirements from Documents
and Making Available in
Separate Format
Al Secen
RTCA VP, Aviation Technology and
StandardsAgenda Item 5B: Ad Hoc for Spectrum Strategy Follow Up And Agenda Item 5F: Ad Hoc Meeting with TACC Members Terry McVenes RTCA President
Agenda Item 5C: Add ICAO Representative to PMC Invite Terry McVenes RTCA President
Agenda Item 5D: Provide NASA Reference to PMC Members Action Closed Karan Hofmann PMC Secretary
Agenda Item 5E:
Clarification Feedback and
Standards for Digital Flight
John R. Moore and Brandon Suarez
SC-228 Co-Chairs
16 September 2021
RTCA Paper No. 228-21/PMC-2193
RTCA Program Management CommitteeAction Item from prior PMC:
Study on 1030/1090/978 MHz spectrum and surveillance
• Discussion with Doug Arbuckle to clarify Issue
• Agreement on Issue, but not path forward.
• Talking points from last PMC
• Future AAM operations face two transponder-related challenges
• While these challenges have been recognized by the FAA and other global
regulators, a solution is not being actively worked
• Proposals discussed by SC-228 include leveraging UAT protocols on a different frequency
(e.g. repurposed DME channel)
• Study can be informed by UAM-specific OSED beyond CONOPS developed in DO-304A
Appendix F.5
• Study can be informed by xTM (e.g. UTM) architecture and standards
• Future V2x surveillance can support ACAS sXU and ACAS Xr
V2x = Vehicle to Vehicle / Vehicle to Ground
SAFER SKIES THROUGH COLLABORATIONGap Identified in DO-304A: Digital Flight Rules
• The objective of a new set of flight rules would be to provide
safe and unfettered access to all participating vehicle operators
under all visibility conditions without incurring the limitations in
operational flexibility inherent in IFR.
• Growing momentum for a new set of flight rules that could
enable new operations and enhance existing operations
• Boeing/Airbus White Paper1
• NASA Technical Report2
• FAA/NASA UAM CONOPS3,4
• Technology convergence of classic CNS/ATM technology with
automation, mobile connectivity, information access, and
supporting ground infrastructure
• This is beyond the scope of SC-228, but we are interested in
how RTCA might play a role in this emerging concept
1. https://storage.googleapis.com/blueprint/Airbus%20Boeing%20New%20era%20of%20digital%20aviation.pdf
2. https://ntrs.nasa.gov/api/citations/20205008308/downloads/NASA-TM-20205008308%20updated.pdf
3. https://nari.arc.nasa.gov/sites/default/files/attachments/UAM_ConOps_v1.0.pdf
4. https://ntrs.nasa.gov/citations/20205011091
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What is RTCA’s role?
SAFER SKIES THROUGH COLLABORATIONRTCA’s Role in future Digital Flight: SC-228 Perspective
• The emergence of Digital Flight, regardless of Rulemaking, will
require;
• Updates to existing standards
• Communication, Navigation, Surveillance (CNS)
• Detect and Avoid / ACAS
• Terrain Avoidance
• Weather Radar
• Creation of new standards
• Digital Information / Autonomy / Air-Ground Integration / ???
SC-228 Plenary requests RTCA to consider taking a leadership role
in the development of standards for Digital Flight concept.
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Agenda Item 6A: Out of Cycle Actions since last PMC Meeting • DO-343D Errata • SC-186 Revised TOR • SC-209 Revised TOR Karan Hofmann PMC Secretary
Agenda Item 6B: Reactivation of WG-99 / SC-234 PMC Presentation Jamie Lutkas SC-234 Chairman Brian Verna Government Authorized Representative September 16, 2021 RTCA Paper No. 176-21/PMC-2176
WG-99 / SC-234 Need for Reactivation • 5G radio communication is expanding spectrum close to the radio altimeter (RA) band • Need to review DO-307 - Aircraft Design and Certification for Portable Electronic Devices (PED), section 4, regarding path loss from PED to RA in coordination with SC-239 • WIFI-6e is expanding spectrum up to 7.125 GHz, while ED-130A/DO-363 - Guidance for the Development of Portable Electronic Devices Tolerance for Civil Aircraft, section 6 just covers spectrum up to 6 GHz for retrofit PED tolerance demonstration • Assess existing PED tolerance demonstrations in view of spectrum expansions • Assess if further updates are needed, projecting the evolution of communication standards
WG-99 / SC-234 Schedule and Deliverables 16 September: RTCA PMC 21 September: EUROCAE TAC Approval by EUROCAE Council expected before call out 7 October: Public Call Out 10 November: First Plenary online (9:00 am EST 1:00 pm EST / 15:00 CET to 19:00 CET) April 2022: Documents complete FRAC/OC June 2022: Publication of updated standards through PMC and Council Deliverables: Updated DO-363 Change 2 / ED-130A Change 2 Updated DO-307A Change 1 / ED-239 Change 1 RTCA Leadership: Jamie Lutkus, Astronics (designated chair); Brian Verna, FAA (GAR) EUROCAE Chair: Robert Kebel, Airbus (suggested, volunteering); Stephan Schulte (suggested, volunteering)
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Agenda Item 6C: SC-236 Revised TOR To be Discussed under Agenda Item 6F
Agenda Item 6D: FAS Transition Update September 2021 Al Secen RTCA VP Anna von Groote EUROCAE DTP RTCA Paper No. 231-21/PMC-2195
FAS Transition
• Future of FAS: Transition to WG-FAS/SC-FAS
• Scope and TOR currently under development
• Deliverables
• WG/SC structure
• Relationship with WG-117/SC-240
• Progress:
• Initial meeting with FAS leadership, WG-117/SC-240 leadership, TAC/PMC
representatives held 26 May 2021
• Discussion with FAS Executive Committee 25 August
• Next meeting to be held 27 September 2021
• TOR to be submitted to TAC/PMC for discussion at next meetingSAFER SKIES THROUGH COLLABORATION
Agenda Item 6E: • FAA Actions Taken on Previously Published Documents FAA to Present RTCA Paper No. 203-21/PMC-2185
Agenda Item 6F: Chair Reports Rebeca Morrison RTCA Program Director September 16, 2021 RTCA Paper Number: 204-21/PMC-2186
Agenda Item 6G: RTCA International Coordination Rebecca Morrison RTCA Program Director September 16, 2021 Paper Number: 205-21/PMC-2187
Agenda Item 7A:
DO-362 Errata 2
John R. Moore and Brandon Suarez
SC-228 Co-Chairs
16 September 2021
RTCA Paper No. 195-21/PMC-2179
RTCA Program Management CommitteeAgenda Item 7A: DO-362A Errata
• DO-362 (698 pgs.) was published with a table embedded as a link
• Table E-1 documented Video Considerations Assessment
• This table was removed from later versions of the document
• We were notified by a non-member who purchased the document
that the table was missing
• This errata will return the table to the document (which is still
available in our store)
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Agenda Items 7B:
DO-365B Errata
John R. Moore and Brandon Suarez
SC-228 Co-Chairs
16 September 2021
RTCA Paper No. 196-21/PMC-2180
RTCA Program Management CommitteeAgenda Item 7B: Published DO-365B
Unintended Changes in Appendix-H Right of Way
DO-365A DO-365B
Missing Sections
H.4 & H.5
(~24 pages)
Started in RevB RAC
versions
Issues
Reported on
June 7
SAFER SKIES THROUGH COLLABORATIONThe Repair to DO-365B Appendix H
• Appendix H was restored from the DO-365A version
• One line in section 1 was changed to increase clarity
• By issuing DO-365B Errata 1, we will restore the Appendix and publish
the single line change.
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Agenda Item 7C: SC-227 Standards of Navigation Performance Terms of Reference Update Michael Cramer, SC-227 Chairman DO-283C as Joint Document September 16, 2021 RTCA Paper No. 202-21/PMC-2184
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• MASPS DO-236D & MOPS DO-283C
• Incorporate all of DO-236C Change 1
• Strengthen standards for DME navigation to offer more
resilient RNP capability –ECD 2023
• Update to reflect lessons learned in PBN operations
• Work toward operational compatibility between Flight-deck
Interval Management (FIM) and Time of Arrival Control (TOAC)
with SC-186 –ECD 2023
• MOPS DO-237C
• Develop the first public standards for presentation of data
driven charts on electronic displays in the flight deck – ECD
2024ToR Update Request – SC-227
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• The committee has been joint with EUROCAE WG-85 for
the development of the updated MASPS, DO-236D / ED-
75E
• The MOPS, DO-283() has never been a joint
RTCA/EUROCAE activity, however both SG-85 and SC-227
plenaries would like this to be joint as well
• The ToR update suggested would make this change to
the continuation of the updates to DO-283
• The committees request that the PMC approve this
changeSC-227 Request the PMC approve
this TOR change
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Agenda Item 7D: DO-262F Errata Ravi Jain SC-222 GAR September 16, 2021 Paper Number: 220-21/PMC-2192
Agenda Item 7E:
Requested Changes to SC-228
Terms of Reference
John R. Moore and Brandon Suarez
SC-228 Co-Chairs
16 September 2021
RTCA Paper Nos. 208-21/PMC-2189
RTCA Program Management CommitteePath for Developing UHF C2 Link MOPS
• RTCA SC-228 is tasked to create standards for airborne C2 radios for
various bands and permitted to consider other bands
• Phase 1 developed standards for L Band and C Band solutions
• Phase 3 currently includes a standard for LTE based C2
• Aerospace new start AURA, its avionics partners, and UAS OEMs
request approval to create a MOPS for UHF C2 Link avionics at 450
MHz spectrum authorized by FCC for AURA’s use for UAS C2
applications.
• AURA will draft MOPS for review and approval by SC-228
• Will leverage DO-362A and approach taken by SC-222 to create MOPS for
Iridium and Inmarsat SATCOM systems
• Main body of the MOPS is generic with a specific normative appendix for the
AURA specific requirements.
9/16/2021 RTCA Program Management CommitteeRequested TOR Amendment for UHF MOPS
• Add below bolded red text to page 9/10 of TOR version 11
New C2 Scope
• Create standard for use of LTE commercial networks for C2 Links used for type certificated
UAS.
• Create standard for use of the UHF spectrum band used for C2 Links used in type
certificated UAS
• Add below item to the deliverables Section on Page 5
UHF Band C2 Link Create a standard for use of UHF spectrum band for July 2023
System MOPS (DO- C2 Links used in type certificated UAS.
XXX)
9/16/2021 RTCA Program Management CommitteeRequested TOR Amendment for C-Band MOPS
• Currently the FCC service rules for 5030-5091 MHz (C-Band) do not
allow Air/Ground Links for other than Supplemental Temporary
Authorizations
• WG-2 requests that the “B” revision of DO-362A be deferred one year
to allow for FCC to propose service rules that permit Air/Ground Link
in the band
• The service rules could require changes to DO-362A to be compliant
• Change deliverables table on page 5 of TOR version 11 to:
C2 Link MOPS Incorporate changes required to harmonize July October
(Terrestrial) SATCOM compatibility with EUROCAE 2022 2023
(DO-362B) Standard. Updates required as a result on initial
implementation of A revision.
9/16/2021 RTCA Program Management CommitteeSC-228 recommends approval for
these TOR updates.
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Agenda Item 7F: Low-Range Radar Altimeter SC-239 Seth Frick, Honeywell SC-239 Co-Chair September 16, 2021 RTCA Paper No. 201-21/PMC-2183
Committee Membership
• SC-239 Leadership
• Co-chairs
• Jean-Luc Robin, Airbus
• Seth Frick, Honeywell
• Government Authorized Representative
• Charisse Green, FAA
• RTCA Program Directors
• Karan Hofmann
• Rebecca Morrison
• Secretary
• Sai Kalyanaraman, Collins AerospaceCommittee Membership
• SC-239 Participants
• Avionics Manufacturers:
• Collins Aerospace (Raytheon Technologies), FreeFlight Systems, Garmin,
Honeywell, NextNav, Panasonic Avionics, Sensor Systems, Thales
• Aircraft Manufacturers:
• Airbus, Boeing, Cessna, Joby Aviation, Textron
• Government:
• ANAC (Brazil), Airservices Australia, FAA, Transport Canada
• Airlines:
• American Airlines, United Airlines
• Other:
• AIA, AVSI, ALPA, AOPA, ADCC, ASRI, ENRI, EUROCAE, EUROCONTROL,
NeuralVol, MITREErrata Description
• A longitude value listed in Table 8-2 for one of the 5G base stations considered in
the Instrument Approach Procedure scenario is incorrect.
• Error was identified by multiple parties (both internal and external to SC-239) who noticed the
inconsistency between this tabulated longitude value and the location of the base station shown on
the map in Figure 8-1.
• The analysis script which computes interference levels for this scenario based on
the base station locations used the correct longitude value of 87° 52’ 24.6” W.
• Therefore, none of the results or conclusions presented in the report for this scenario (e.g. in
Sections 10.2 and D.2.2) were impacted by the error—it was simply a transcription error in Table 8-2.
• The correct longitude value for the base station 1256593 which should be listed in
Table 8-2 is 87° 52’ 25” W (rounded to the nearest arcsecond).Errata Description Confirmation of correct longitude:
• SC-239 Requests PMC releases this errata for distribution SAFER SKIES THROUGH COLLABORATION
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Agenda Item 8: • Next Meeting Documents Karan Hofmann RTCA PMC Secretary
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• SC-159, Navigation Equipment Using the Global
Navigation Satellite System (GNSS)
• DO-235C – Assessment of Radio Frequency Interference
Relevant to the GNSS L1 Frequency Band (possible out of cycle)
• SC-216, Aeronautical Systems Security
• New Document (DO-391) - Aeronautical Information System
Security Framework Guidance
• SC-241, Cockpit and Cabin Cleaning Committee
• DO-388A – Guidance Document on Aircraft Cleaning and
DisinfectionPMC Future Meeting Dates • December 16, 2021 • March 17, 2022 • June 16, 2022 • September 15, 2022??
September Action Item Review SAFER SKIES THROUGH COLLABORATION
ADJOURN SAFER SKIES THROUGH COLLABORATION
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