9/24/2023 0 Comments Klm boeing 747 cockpit^ " "A look back at Alaska volcano's near-downing of a 747" "."Jet Lands Safely After Engines Stop in Flight Through Volcanic Ash". ^ a b Witkin, Richard (16 December 1989).List of airline flights that required gliding.It joined the KLM Asia fleet upon the subsidiary's establishment in 1995, until it was returned to KLM in 2012 and repainted in the standard KLM livery after a maintenance check. ![]() ![]() The aircraft, PH-BFC, remained in service with KLM until its retirement from the fleet on 14 March 2018. KLM continues to operate the Amsterdam-Tokyo route, but as Flight 861, and it is now an eastbound flight stopping at Incheon, using a Boeing 787. A shipment of 25 African birds, two genets, and 25 tortoises aboard the plane was diverted to an Anchorage warehouse, where eight birds and three tortoises died before the mislabeled shipment was discovered. In this case, the ash caused more than US$80 million in damage to the aircraft, requiring all four engines to be replaced, but there were no human deaths and no one was injured. Give us radar vectors please! Recovery and aftermath The cockpit crew inspects the damage caused to PH-BFC by the ash cloud in Anchorage the day after the incident.Īfter descending more than 14,000 ft (4250 m), the crew restarted the engines and safely landed the plane. Pilot: KLM 867 we have flame out all engines and we are descending now! Anchorage Center: KLM 867 heavy, Anchorage? Pilot: KLM 867 heavy, we are descending now: we are in a fall! Pilot: KLM 867, we need all the assistance you have, sir. Pilot: Climbing to level 390, we're in a black cloud, heading 130. Anchorage Center: KLM 867 heavy, roger, left at your discretion. Pilot: We have to go left now: it's smoky in the cockpit at the moment, sir. It's just a little browner than the normal cloud. The following edited transmissions took place between Anchorage Center, the air traffic control facility for that region, and KLM 867: Pilot: KLM 867 heavy is reaching level 250 heading 140 Anchorage Center: Okay, Do you have good sight on the ash plume at this time? Pilot: Yea, it's just cloudy it could be ashes. These power transfers were later verified from the flight data recorder. The temporary blanking of the instruments gave the appearance that standby power had failed. This switching on and off caused repeated power transfer interruptions to the flight instruments. ![]() On some of the attempts, as one or more (but not all) engines started to operate, the main generator switched back on. The captain performed the engine restart procedure, which failed on the first few attempts, and repeated it until restart was achieved. Standby power on the 747-400 is provided by two batteries and inverters. When all four main generators shut off due to the failure of all the engines, a momentary power interruption occurred when the flight instruments transferred to standby power. One report assigned the engine shutdown to the conversion of the ash into a glass coating inside the engines that fooled the engine temperature sensors and led to an auto-shutdown of all four engines. The Boeing 747-400, less than six months old at the time, flew through a thick cloud of volcanic ash from Mount Redoubt, which had erupted the day before.Īll four engines failed, leaving only critical systems on backup electrical power. On 15 December 1989, KLM Flight 867, en route from Amsterdam to Narita International Airport Tokyo, was forced to make an emergency landing at Anchorage International Airport, Alaska, when all four engines failed. Narita International Airport, Tokyo, Japan Quadruple engine failure due to blockage by volcanic ashĪmsterdam Airport Schiphol, Amsterdam, NetherlandsĪnchorage International Airport, Anchorage, Alaska, United States PH-BFC, the aircraft involved in the incident, seen in 2014
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