The reversing was only expected to be short-lived due to a technical issue with the TOPS computer system. Freightliner has split its Class 59, ‘66’ and ‘70’ fleets between its Heavy Haul and Intermodal businesses sectors in early September only to return them to their original pools. Freightliner has split its Class 59, ‘66’ and ‘70’ fleets between its Heavy Haul and Intermodal businesses sectors in early September only to return them to their original pools. The new pools are DDHH – Heavy Haul Class 70; 70001-008 / 010 / 011 / 015-017 / 020, DDHJ – Heavy Haul, restricted use; 66418, 66503 / 504 / 534 / 543 / 592 / 597, 70014, DDHM – Heavy Haul, Class 66 (long range fuel tanks); 66536 / 537 / 545-548 / 550 / 555-566 / 585, DDHN– Heavy Haul, (Class 66 standard fuel tanks); 66413-416 / 419 / 420, 66587-590 / 594, 66951-953 / 957, DDHS– Heavy Haul, (60mph Class 66), 66601-607 / 610 / 613-623 and DDII – Mendip aggregates; 59001 / 004 / 005, 59101-104, 59201-206. Those existing pools remaining are DFLC – Intermodal (Class 90s); 90003-016 / 018 / 021 / 039-045 / 047-049, DFLS – shunters; 08530 / 531 / 585, 08624 / 691, 08785, 08891, DFIM – Intermodal Class 66; 66501 / 502 / 505-520 / 522-525 / 528 / 531-533 / 538-542 / 554 / 567-572, DFIN – intermodal Class 66 (low emission); 66593 / 596 / 598 and DHLT – stored locomotives; 08575, 59002, 66552 / 591, 70013 / 018 / 019.