26th July 1984
British Rail (LM, Preston 
Division)
(Mystery Excursion)
| Loco Used | 40091 | 
| Stock Used | load 9 VB (leading coach M35279) | 
Route : 1Z28 throughout
| Loco | Route | 
| 40091 | Blackpool North - Kirkham & Wesham - Preston - Lostock Hall - Blackburn - Gannow Jn - Copy Pit - Hall Royd Jn - Brighouse - Mirfield - Horbury Jn - Wakefield Kirkgate - Calder Bridge Jn - Hare Park Jn - South Kirkby Jn - Adwick - Doncaster - Bessacarr Jn - Trent Jn - Gainsborough Lea Road - Lincoln Central - Sleaford - Boston - Skegness | 
| 40091 | Skegness - (reverse of outward route) - Blackpool North | 
Notes :
(1) Gordon Lacy comments: This train had considerably more passengers on the 
return journey, due to the choice of motive power!  The Sleaford stop on the 
return was to set down some passengers who had 'accidentally got on the wrong 
train'!

With 08060 on the right, 40091 passes Pelham Street Jn SB with the outward
leg of the mystery tour (photo: Gordon Lacy)
Sources : Patrick Moss, Nick Ralph & Gordon 
Lacy
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Timings (Partial - Booked & Actual)
(from Gordon Lacy)
| Location | Booked | Actual | Booked | Actual | |
| Blackpool | 06.45d | ??.?? | ??.??a | ? | |
| Lincoln Central | ? | ? | 19.45a ~ 19.47d | 19.46 ~ 19.48 | |
| Pelham Street Jn | ? | 10/45 | 19/44 | 19/45 | |
| Sleaford North Jn | ? | ? | 19/17 | 19/22½ | |
| Sleaford | ? | ? | 19/12 | 19.14 ~ 19.16 | |
| Heckington | ? | ? | ? | 19/05 | 19/06½ | 
| Hubberts Bridge | ? | ? | 18/57 | 18/58 | |
| Boston | ? | ? | 18.49a ~ 18.51d | 18.49 ~ 18.52 | |
| Skegness | ??.??a | ??.?? | 18.15d | ??.?? |