This notification provides a brief summary of each AAR Circular Letter issued during the prior month. TrinityRail monitors these Circular Letters as they relate to or may impact TrinityRail’s fleet, its customers, its shop network and its manufacturing operations. Please click on the hyperlinks below to access the full circular. The circular number is hyperlinked to the TrinityRail QA Portal. Members of the portal will be able to open the Circular Letters and any attachments. Non-members will need to access the Circulars via their AAR Circular Subscriptions.
These Circular Letter – Quick Notes are intended to improve accessibility to the users and are not proof of revision to the AAR, MSRP’s, Office or Field Manuals per AAR MSRP-J M-1003 2.3.5.
C-14008
Subject: Save the Date – Announcing the 2023 AAR’s 35th Quality Assurance Auditor & Industry Conference
Date Issued: August 3, 2022
Date Effective: August 3, 2022
Group: Information
Summary: The AAR QAC has scheduled their Annual AAR Quality Assurance Auditor & Industry Conference for February 7-9, 2023, in New Orleans, Louisiana.
C-14009
Subject: IMPLEMENTED, AAR MSRP, Section K-1 Railway Electronics Systems Architecture & Concept of Operations, Standard S-9080.V3.0
Date Issued: August 5, 2022
Date Effective: August 5, 2022
Group: Locomotive
Summary: S-9080.V3.0 – Positive Train Control Interoperability Committee Policy, defines policy-related items related to or required for PTC interoperability & document standard associated with each. S-9080.V3.0 will be incorporated into the next issue of the MSRP Section K-1. In the interim please be governed accordingly.
C-14010
Subject: AAR M-1003 Quality Assurance Training Class Schedule
Date Issued: August 16, 2022
Date Effective: August 16, 2022
Group: Information
Summary: The AAR QAC is announcing the final schedule for the remaining 2022 M-1003 Quality Assurance Training classes.
C-14011
Subject: Solicitation of Comments: Revisions to MSRP F, Sensors, S-6008 Data Summary – Salient Wheel Impact
Date Issued: August 24, 2022
Date Effective: August 24, 2022
Group: Locomotive
Summary: The Equipment Health Monitoring Committee recently approved a modification as it relates to the autoclose logic for wheel impact load detectors.
C-14012
Subject: IMPLEMENTED, AAR MSRP, Section K-IV Office Architecture & Railroad Electronics Messaging, Standard S-9371.V4.0
Date Issued: August 25, 2022
Date Effective: August 25, 2022
Group: Locomotive
Summary: S-9371.V4.0 – PTC Onboard Segment – Energy Management Interface Control Document, contains the messages passed between a PTC onboard segment & an Energy Management system that operates on a locomotive.
C-14013
Subject: Solicitation for Preliminary Comments for Revisions to the Field Manual of the AAR Interchange Rules, Rule 53 Running Boards – Dome Platforms – Brake Steps – Cross Platforms.
Date Issued: August 25, 2022
Date Effective: August 25, 2022
Group: Repair Shop
Summary: The purpose of this circular letter is to solicit preliminary comments & industry input for revisions proposed to the Field Manual of the AAR Interchange Rules, Rule 53. The primary intent of this circular is to gather product information for the reformatted correct repair tables, though comments will also be accepted on other sections of the Rule.
C-14014
Subject: IMPLEMENTED, AAR MSRP, Section K-IV Office Architecture & Railroad Electronics Messaging, Standard S-9370.V.1.0
Date Issued: August 26, 2022
Date Effective: August 26, 2022
Group: Locomotive
Summary: S-9370.V1.0 – Interoperable Event & Status Service has been revised.
C-14015
Subject: IMPLEMENTED, AAR MSRP, Section K-IV Office Architecture & Railroad Electronics Messaging, Standard S-9355.V2.0
Date Issued: August 26, 2022
Date Effective: August 26, 2022
Group: Locomotive
Summary: S-9355.V2.0 – Class C Messaging, specifies the Class C messaging protocol. Sufficient detail for implementation is provided. Standard S-9355.V2.0 was Adopted in 2010 & Last Revised 2022. S-9355.V2.0 will be incorporated into the next issue of the MSRP Section K- IV. In the interim, please be governed accordingly.
C-14016
Subject: IMPLEMENTED, AAR MSRP, Section K-IV Office Architecture & Railroad Electronics Messaging, Standard S-9355 Appendix A V1.0
Date Issued: August 26, 2022
Date Effective: August 26, 2022
Group: Locomotive
Summary: S-9355.App. A V1.0 – Class C Messaging – Class C Multicast Message Groups, the content in this document is external content to the requirements in S-9355. The update frequency for the AAR document & the content of this appendix is not the same; therefore, the information in the appendix is stored separately from the document. This information shall be considered part of S-9355.
C-14017
Subject: Notice of Implementation of Circular, Rules Governing the Loading, Blocking & Bracing of Freight in Closed Containers & Trailers in Intermodal Service
Date Issued: August 29, 2022
Date Effective: August 29, 2022
Group: Locomotive
Summary: The AAR’s Damage Prevention & Freight Claim Committee has approved changes to Circular No. 43-G, Rules Governing the Loading, Blocking & Bracing of Freight in Closed Trailers & Containers. This revision to Circular 43 is now implemented & effective immediately.
C-14018
Subject: Implementation: Revisions to MSRP F, Sensors, S-6103 Wheel Profile Detector – Section 5.0 Measurement Standards
Date Issued: August 30, 2022
Date Effective: August 30, 2022
Group: Locomotive
Summary: Equipment Health Monitoring Committee released a comment circular (C-14000) covering draft modifications to the subject section as it relates to measurement points for the flange thickness measurement, section 5.2.2 & App. B, Figure B.1. The changes are being made to conform to the measurement described in Field Manual – Rule 41 A.1.a in which a wheel can show cause for attention at any time for thin flange.