Long Term Lease To Mexico, 1987 to 1992
This page was last updated on March 12, 2021.
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(This article is an edited and expanded version of the original text used as part of the book Union Pacific - 1990 by George Cockle and Paul Withers)
Union Pacific, and predecessor Missouri Pacific, had an agreement to provide locomotives as part of a pool used to operate cross-border trains between the United States and Mexico since the late 1970s.
A new agreement for cross-border rail traffic brought with it new trains that started operating on October 1, 1984, between Chicago and Mexico City. The two trains were the southbound AI (Automotriz Industrial) and the northbound RSP (Remolgue Sobre Platafoma [flatcar]). The AI train carried southbound carloads of auto parts for assembly plants in Mexico. The RSP train carried northbound intermodal trailers and auto parts for assembly plants in the U.S. Later in 1985, the RSP train began carrying assembled autos to U. S. markets. (UPRR Info magazine, January 1985, page 18)
This cross-border agreement was first with NdeM (Nacionales de Mexico) and since the merger of all of Mexico's railroads on August 27, 1987, with NdeM as a component of National Railways of Mexico (FNM, Ferrocarriles Nacionales de Mexico). In late 1978 the pool required only three MP SD40s, but by early 1981 the pool had grown to include 18 MP SD40s. In December 1981 MP and NdeM began a run-through train between Chicago and Mexico City. In October 1984, after the UP/MP/WP merger, UP and NdeM began operating true international service between Chicago and Mexico City, crossing the border at Laredo/Nuevo Laredo.
In June 1987, in part to support the three-year old international service, UP leased 25 units to NdeM on a an "indefinite" long term lease that in fact lasted two years. Included in the lease were 18 former CRI&P GP40s, along with seven former MP 3000 class SD40s. All were returned and subsequently retired by UP in August 1989. Some of the GP40s were lettered for Union Pacific but the majority were lettered for Missouri Pacific, as a remnant of a time when MP leased almost 90 units from UP following the December 1982 merger of the two roads. NdeM was to be responsible for minor maintenance on the units. To help in the training of NdeM mechanical personnel, 20 NdeM mechanics were sent to the UP training center in Salt Lake City, Utah, to prepare for the maintenance on these 25 UP owned locomotives. The road numbers of the MP SD40s in the 1987 lease are not known, but the ex CRI&P GP40s included in the lease to Mexico were MP 600, MP 603, MP 605, MP 608, MP 611, MP 616, MP 622, MP 631, MP 632, MP 633, MP 635, UP 636, MP 637, MP 639, UP 640, MP 642, UP 643, and MP 645. MP 603 and MP 637 were returned to UP for maintenance and were found to unrepairable. They were retired in October 1988 and sold. MP 645 was included in the lease after the retirement of MP 603 and MP 637.
During early September 1989, UP agreed to furnish 46 UP-owned units to NdeM to support the projected increase in US/Mexico rail traffic, including the start up of double-stack container train service within six months. As of September 10th, 36 of the agreed on 46 units were in shop being prepared for the lease and the other 10 units were en route from other parts of the system. The first unit arrived in Mexico on September 14th. By September 19th NdeM had rejected 14 of the first 27 units that UP had offered, while accepting another 13 units. The rejected units were repaired and the lease (a horsepower-hour agreement) went into full effect. UP was responsible to keep the units running (most of the maintenance was done at Fort Worth), so the actual number of units in service in Mexico varied because there were usually several units either in the shop or en route to the shop at any one time for preventative maintenance and repairs.
On November 1, 1989, the lease agreement was increased from 46 units to 96 units. The additional 50 locomotives came from a group of UP SD40s that had been retired in June through September 1989 and which were in storage at various points around the UP system, with most of them being at Nampa, Idaho, and North Platte, Nebraska. These 50 units were removed from storage and put through the shops in Fort Worth, Texas, and North Little Rock, Arkansas, to bring them up to operational standards and began arriving in Mexico by mid-November. The new, international double stack service began on March 20, 1990 and by then there were 104 units under lease to Mexico. The leased units were placed into service on NdeM's lines south from the border crossings at Eagles Pass, Laredo, and Brownsville, Texas, and the ex-UP and ex-MP SD40s served as road power on most of the mainline freight trains along those lines between the border crossings and Mexico City. The MP ex-CRI&P and ex MKT GP40s were popular on NdeM's secondary passenger trains.
Of the 63 SD40s in the UP 3000-3122 number series that had been in long term storage in either Nampa, Idaho, and North Platte, Nebraska, at least 32 had been run through the shops in Salt Lake City, Utah, and prepared for long term storage. These 32 units had been sent to Nampa, Idaho, and were all there in storage by mid-September. When the number of units on lease to Mexico was increased to 96 in November 1989, these units were removed from storage and returned to service.
For bookkeeping and computer tracking purposes, in November 1989, 22 units operating in Mexico were redesignated; UP units became UPM units, and MP units became MPM units; the added "M" suffix denoting Mexico. In December 1989 another 74 units operating in Mexico were redesignated; more UP units became UPM units, more MP units became MPM units, and the ten MKT GP40s became MKM units. In March 1990 an additional 23 UP units were redesignated as UPM units, bringing the total number of "M" suffixed units up to the total of 119 units that had been reinstated in November 1989.
All of the 119 units designated for the Mexico lease came from a group of 121 locomotives that were part of a larger group of 189 locomotives which were retired by UP between June and September 1989, because of a projected downturn in traffic levels. After the lease was in full operation, the question of Union Pacific maintaining and leasing locomotives that had been formally retired came to light. So on November 15, 1989, UP reinstated the 121 previously retired units, with 119 units becoming available for service in Mexico; the remaining 2 units, UP 3106 and 3109, were found to be unserviceable and were retired in February and March 1990, respectively.
Almost immediately after the initial months of the Mexico lease, some units began failing because of their age (all were at least 18 years old, and the MKT GP40s were all 23 years old), and the level of usage that the locomotives received while in Mexico. In February and March 1990, nine units were removed from the lease pool and retired, along with UP 3106 and 3109 which had both been reinstated from retirement but weren't in good enough shape to join the pool in the first place. As the locomotives failed, or were found to be unrepairable by UP's own shop forces, they were removed from the lease pool and either stored or retired. By the end of 1990 there were 82 units in the lease pool, with 75 units actually in service in Mexico and seven units en route either to or from maintenance on UP. Of the remaining 37 units from the original 119 units, 19 were back on UP in storage and the other 18 units had been retired.
As the Mexican railway system began receiving its new GE Super 7 series locomotives, the need for the leased UP was reduced. In late October and early November 1990, the original pool of 119 units was reduced to a pool of 101 units as 18 units were returned to UP and stored in serviceable condition. These 18 units had an "X" added to their designation (UPM became UPMX; MPM became MPMX; and MKM became MKMX) to keep them separate, but still part of the Mexico lease fleet, and most were stored at Fort Worth, Texas, with others joining them in late 1990 and throughout 1991. These excess serviceable units were called upon as more of the operational Mexican lease pool units became unserviceable and were retired. As each unit was returned to service, its suffix designation was changed back from "MX" to "M". By the end of October 1991, 16 of the units had returned to service, taking the place of retired locomotives.
As already mentioned, FNM's locomotive purchases allowed the lease pool of UP, MP, and MKT locomotives to slowly diminish. As of February 1, 1991, the lease pool had been reduced to just 72 units, with only 16 units actually working in Mexico, and the other 56 units stored serviceable. The balance between in-service, stored, and retired units continued to change during 1991, and by mid-1992 there were only seven units in service in Mexico. All the others were stored, awaiting disposition, or actually retired, with many already sold.
At the height of the lease there were 119 units involved in the Mexico lease pool. This total included 10 former MKT GP40s, 17 former CRI&P GP40s, 19 former MP SD40s still in the MP 3000 class, 12 former MP SD40s in the UP 4000 class, and finally, 61 UP SD40s from the 3000-3122 class.
Short of access to a daily status report, the above story best relates the constantly changing picture of the Mexico lease fleet, between September 1989 and early August 1992. Right from the first, Union Pacific considered all 119 units to be fully retired from its own active fleet of locomotives, so whatever usage that they could get out of them, and still fulfill their obligations to FNM, would satisfy all interested parties. At times, even though units were shown as being in Mexico, they could very easily be sitting unused somewhere in Texas. This in addition to the units that were already retired, and/or stored serviceable. The units were moved around as required and after the first couple months, the record keeping for these already retired locomotives units became very confused.
The following comes from Keepin' On Track, A Newsletter From The Locomotive Maintenance, Planning & Technology Section of Maintenance Operations, Union Pacific Railroad, Volume 4, Number 1, October 1992:
The Locomotive Maintenance Department's interaction with the FNM Railroad is continuing to evolve into more of a partnership as opposed to what started out in September 1989 as simply a lease of our retired, older technology locomotives.
In addition to currently leasing 55 locomotives to the FNM, Pervis Miller now leads a Quality Inspection Team which includes individuals from the FNM's locomotive repair facility at Monterrey. The team has effectively resolved various leasing, material and maintenance issues in the short time it has been in existence. Also, the FNM solicited UP to bid on a proposal to provide consulting expertise at their locomotive repair facility at San Luis Potosi, Mexico.
Unfortunately, as negotiations were being finalized and Mardy Tegtmann was packing his bags for a 10-month assignment, the FNM shifted strategy and decided to push forward with its strategy to privatize. The good news is that privatization by the FNM could open up other significant opportunities for the UP.
In regard to lease activity, we have two groups of units operating in Mexico. The first group of 35 consists of approximately 30 SD40s and five GP40s which have been in use in Mexico since 1989. The lease on these units expires in September 1992. In addition to providing a continuing stream of income to the UP on locomotive assets that were retired due to age and marginal performance, a bigger benefit has been the relationship established with the FNM and the effect on keeping border operations fluid.
The second group of 20 SD40s locomotives on lease for six months starting in late July poses more of a risk for UP, but has fostered a better partnership relationship. The FNM negotiated an availability guarantee and thoroughly inspected and tested the units prior to acceptance. The Quality Inspection Team has helped smooth the startup of this agreement. Upon the expiration of this lease in January 1993, these 18 to 20 year-old units will be returned and scheduled into the 1993 life extension rebuild program.
Locomotives Leased To Mexico
Ex MKT GP40s
| Road Number |
First Retired |
Date Reinstated |
Date To MKM |
Date Stored |
Date Retired |
| MKT 170 | 28 Aug 1989 | 15 Nov 1989 | 6 Dec 1989 | 29 May 1992 | |
| MKT 171 | 28 Aug 1989 | 15 Nov 1989 | 7 Dec 1989 | 15 May 1990 | |
| MKT 172 | 28 Aug 1989 | 15 Nov 1989 | 11 Dec 1989 | 5 Jun 1991 | |
| MKT 173 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 25 Jan 1991 | |
| MKT 174 | 28 Aug 1989 | 15 Nov 1989 | 6 Dec 1989 | 29 May 1992 | |
| MKT 177 | 28 Aug 1989 | 15 Nov 1989 | 6 Dec 1989 | ||
| MKT 178 | 28 Aug 1989 | 15 Nov 1989 | 12 Dec 1989 | 23 Oct 1991 | |
| MKT 179 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 5 Jun 1991 | |
| MKT 180 | 28 Aug 1989 | 15 Nov 1989 | 13 Dec 1989 | ||
| MKT 181 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 |
Ex MP GP40s (ex CRI&P)
| Road Number |
First Retired |
Date Reinstated |
Date To MPM |
Date Stored |
Date Retired |
| MP 600 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 5 Jun 1991 | |
| MP 605 | 28 Aug 1989 | 15 Nov 1989 | 2 Dec 1989 | 23 Oct 1991 | |
| MP 608 | 28 Aug 1989 | 15 Nov 1989 | 6 Dec 1989 | 26 Feb 1991 | |
| MP 611 | 28 Aug 1989 | 15 Nov 1989 | 5 Dec 1989 | 5 Jun 1991 | |
| MP 616 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 6 Feb 1990 | |
| MP 622 | 28 Aug 1989 | 15 Nov 1989 | 5 Dec 1989 | 23 May 1990 | |
| MP 631 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 26 Jan 1991 | |
| MP 632 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 16 Mar 1990 | 29 May 1992 |
| MP 633 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| MP 635 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 636 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| MP 639 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 640 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| MP 642 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 643 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 21 Aug 1991 | |
| MP 645 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 647 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 |
Note: MPM 645 to UPM 645, 25 January 1990.
UP SD40s
| Road Number |
First Retired |
Date Reinstated |
Date To UPM |
Date Stored |
Date Retired |
| UP 3001 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 9 Mar 1990 | |
| UP 3003 | 19 Sep 1989 | 15 Nov 1989 | 22 Nov 1989 | 9 Mar 1990 | |
| UP 3004 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 21 Aug 1991 | |
| UP 3005 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3006 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 5 Oct 1991 | |
| UP 3007 | 28 Aug 1989 | 15 Nov 1989 | 4 Dec 1989 | 23 Oct 1991 | |
| UP 3008 | 28 Jul 1989 | 15 Nov 1989 | 4 Dec 1989 | 2 Mar 1991 | |
| UP 3009 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 9 Mar 1990 | |
| UP 3012 | 28 Jul 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3014 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3015 | 23 Jun 1989 | 15 Nov 1989 | 22 Nov 1989 | 21 Jan 1991 | |
| UP 3027 | 28 Aug 1989 | 15 Nov 1989 | 1 Dec 1989 | 5 Jun 1991 | |
| UP 3028 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 4 Feb 1991 | |
| UP 3030 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 9 Mar 1990 | |
| UP 3031 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 15 May 1990 | |
| UP 3032 | 17 Jul 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3042 | 23 Jun 1989 | 15 Nov 1989 | 22 Nov 1989 | 22 Jan 1991 | |
| UP 3043 | 17 Jul 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 3044 | 17 Jul 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 3045 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3056 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 15 May 1990 | |
| UP 3057 | 28 Jul 1989 | 15 Nov 1989 | 18 Dec 1989 | 5 Jun 1991 | |
| UP 3060 | 23 Jun 1989 | 15 Nov 1989 | 18 Dec 1989 | 7 Jun 1990 | |
| UP 3063 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 23 Oct 1991 | |
| UP 3066 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 19 Apr 1991 | |
| UP 3069 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3070 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 29 May 1992 | |
| UP 3076 | 28 Jul 1989 | 15 Nov 1989 | 5 Dec 1989 | 3 Jun 1990 | |
| UP 3077 | 28 Jul 1989 | 15 Nov 1989 | 22 Nov 1989 | 9 Mar 1990 | |
| UP 3079 | 28 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | 1 Oct 1991 | |
| UP 3080 | 28 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | 1 Oct 1991 | 29 May 1992 |
| UP 3082 | 23 Jun 1989 | 15 Nov 1989 | 1 Dec 1989 | 9 Mar 1990 | |
| UP 3083 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 1 Oct 1991 | |
| UP 3085 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3086 | 28 Aug 1989 | 15 Nov 1989 | 29 Nov 1989 | 29 May 1992 | |
| UP 3087 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 1 Oct 1991 | |
| UP 3088 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| UP 3089 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| UP 3090 | 28 Aug 1989 | 15 Nov 1989 | 22 Mar 1990 | 19 Apr 1990 | |
| UP 3091 | 28 Aug 1989 | 15 Nov 1989 | 6 Mar 1990 | ||
| UP 3093 | 28 Aug 1989 | 15 Nov 1989 | 7 Mar 1990 | ||
| UP 3096 | 28 Aug 1989 | 15 Nov 1989 | 22 Mar 1990 | 17 Jan 1991 | |
| UP 3097 | 28 Aug 1989 | 15 Nov 1989 | 15 Mar 1990 | 23 Oct 1991 | |
| UP 3098 | 28 Aug 1989 | 15 Nov 1989 | 5 Mar 1990 | 23 Jan 1991 | |
| UP 3099 | 28 Aug 1989 | 15 Nov 1989 | 14 Mar 1990 | ||
| UP 3101 | 28 Aug 1989 | 15 Nov 1989 | 14 Mar 1990 | 23 Oct 1991 | |
| UP 3103 | 28 Aug 1989 | 15 Nov 1989 | 7 Mar 1990 | 5 Jun 1991 | |
| UP 3105 | 28 Aug 1989 | 15 Nov 1989 | 9 Mar 1990 | 6 Jul 1991 | |
| UP 3106 | 28 Aug 1989 | 15 Nov 1989 | 6 Feb 1990 | ||
| UP 3108 | 28 Aug 1989 | 15 Nov 1989 | 8 Mar 1990 | 23 Oct 1991 | |
| UP 3109 | 28 Aug 1989 | 15 Nov 1989 | 9 Mar 1990 | ||
| UP 3110 | 28 Aug 1989 | 15 Nov 1989 | 15 Mar 1990 | 15 May 1990 | |
| UP 3111 | 19 Sep 1989 | 15 Nov 1989 | 21 Mar 1990 | 23 Oct 1991 | |
| UP 3112 | 28 Aug 1989 | 15 Nov 1989 | 22 Mar 1990 | 23 Oct 1991 | |
| UP 3113 | 28 Aug 1989 | 15 Nov 1989 | 14 Mar 1990 | 15 May 1990 | |
| UP 3115 | 28 Aug 1989 | 15 Nov 1989 | 20 Mar 1990 | ||
| UP 3116 | 28 Aug 1989 | 15 Nov 1989 | 20 Mar 1990 | 23 Oct 1991 | |
| UP 3117 | 28 Aug 1989 | 15 Nov 1989 | 13 Mar 1990 | 23 Oct 1991 | |
| UP 3118 | 25 Oct 1989 | 22 Mar 1990 | 5 Jun 1991 | ||
| UP 3120 | 28 Aug 1989 | 15 Nov 1989 | 15 Mar 1990 | 16 Jul 1991 | |
| UP 3121 | 28 Aug 1989 | 15 Nov 1989 | 20 Mar 1990 | 23 Oct 1991 | |
| UP 3122 | 28 Aug 1989 | 15 Nov 1989 | 16 Mar 1990 | 23 Oct 1991 |
Ex MP SD40s
| Road Number |
First Retired |
Date Reinstated |
Date To MPM |
Date Stored |
Date Retired |
| MP 3002 | 19 Sep 1989 | 15 Nov 1989 | 19 Dec 1989 | 15 Jan 1991 | 29 May 1992 |
| MP 3005 | 28 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | 13 Feb 1991 | |
| MP 3007 | 28 Jul 1989 | 15 Nov 1989 | 22 Nov 1989 | 20 Jan 1991 | |
| MP 3008 | 23 Jun 1989 | 15 Nov 1989 | 19 Dec 1989 | 5 Jun 1991 | |
| MP 3010 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 3 Jan 1991 | |
| MP 3012 | 28 Aug 1989 | 15 Nov 1989 | 14 Dec 1989 | 23 Jan 1991 | |
| MP 3017 | 28 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | 1 Oct 1991 | |
| MP 3018 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| MP 3019 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 9 Mar 1990 | |
| MP 3020 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| MP 3022 | 17 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | ||
| MP 3023 | 23 Jun 1989 | 15 Nov 1989 | 19 Dec 1989 | ||
| UP 4027 | 28 Aug 1989 | 15 Nov 1989 | 5 Dec 1989 | 23 Oct 1991 | |
| MP 3028 | 23 Jun 1989 | 15 Nov 1989 | 22 Nov 1989 | 23 Oct 1991 | |
| MP 3030 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| MP 3031 | 28 Aug 1989 | 15 Nov 1989 | 5 Dec 1989 | 23 Oct 1991 | |
| MP 3032 | 28 Jul 1989 | 15 Nov 1989 | 18 Dec 1989 | 12 Aug 1991 | |
| UP 4033 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| UP 4054 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 6 Feb 1990 | |
| UP 4056 | 23 Jun 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| UP 4057 | 23 Jun 1989 | 15 Nov 1989 | 19 Dec 1989 | 3 Jun 1990 | |
| MP 3059 | 19 Sep 1989 | 15 Nov 1989 | 18 Dec 1989 | 12 Aug 1991 | |
| UP 4060 | 23 Jun 1989 | 15 Nov 1989 | 19 Dec 1989 | 20 Oct 1991 | |
| UP 4061 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 14 May 1990 | |
| UP 4062 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 18 Feb 1991 | |
| UP 4063 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| MP 3064 | 28 Aug 1989 | 15 Nov 1989 | 22 Nov 1989 | 1 Oct 1991 | |
| MP 3065 | 28 Aug 1989 | 15 Nov 1989 | 18 Dec 1989 | 18 Feb 1991 | |
| UP 4066 | 17 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | 14 Jul 1990 | |
| UP 4067 | 17 Jul 1989 | 15 Nov 1989 | 19 Dec 1989 | 23 Oct 1991 | |
| UP 4068 | 28 Aug 1989 | 15 Nov 1989 | 19 Dec 1989 | 19 Apr 1990 |
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