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Safety Recommendation Details

Safety Recommendation R-10-008
Details
Synopsis: On Monday, June 22, 2009, about 4:58 p.m., eastern daylight time, inbound WMATA Metrorail train 112 struck the rear of stopped inbound Metrorail train 214. The accident occurred on aboveground track on the Metrorail Red Line near the Fort Totten station in Washington, D.C. The lead car of train 112 struck the rear car of train 214, causing the rear car of train 214 to telescope1 into the lead car of train 112, resulting in a loss of occupant survival space in the lead car of about 63 feet (about 84 percent of its total length). Nine people aboard train 112, including the train operator, were killed. Emergency response agencies reported transporting 52 people to local hospitals. Damage to train equipment was estimated to be $12 million.
Recommendation: TO THE WASHINGTON METROPOLITAN TRANSIT AUTHORITY: Because of the susceptibility to pulse-type parasitic oscillation that can cause a loss of train detection by the Generation 2 General Railway Signal Company audio frequency track circuit modules, establish a program to permanently remove from service all of these modules within the Metrorail system.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Railroad
Location: Washington, D.C., DC, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA09MR007
Accident Reports: Collision of Two Washington Metropolitan Area Transit Authority Metrorail Trains Near Fort Totten Station
Report #: RAR-10-02
Accident Date: 6/22/2009
Issue Date: 8/10/2010
Date Closed: 7/19/2012
Addressee(s) and Addressee Status: Washington Metropolitan Area Transit Authority (Closed - Acceptable Action)
Keyword(s): Transit, Signals

Safety Recommendation History
From: NTSB
To: Washington Metropolitan Area Transit Authority
Date: 7/19/2012
Response:

From: NTSB
To: Washington Metropolitan Area Transit Authority
Date: 7/19/2012
Response: Because WMATA removed from service all Generation 2 General Railway Signal Company audio frequency track circuit modules within the Metrorail system, as the NTSB recommended, Safety Recommendation R-10-8 is classified CLOSED—ACCEPTABLE ACTION.

From: Washington Metropolitan Area Transit Authority
To: NTSB
Date: 6/10/2011
Response: CC# 201100318: - From James M. Dougherty, WSO-CSSD, Chief Safety Officer: Consistent with our discussions held on May 3, 2011, in collective review of the Washington Metropolitan Area Transit Authority (WMATA) "Open Acceptable" National Transportation Safety Board recommendations, the enclosed documentation is provided to support the closure of recommendation R-07-024. As requested, WMATA is providing information on our wheel truing procedures, along with examples of audits conducted by the Quality Assurance and Warranty department, whose responsibilities include, verification of accurate wheel truing at all locations.

From: NTSB
To: Washington Metropolitan Area Transit Authority
Date: 4/5/2011
Response: The NTSB notes that WMATA has replaced Generation 2 GRS audio frequency track circuit (AFTC) modules at 34 of the 103 locations; another 8 locations are moving forward for replacement. A 3-year contract for the remaining 61 locations was to begin in the first quarter of 2011. WMATA’s planned efforts constitute an acceptable response to Safety Recommendation R-10-8, which is classified OPEN – ACCEPTABLE RESPONSE.

From: Washington Metropolitan Area Transit Authority
To: NTSB
Date: 11/4/2010
Response: MC# 201000408: - From Richard Sarles, General Manager: WMATA has already replaced track circuit modules at 34 of the 103 locations. Additionally, we have another 8 locations scheduled or currently underway. We will increase the frequency of our inspections on audio frequency track circuit modules within the rail system from annual to quarterly inspections beginning January 2011. A three-year contract for this work at the remaining 61 locations is targeted for the first quarter of 2011. WMATA will proceed as soon as possible pending Board approval.