Airlines and Canadian Pacific Airlines) had reported it to the manufacturer. Without this information, the AIB believed that it would have been extremely difficult for the pilots of G-ALHG to determine the exact nature of the emergency. A fuel problem had been noted on the aircraft five days earlier, but this did not come to light until four months after the crash. A third contributory factor was fatigue: the captain had been on duty for nearly 13 hours. This was within legal and operational limits, but the inquiry noted that he had made several errors in repeating ATC messages. The AIB also examined passenger and crew survivability during the accident. Post-mortem examinations on the passengers showed that those in the very front of the fuselage had been killed by rapid deceleration injuries, but those further aft had suffered massive crushing injuries to their lower legs that stopped them from escaping the burning wreckage. Investigators found that the bracing bars meant to keep the rows of seats separate were too weak to stop the rows from collapsing together like a concertina, and determined that had the bars been adequately strong, most of the passengers would have been able to escape the aircraft. Harry Marlow, the captain, survived but had amnesia and did not remember the accident, and the first officer died. The aircraft happened to be over an open area at the time the starboard engines cut out, and AIB investigators believed that it became completely uncontrollable after the loss of power. There was testimony from witnesses that it made a pronounced turn to port and levelled out before descending into the crash site. This suggests that Marlow exerted a degree of control and successfully avoided hitting houses. Legacy In 1998, a memorial plaque was unveiled by two survivors at the scene of the accident. In 2002 a campaign was launched to create a further memorial at the site, commemorating the rescuers who risked their lives to pull survivors from the burning aeroplane; the campaign was supported by the Prime Minister Tony Blair. The second memorial was unveiled that October. A service was held in 2007 to mark the 40th anniversary. On 4 June 2017, the 50th anniversary of the crash (and also a Sunday), a service was led at the time and place of the crash by the Bishop of Stockport, Libby Lane, and new information boards were unveiled giving