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-13931
Subject: I: Solicitation of Comments: Revisions to MSRP F, Sensors, S-920, Component
Identification Bar Code Standard – Sections 10 Wheel Set CID Labels
Date Issued: February 3, 2022
Date Effective: February 3, 2022
Group: Manufacturer
Summary: AAR’s Component Tracking Taskforce & the Equipment Health Monitoring Committee recently approved a draft modification to the subject section as it relates to the wheelset CID label. The proposed change includes the addition of a new element (C012) to the wheel set data glossary to allow for a new, optional, derived field, indicating on the wheelset CID label in human readable text whether the wheels are new (N) or turned (T), as shown on figure 10.1 & 10.2 in Section 10. The proposed change also includes a modification to data element (C117) on the wheel data glossary to strike text referencing a future acknowledgement of this status in the wheelset data glossary, & adds a statement that values for C012 & C117 must be the same.
C-13932
Subject: DRAFT S-9009 – Certificate Requirements is available for comment, in support of MSRP K-V, Electronics Environmental Requirements & Systems Management
Date Issued: February 7, 2022
Date Effective: February 7, 2022
Group: Locomotive
Summary: The Positive Train Control Interoperability Committee is publishing DRAFT S-9009 – Certificate Requirements for review & comment. This document provides guidance for managing X.509 certificates to ensure interoperability & minimum interoperable security practices.
C-13933
Subject: Implementation of Revisions to MSRP Section T, Interoperable Fuel Tenders for Locomotives, Specification M-1004, Specification for Fuel Tenders
Date Issued: February 9, 2022
Date Effective: February 9, 2022
Group: Manufacturer, Repair Shop
Summary: The purpose of this circular letter is to notify the industry of revisions to the MSRP – Section T, Interoperable Fuel Tenders for Locomotives, Specification M-1004 Specification for Fuel Tenders. On December 31, 2021, Circular Letter C-13921 was issued to solicit comments. No comments were received.
C-13934
Subject: DRAFT S-9451.V2.0 – ITCSM Common Systems Management Requirements is available for review & comment in support of MSRP – Section K-V, Electronics Environmental
Requirements & Systems Management.
Date Issued: February 9, 2022
Date Effective: February 9, 2022
Group: Locomotive
Summary: The Positive Train Control Interoperability Committee is publishing DRAFT S9451.V2.0 – ITCSM Systems Management Requirements for review & comment. The purpose of this document is to describe the L1 requirements established for the ITCSM system. These requirements are based on information & specifications provided by the Interoperable Train Control (ITC) technical teams using the systems management principles defined by the ITC
Architecture team. In order to provide time for review & comment, this document will have a 10-day comment period.
C-13935
Subject: Solicitation of Comments for Revisions to MSRP Section S, Casting Details, Specification M-220, Casting Component Nondestructive Testing Requirements
Date Issued: February 11, 2022
Date Effective: February 11, 2022
Group: Manufacturer, Repair Shop
Summary: The purpose of this circular letter is to solicit comments for revisions proposed to Section S, M 220, Casting Component Nondestructive Testing Requirements, regarding updates to various inspection requirements including yoke placements & images.
C-13936
Subject: Solicitation of Comments for Revisions to MSRP Section S, Casting Detail Specification M-211, Foundry & Product Approval Requirements for the Manufacture of Couplers, Coupler Yokes, Knuckles, Follower Blocks, & Coupler Parts
Date Issued: February 22, 2022
Date Effective: February 22, 2022
Group: Manufacturer, Repair Shop
Summary: : The purpose of this circular letter is to solicit comments for revisions proposed to Section S, Specification M-211, Foundry & Product Approval Requirements for the Manufacture of Couplers, Coupler Yokes, Knuckles, Follower Blocks, & Coupler Parts, regarding updates to couplers & knuckles in App. A – Referenced Figures & Tables & updates to App. E & F Design Features for coupler head lug.
CPC-1388
Subject: Notice to Tank Car Facilities Regarding Implementation of Adverse Audit Finding Report (AAFR) Online Tool
Date Issued: February 22, 2022
Date Effective: April 4, 2022
Group: Manufacturer, Repair Shop
Summary: : The AAR is deploying a new AAFR online tool for tank car facilities. This tool will reside in the existing AAR online system for facility certification & replaces the AAFR paper & email communication processes between the facility primary point of contact & the accredited/certified lead auditor. AAR will also be offering Demonstration Webinars to showcase the navigation & features of this tool. The use of this online tool becomes effective & mandatory for tank car facility audits performed after April 4, 2022.