| 17.12.1986 | Alteration complete "APPLY CHECK LETTER TO CLASS & NUMBER OF APPROXIMATELY 443 LOCOMOTIVES, PASSENGER CARS AND RAIL CARS. CLASSIFY OVERLAND SLEEPING CARS. (RS4173)". | 
| 17.12.1986 | Alteration complete "APPLY CHECK LETTER TO CLASS & NUMBER OF APPROXIMATELY 443 LOCOMOTIVES, PASSENGER CARS AND RAIL CARS. CLASSIFY OVERLAND SLEEPING CARS. (RS4173)". | 
| 17.12.1986 | Alteration complete "APPLY CHECK LETTER TO CLASS & NUMBER OF APPROXIMATELY 443 LOCOMOTIVES, PASSENGER CARS AND RAIL CARS. CLASSIFY OVERLAND SLEEPING CARS. (RS4173)". | 
| 17.12.1986 | Alteration complete "APPLY CHECK LETTER TO CLASS & NUMBER OF APPROXIMATELY 443 LOCOMOTIVES, PASSENGER CARS AND RAIL CARS. CLASSIFY OVERLAND SLEEPING CARS. (RS4173)". | 
| Details: locomotive "NT 76 D" in AN "Mainland Division". 
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| 17.12.1986 | Alteration complete "APPLY CHECK LETTER TO CLASS & NUMBER OF APPROXIMATELY 443 LOCOMOTIVES, PASSENGER CARS AND RAIL CARS. CLASSIFY OVERLAND SLEEPING CARS. (RS4173)". |