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12/11/2017
 
 
 
 
 
Owner: Burlington Northern
Model:Rebuilt EMD E9AMBuilt As:CBQ 9972 (E8A)
Serial Number:18314Order No:2059
Frame Number:2059-A3Built:8/1953
Notes:CB&Q 9972 BN 9972 9906 MARC 66
Other locos with this serial:  BN 9972(E8A) CBQ 9972(E8A) MARC 66(E9AM) BN 9906(E9AM) SLRG 520(E9AM)
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BN 9906 Rebuilder's Plate
Title:  BN 9906 Rebuilder's Plate
Description:  BN E9A 9906 Was CB&Q E8A 9972.
Photo Date:  6/17/1978  Upload Date: 9/6/2008 12:21:37 AM
Location:  Galesburg, IL
Author:  Marty Bernard
Categories:  Roster
Locomotives:  BN 9906(E9AM)
Views:  398   Comments: 0
BN 9906
Title:  BN 9906
Description: 
Photo Date:  6/17/1978  Upload Date: 9/6/2008 12:21:38 AM
Location:  Galesburg, IL
Author:  Marty Bernard
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  399   Comments: 1
BN 9906
Title:  BN 9906
Description: 
Photo Date:  6/17/1978  Upload Date: 9/6/2008 12:21:38 AM
Location:  Galesburg, IL
Author:  Marty Bernard
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  1183   Comments: 1
BN E9A 9906 Was CB&Q E8A 9972
Title:  BN E9A 9906 Was CB&Q E8A 9972
Description: 
Photo Date:  6/17/1978  Upload Date: 9/6/2008 12:21:39 AM
Location:  Galesburg, IL
Author:  Marty Bernard
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  373   Comments: 0
BN westbound commuter trains
Title:  BN westbound commuter trains
Description:  2 westbound BN commuter trains approach the suburban station in Congress Park, IL
Photo Date:  8/9/1978  Upload Date: 1/10/2010 5:03:06 PM
Location:  Congress Park, IL
Author:  Bill Wilcox
Categories:  Passenger,Action
Locomotives:  BN 9906(E9AM) BN 9913(E9AM)
Views:  329   Comments: 2
BN E9Am 9906
Title:  BN E9Am 9906
Description:  Burlington Northern E9Am 9906, almost at Canal Street in Chicago, Illinois on an unknown day in September 1979, Kodachrome by Chuck Zeiler. Built as CB&Q E8 9972 in August 1953 (c/n 18314) on EMD Order 2059A, it became BN 9972 on March 2, 1970, was sold to the West Suburban Mass Transit District April 1, 1977, was rebuilt by Morrison Knudsen in May 1978, returned as 9906 and was leased back to the BN for operation and maintenance until retired in July 1992, becoming MARC 66.
Photo Date:  9/1/1979  Upload Date: 8/25/2009 7:26:14 PM
Location:  Chicago, IL
Author:  Chuck Zeiler
Categories:  Roster
Locomotives:  BN 9906(E9AM)
Views:  277   Comments: 0
Rush hour is almost over at Aurora
Title:  Rush hour is almost over at Aurora
Description:  BN 9906 coming into the old Aurora train station(Charlie Peekman/Steven kakoczki collection)
Photo Date:  12/2/1979  Upload Date: 8/30/2007 5:20:03 PM
Location:  Aurora, IL
Author:  Steven Kakoczki
Categories:  Passenger
Locomotives:  BN 9906(E9AM)
Views:  391   Comments: 0
BN 9906
Title:  BN 9906
Description:  Inside the 14th street shop. south of Union Station.
Photo Date:  1/1/1980  Upload Date: 1/31/2007 8:43:08 PM
Location:  Chicago, IL
Author:  marc malnekoff
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  270   Comments: 0
BN 9906
Title:  BN 9906
Description: 
Photo Date:  7/10/1980  Upload Date: 12/5/2007 2:37:19 PM
Location:  Westmont, IL
Author:  C.W. Lahickey
Categories:  Passenger
Locomotives:  BN 9906(E9AM)
Views:  300   Comments: 0
BN 9906
Title:  BN 9906
Description: 
Photo Date:  7/12/1980  Upload Date: 12/5/2007 2:40:07 PM
Location:  Chicago, IL
Author:  C.W. Lahickey
Categories:  Passenger
Locomotives:  BN 9906(E9AM)
Views:  257   Comments: 1
BN 9906
Title:  BN 9906
Description:  BN 9906, exact date unknown
Photo Date:  11/1/1982  Upload Date: 7/16/2007 9:03:18 AM
Location:  La Grange, IL
Author:  Tim Vermande
Categories:  Passenger
Locomotives:  BN 9906(E9AM)
Views:  240   Comments: 0
BN E9Am 9906
Title:  BN E9Am 9906
Description:  BN E9Am 9906 at Roosevelt Road in Chicago, Illinois on July 13, 1983, photo by Chuck Zeiler. This train has just left Union Station and is approaching Canal Street, so he is likely in the process of conducting his running brake test. I have had previous discussions with Karl Rethwisch, a former CB&Q/BN Locomotive Engineer, and he revealed the characteristics of the 24RL brake schedule as applied to the CB&Q E-units. I inquired if the rebuilt E's retained the 24RL brakes, and here is his relpy:

The M-K units came back to us with a replacement for the 24RL schedule called the PS68. After using the thing a few times I bestowed a name on it that would probably not fit well in most articles but did retain the letters PS. The intentions of the design was twofold; eliminate the need for two separate brake systems, and provide a means of recharging the air system much faster than was possible with a conventional brake system. Recharge is the term used when, after releasing the train brakes, the air that was used to apply them is replaced in order to bring the system back to a fully charged state. The air in the entire trainline is effected by an application and is reduced by an amount equal to the reduction made by the Engineer. This reduction in brakepipe pressure causes the control valves to allow reservoir air to flow to the cylinders and press the shoes against the wheels. After releasing the brakes the cylinder air is vented to the atmosphere and is, for purposes of brake 'health', lost. The air used in an application MUST be replaced in order to have air available for subsequent applications, hence, RECHARGE.

The PS68 operated in a somewhat conventional manner as it related to brakepipe reductions and lapping. For this discussion, LAP is just like opening a sink faucet, filling a glass to your desired level and closing the faucet. In a brake valve, no air flows through it when lapped. The PS68 now departs from conventional brake valve design in that it adds a HOLDING feature to the positions available to the Engineer. As noted, when a brake valve is LAPPED no air flows anywhere, meaning that no air can be put into the trainline to replace that just used. HOLDING: After making the necessary brakepipe reduction and while waiting for the speed to reduce to zero, the brake valve is placed in the holding position. Electromagnetic valves on each car act to 'HOLD' the air pressure in the brake cylinders while, at the same time, allow air from the engine to flow into the brakepipe, thereby recharging it. I won't deal with the vagaries of this brake valve right now as it would add considerable length to this discussion. I'll say it was NOT my favorite brake valve.
Photo Date:  7/13/1983  Upload Date: 12/5/2009 1:28:33 PM
Location:  Chicago, IL
Author:  Chuck Zeiler
Categories:  Roster,Track
Locomotives:  BN 9906(E9AM)
Views:  370   Comments: 2
BN E9Am 9906
Title:  BN E9Am 9906
Description:  Burlington Northern E9Am 9906 backing to Union Station in Chicago, Illinois on July 13, 1983, photo by Chuck Zeiler. Built for the CB&Q as E8 9972 in August 1953 (c/n 18314) it became BN 9972 on March 2, 1970, sold to the West Suburban Mass Transit District April 1, 1977, was rebuilt by Morrison Knudsen in May 1978, returned as 9906 and was leased back to the BN for operation and maintenance until retired in July 1992.
Photo Date:  7/13/1983  Upload Date: 6/18/2008 12:24:51 PM
Location:  Chicago, IL
Author:  Chuck Zeiler
Categories:  Roster
Locomotives:  BN 9906(E9AM)
Views:  351   Comments: 0
BN 9921
Title:  BN 9921
Description: 
Photo Date:  10/1/1983  Upload Date: 2/26/2013 9:36:50 AM
Location:  Chicago Union Station, IL
Author:  Bob Hasty
Categories:  Roster,Yard,Passenger
Locomotives:  BN 9921(E9AM) BN 9906(E9AM)
Views:  141   Comments: 0
BN 9921
Title:  BN 9921
Description: 
Photo Date:  10/1/1983  Upload Date: 2/26/2013 9:37:21 AM
Location:  Chicago Union Station, IL
Author:  Bob Hasty
Categories:  Roster,Yard,Passenger
Locomotives:  BN 9921(E9AM) BN 9906(E9AM)
Views:  147   Comments: 0
BN 9921
Title:  BN 9921
Description: 
Photo Date:  10/1/1983  Upload Date: 2/26/2013 9:37:55 AM
Location:  Chicago Union Station, IL
Author:  Bob Hasty
Categories:  Roster,Yard,Passenger
Locomotives:  BN 9921(E9AM) BN 9906(E9AM)
Views:  104   Comments: 0
BN 9925
Title:  BN 9925
Description: 
Photo Date:  10/23/1983  Upload Date: 3/11/2010 3:45:13 PM
Location:  Chicago, IL
Author:  marc malnekoff
Categories: 
Locomotives:  BN 9925(E9AM) BN 9906(E9AM)
Views:  197   Comments: 0
BN 9906
Title:  BN 9906
Description: 
Photo Date:  10/23/1983  Upload Date: 3/11/2010 3:45:33 PM
Location:  Chicago, IL
Author:  marc malnekoff
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  119   Comments: 0
Dinky
Title:  Dinky
Description:  An Aurora train passes Halsted St on its way to the racetrack.
Photo Date:  3/21/1984  Upload Date: 6/4/2014 2:52:07 AM
Location:  Chicago, IL
Author:  Tom Beckett
Categories:  Station,Signal,Passenger,Action
Locomotives:  BN 9906(E9AM)
Views:  66   Comments: 0
BN 9906
Title:  BN 9906
Description:  BN 9906, exact date unknown
Photo Date:  5/1/1984  Upload Date: 7/16/2007 9:06:21 AM
Location:  Chicago, IL
Author:  Tim Vermande
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  285   Comments: 0
BN 9906
Title:  BN 9906
Description: 
Photo Date:  6/1/1984  Upload Date: 3/30/2008 6:22:55 PM
Location:  Chicago, IL
Author:  marc malnekoff
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  272   Comments: 1
BN 9906 at Belmont Ave.
Title:  BN 9906 at Belmont Ave.
Description: 
Photo Date:  10/4/1984  Upload Date: 9/6/2008 12:21:40 AM
Location:  Downers Grove, IL
Author:  Marty Bernard
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  309   Comments: 1
BN 9906
Title:  BN 9906
Description: 
Photo Date:  6/1/1985  Upload Date: 11/28/2014 9:16:16 PM
Location:  Chicago, IL
Author:  Dave Ritter
Categories:  Roster,Yard
Locomotives:  BN 9906(E9AM)
Views:  86   Comments: 0
BN 9906
Title:  BN 9906
Description:  1237 WB
Photo Date:  8/26/1986  Upload Date: 9/5/2015 8:20:52 AM
Location:  Naperville, IL
Author:  Bruce Gage
Categories:  Station,Passenger,Action
Locomotives:  BN 9906(E9AM)
Views:  63   Comments: 0
BN 9906
Title:  BN 9906
Description: 
Photo Date:  12/4/1989  Upload Date: 5/7/2010 2:54:00 PM
Location:  Eola, IL
Author:  Paul Meyer
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  150   Comments: 1
BN 9906
Title:  BN 9906
Description: 
Photo Date:  6/17/1991  Upload Date: 3/30/2008 6:43:56 PM
Location:  Chicago, IL
Author:  marc malnekoff
Categories: 
Locomotives:  BN 9906(E9AM)
Views:  212   Comments: 0
BN 9906
Title:  BN 9906
Description:  Train 1215 makes a station stop.
Photo Date:  9/20/1991  Upload Date: 4/3/2013 9:45:16 PM
Location:  Brookfield, IL
Author:  Stephen Borleske
Categories:  Signal,Passenger,Action
Locomotives:  BN 9906(E9AM)
Views:  86   Comments: 1
BN 9906, BN 9900
Title:  BN 9906, BN 9900
Description:  While train 1249 makes it's station stop, train 1255 roars past on the center track.
Photo Date:  9/20/1991  Upload Date: 4/8/2013 10:24:05 PM
Location:  Brookfield, IL
Author:  Stephen Borleske
Categories:  Signal,Passenger,Action
Locomotives:  BN 9906(E9AM) BN 9900(E9AM)
Views:  147   Comments: 1
BN 9906
Title:  BN 9906
Description:  E9Au
Photo Date:  6/28/1992  Upload Date: 11/29/2013 12:18:03 PM
Location:  Chicago, IL
Author:  Doug Tilley
Categories:  Roster,Yard
Locomotives:  BN 9906(E9AM)
Views:  78   Comments: 0


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