senate investigation, a coroner inquest into the crash was also held. During the inquest, a member of the Nigerian Airspace Management Agency (NAMA) accused the agency's emergency response team of failing to act properly. NAMA released a transcript of the communication between the crew of Flight 0992 and Lagos ATC and the member argued that authorities should have activated the emergency immediately after the pilots had reported that there was something wrong with the aircraft. The inquest further revealed that the search and rescue operation was uncoordinated and had been executed in a haphazard manner. Investigation Because the aircraft was American-made, the United States National Transportation Safety Board (NTSB) had observer status for the investigation. United States Federal Aviation Administration, Boeing and Pratt & Whitney Canada also sent their representatives to assist the investigators. Both the cockpit voice recorder (CVR) and flight data recorder (FDR) were recovered from the crash site on 4 June in charred condition. The damage of the post-crash fire to the FDR was so severe that the digital tape of the recorder melted. Thus, the recorder failed to yield any information. However, the CVR memory card was still in good condition, despite its severely burnt casing. Nearly 31 minutes of conversation were recovered from the CVR. One day after the crash, a top official from the Nigerian Aerospace Management Agency (NAMA) accused Dana Air of being ignorant even though the airline was aware that the crashed aircraft was not safe enough for passenger service. She alleged that the owner of Dana Air had prior knowledge of the aircraft being faulty yet the owner decided to "throw caution to the wind" and keep the aircraft in passenger service. Two other officials from NAMA further supported the claim, stating that Dana Air should be charged with murder as the crashed aircraft had history of multiple problems. Asked for confirmation on the claims, NAMA decided to deny the reports, stating that "it is not our responsibility to do so." Engine failure The crew of Flight 0992 had reported dual-engine failure just minutes before it crashed onto the packed residential area of Iju-Ishaga. Crash site inspection confirmed that both engines had not generated much power as the observed damage was consistent with low-to-no RPM at the time of impact. Further examination was therefore needed to confirm the source of the failure. As the engines were overhauled by the Miami-based Millenium