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This is what a blade fracture inside a jet engine can do, shaking an aircraft like a washing machine. In 2017, an AirAsia X Airbus A330-300 suffered a Rolls-Royce Trent 700 fan blade failure caused by metal fatigue. The fractured blade was contained, but the engine sustained severe internal...

467,125 görüntüleme • 2 ay önce •via X (Twitter)

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The name on one of the crew might ring a bell... June 19 1947: Pan Am Flight 121, a Constellation, crash-lands in Mayadine (Syria). 14 of 36 aboard die. In flight, the #1 engine failed due to a mechanical issue. Attempting to divert to an alternate airport, the #2 engine also failed. The crew made a belly landing in the desert, where the aircraft caught fire. Among the survivors was a dead heading 3rd officer named Gene Roddenberry, who would go on to create the iconic science fiction television series “Star Trek”. This was Roddenbery´s 2nd major plane crash, having survived another major accident during his service in the Pacific Theatre, during WW2 Accident description from ASN (One of many period accidents where an engine failure led to a fatal crash. Nowadays, an engine fail is nearly routine and at worst it causes a diversion...) "The Constellation, named "Clipper Eclipse", was cruising at FL185 when the no. 1 prop had to be feathered due to engine problems. The remaining three engines overheated, forcing the crew to reduced power. This resulted in a gradual descent. The crew elected to continue to Istanbul instead of landing at the nearby Habbaniya RAF Station in Iraq. While descending through FL100 a fire broke out in the engine no. 2 nacelle. A rapid descent was started during which the no. 2 engine separated from the wing. With the left wing on fire a belly landing was carried out in the desert. It appeared the no. 1 engine failure was due to a broken exhaust rocker arm on the no.18 cylinder. The no. 2 engine failure was due to a failure of the thrust bearing which in turn resulted in blocking the passage of oil from the propeller feathering motor to the propeller dome. PROBABLE CAUSE: "The Board determines that the probable cause of this accident was a fire which resulted from an attempt to feather the No. 2 propeller after the failure of the No. 2 engine thrust bearing."

Francisco Cunha

56,655 görüntüleme • 2 ay önce

Following the Delta A330-323(N813NW) engine failure after departure from São Paulo (GRU), many are asking: what actually happens if an airliner loses an engine just after takeoff? As passenger in the cabin watching this scenario unfold, the panic is understandable. Seeing flames from an engine is alarming. But this is exactly the kind of scenario pilots are trained for repeatedly in simulators. Modern multi-engine aircraft are designed to fly safely on one engine. In fact, losing one engine is a certification requirement during testing. Here’s what happens: At liftoff, pilots target V2 speed—the minimum safe speed that guarantees the aircraft can continue climbing even with one engine inoperative. If an engine fails: • The MASTER FIRE warning light will illuminate in the cockpit and the fire warning bell will sound, alerting the pilots on the affected engine (they will close the fuel, hydraulic shutoff, and engine bleed air valves, and also discharge the related fire bottle to extinguish the engine fire). Of course, they will be careful NOT TO shut down the wrong engine (this has happened before). • Maximum thrust is applied on the remaining engine. • Rudder input keeps the aircraft straight (countering asymmetric thrust) • The aircraft climbs straight ahead for best performance (turns reduce climb rate unless required) Once above a safe altitude (typically ~1,500 ft / Minimum Flap Retraction Altitude(MFRA): • The aircraft accelerates • Flaps are retracted (“cleaning up”) • Crew assesses the situation and plans a return or diversion Even at very low altitude, the aircraft remains controllable by design. It may not climb aggressively, but it will climb. Bottom line: What looks catastrophic from the cabin is a scenario pilots are highly trained to handle—and aircraft are engineered to withstand. Hope this helps any nervous flyer. Flying is safe, and the chances of this happening have reduced due to lessons learned from previous incidents. And if you ever find yourself in this situation, trust that the pilots will act according to their training—because that’s their job.

Turbine Traveller

42,927 görüntüleme • 5 ay önce

Another ill-fated take-off over V1 (in this case, V2!) June 13 1996: Garuda Indonesia Flight 865, a DC-10, crashes in Fukuoka (Japan) 3 of 275 aboard die. On take-off, the jet had just left the ground when one of the engines failed. Crew opted to reject the maneuver; the aircraft was unable to stop safely and left the runway: landing gear collapsed, and the airplane caught fire. Inquiry noted pilot actions by aborting takeoff above V1, where SOP dictated pilots should have continued takeoff and deal with the engine later. More info below from Aviation Safety Network – Aftermath video is from Aircrashdaily (go give them a follow on YouTube) “The DC-10 accelerated for takeoff. The nose was raised, and at a speed of 158 kts, the first officer called "Rotate". It was 12:07:40. Three seconds later, at a radio altitude of 9 feet, a fan blade of the 1st stage HP turbine from the no. 3 engine separated. The N1 dropped to 23,7% within a few seconds. At 12:07:45, the flight engineer called "Engine failure number one." Takeoff was aborted at about the V2 speed, and the airplane contacted the runway one second later at a vertical acceleration force of 2.1 Gs. The thrust reversers were deployed and ground spoilers were extended. The DC-10 skidded off the runway through a ditch, fence and a road, before coming to a halt 620 m past the runway threshold. Investigation revealed that the turbine blade that failed, had operated for 30913 hours and 6182 cycles. General Electric had advised customers to discard blades after about 6000 cycles. Accident cause Although the Aircraft was well in excess of V1 and the aircraft had already lifted off from the runway, the takeoff was aborted. Consequently, the aircraft departed the end of the runway, came to rest and caught fire. It is estimated that contributing to the rejection of the takeoff under this circumstance was the fact that the CAP's judgement in the event of the engine failure was inadequate."

Francisco Cunha

157,331 görüntüleme • 2 ay önce

Several people have messaged me about the Fire Dept getting dispatched to Columbia Metro shortly after 7pm for an aircraft emergency so here’s the ATC tapes of what happened with a little explainer below. An American Airlines regional carrier (PSA Airlines) operating flight 5108 from Reagan National (Callsign Blue Streak 5108) was on final approach and they received an EICAS message for “inop steering” so they broke off the approach at 7:04pm and went out and held while they worked through the issue. EICAS = Engine-Indicating and Crew-Alerting System (think of this as the check engine light on your car, but a bit more advanced bc it will tell you what the issue is.) At 7:17pm they were done working the issue and advised they were ready to come back to the airport. The airport had emergency equipment standing by just in case there was an issue and at 7:28pm they touched down and rolled off one of the high speed taxiways and originally waited for airport ops to provide a tug to tow them to the gate, but the flight crew was able to use some differential thrust (using thrust from one engine to steer the aircraft) and they were able to safely get to the gate with no further issues. Shortly after 7:30pm airport ops had completed a fod check on runway 11/29 and advised everything was good and to show the runway back open. Fod = foreign object debris. Basically they checked to make sure the aircraft didn’t lose any parts when it landed. In the end it was about a 30 min delay but no one was hurt and everything is all good.

☈ Chris Jackson ☈

30,949 görüntüleme • 2 ay önce