The left main landing gear touched down directly afterwards which resulted in the disengagement of the go-around mode. The crew only realised about 30 ft above the runway that something was not correct as the airplane slightly banked to the left and then drifted left. This means, the airplane followed the localizer signal. Because there was only a short interference of the localizer signal neither the near field nor the far field monitor – which monitor the proper function of the ILS – registered a malfunction of the ILS. Therefore, the crew had to take into consideration that ILS interferences due to other airplanes on the ground or in the air were possible.Īll three receiver antennas of the airplane received identical signals from the localizer on the ground so that on board no malfunction was indicated.
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The air navigation service provider stated that if the controller had been informed he would not have allowed the BAE 146-RJ85, waiting on taxiway B4, to take off ahead of the B 777. separation between departing and approaching aircraft was one runway length. Since the controller did not have any information that the crew intended to conduct an automatic landing he did not separate the aircraft in accordance with the required separation minima for CAT II/III but for CAT I conditions i.e. The crew knew that under the prevailing CAT I flight operations the safety measures of all-weather operations CAT II/III were not present. The crew did not inform the approach controller of their intention to conduct an automatic landing. At the same time he retracted the ground spoilers manually which had automatically been deployed at the time of the touchdown. The PIC stated he had tried to initiate a goaround procedure by pushing the TO/GA buttons on the thrust levers and thereby triggering the go-around mode once it had been noticed that the airplane banked to the left. The crew stated that during the approach and the landing there were no indications as to malfunctions or system failures. There were no injuries or apparent aircraft damage. The airplane veered off the runway again, turned left by about 40°, and came to a stop in the grass south of and parallel to runway 08R. The aircraft crossed the runway with a heading of about 120°. The airplane turned right by about 40°, re-entered the runway close to the intersection with taxiway B6, about 1,566 m beyond the threshold. Because of the system design the autopilot disengaged due to crew inputs via the rudder pedals. The largest lateral deviation from the runway was reached at about 1,242 m beyond the threshold speed was 109 kt KIAS. For about 400 m the airplane rolled through the grass north of runway 08R in a slightly curved right hand turn. The autopilot was still engaged as the airplane moved toward the left runway edge and veered off the runway with a speed of 123 kt (KIAS) about 944 m beyond the threshold in the area of taxiway B4. At that time the Auto Flight System (AFS) switched to rollout mode. The PIC called out: “Okay, flaps twenty.” At approximately 420 m beyond the runway threshold the airplane touched down with the left main landing gear and 132 kt (KIAS). As the B 777 flew above the runway threshold 08R, the BAE 146-RJ85 was in front of the localizer antenna and interfered with the localizer signal. The PIC decided to conduct an automatic approach and autoland.Ī BAE 146-RJ85 taxied along taxiway B4 to runway 08R as the B 777 was about 2.9 NM ahead of the runway threshold 08R and 3.4 NM behind the BAE 146-RJ85 when it received take-off clearance.Īs the B 777 was about 50 ft above the runway in the flare phase the airplane began to slowly bank left up to 3.5°. Based on the latest weather information at Munich, visibility 2,000 m, cloud base 300 ft, the Pilot in Command (PIC) decided to assume the role of PF, as the SOPs (FCOM/NORMAL PROCEDURES/OPERATION) of the operator required, and the co-pilot became Pilot Monitoring (PM). …the co-pilot was initially Pilot Flying (PF) during the flight Manchester – Munich.
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In their safety investigation report, published 85 months after the occurrence, German safety investigation body, the BFU, explain that: B777-312ER 9V-SWQ of Singapore Airlines at Munich (Credit: Police via BFU)