<P> On June 27, 2016, a 777 - 300ER suffered an oil leak in the right engine while en route from Singapore to Milan as Singapore Airlines Flight 368 . It was diverted back to Singapore Changi Airport for an emergency landing . The right engine and wing caught fire during the landing roll and sustained serious fire damage . There were no injuries . </P> <P> On August 3, 2016, the sixth hull - loss of the type occurred, when a 777 - 300 crashed while landing and caught fire at Dubai Airport at the end of its flight as Emirates Flight 521 . The preliminary investigation indicated that the aircraft was attempting a landing during active wind shear conditions . The pilots initiated a go - around procedure shortly after the main wheels touched - down onto the runway, however the aircraft settled back onto the ground apparently due to late throttle application . As the undercarriage was in the process of being retracted, the aircraft landed on its rear underbody and engine nacelles, resulting in the separation of one engine, loss of control and subsequent crash . There were no passenger casualties of the 300 people on board, however one airport fireman was killed fighting the fire . The aircraft's fuselage and right wing were badly damaged by the fire . </P> <Table> Boeing 777 specifications <Tr> <Th> Model </Th> <Th> 777 - 200 </Th> <Th> 777 - 200ER </Th> <Th> 777 - 200LR </Th> <Th> 777F </Th> <Th> 777 - 300 </Th> <Th> 777 - 300ER </Th> </Tr> <Tr> <Th> Cockpit crew </Th> <Td_colspan="6"> Two </Td> </Tr> <Tr> <Th> 3 - class </Th> <Td> 305 (24F / 54J / 227Y) </Td> <Td_colspan="2"> 301 (16F / 58J / 227Y) </Td> <Td> </Td> <Td> 368 (30F / 84J / 254Y) </Td> <Td> 365 (22F / 70J / 273Y) </Td> </Tr> <Tr> <Th> 2 - class / capacity </Th> <Td_colspan="2"> 313 </Td> <Td> 317 </Td> <Td> 224,900 lb / 102,010 kg </Td> <Td_colspan="2"> 396 </Td> </Tr> <Tr> <Th> Exit limit </Th> <Td_colspan="3"> 440 </Td> <Td> 11 </Td> <Td_colspan="2"> 550 </Td> </Tr> <Tr> <Th> Length </Th> <Td_colspan="4"> 209 ft 1 in / 63.73 m </Td> <Td_colspan="2"> 242 ft 4 in / 73.86 m </Td> </Tr> <Tr> <Th> Wingspan </Th> <Td_colspan="2"> 199 ft 11 in / 60.93 m </Td> <Td_colspan="2"> 212 ft 7 in / 64.80 m </Td> <Td> 199 ft 11 in / 60.93 m </Td> <Td> 212 ft 7 in / 64.80 m </Td> </Tr> <Tr> <Th> Wing sweep </Th> <Td_colspan="6"> 31.6 ° </Td> </Tr> <Tr> <Th> Wing area </Th> <Td_colspan="2"> 4,605 sq ft (427.8 m) </Td> <Td_colspan="2"> 4,702 sq ft (436.8 m) </Td> <Td> 4,605 sq ft (427.8 m) </Td> <Td> 4,702 sq ft (436.8 m) </Td> </Tr> <Tr> <Th> Aspect ratio </Th> <Td_colspan="2"> 8.68 </Td> <Td_colspan="2"> 9.04 </Td> <Td> 8.68 </Td> <Td> 9.04 </Td> </Tr> <Tr> <Th> Tail height </Th> <Td_colspan="2"> 60 ft 9 in / 18.5 m </Td> <Td_colspan="2"> 61 ft 1 in / 18.6 m </Td> <Td_colspan="2"> 60 ft 8 in / 18.5 m </Td> </Tr> <Tr> <Th> Cabin width </Th> <Td_colspan="6"> 230 in / 5.84 m </Td> </Tr> <Tr> <Th> Seat width </Th> <Td_colspan="6"> 18.5 in / 47 cm at 9 abreast, 17 in / 43 cm at 10 abreast </Td> </Tr> <Tr> <Th> Fuselage width </Th> <Td_colspan="6"> 20 ft 4 in / 6.20 m </Td> </Tr> <Tr> <Th> Maximum cargo capacity </Th> <Td_colspan="3"> 5,330 ft3 / 150.9 m3 </Td> <Td> 23,051 ft3 / 652.7 m3 </Td> <Td_colspan="2"> 7,120 ft3 / 201.6 m3 </Td> </Tr> <Tr> <Th> Maximum takeoff weight (MTOW) </Th> <Td> 545,000 lb / 247,200 kg </Td> <Td> 656,000 lb / 297,550 kg </Td> <Td> 766,000 lb / 347,452 kg </Td> <Td> 766,800 lb / 347,815 kg </Td> <Td> 660,000 lb / 299,370 kg </Td> <Td> 775,000 lb / 351,533 kg </Td> </Tr> <Tr> <Th> Max . landing weight </Th> <Td> 445,000 lb / 201,840 kg </Td> <Td> 470,000 lb / 213,180 kg </Td> <Td> 492,000 lb / 223,168 kg </Td> <Td> 575,000 lb / 260,816 kg </Td> <Td> 524,000 lb / 237,680 kg </Td> <Td> 554,000 lb / 251,290 kg </Td> </Tr> <Tr> <Th> Operating empty weight </Th> <Td> 299,550 lb / 135,850 kg </Td> <Td> 304,500 lb / 138,100 kg </Td> <Td> 320,000 lb / 145,150 kg </Td> <Td> 318,300 lb / 144,379 kg </Td> <Td> 353,800 lb / 160,530 kg </Td> <Td> 370,000 lb / 167,829 kg </Td> </Tr> <Tr> <Th> Fuel capacity </Th> <Td> 31,000 US gal / 117,340 L / 207,700 lb / 94,240 kg </Td> <Td> 45,220 US gal / 171,171 L / 302,270 lb / 137,460 kg </Td> <Td_colspan="2"> 47,890 US gal / 181,283 L / 320,863 lb / 145,538 kg </Td> <Td> 45,220 US gal / 171,171 L / 302,270 lb / 137,460 kg </Td> <Td> 47,890 US gal / 181,283 L / 320,863 lb / 145,538 kg </Td> </Tr> <Tr> <Th> Service ceiling </Th> <Td_colspan="6"> 43,100 ft (13,100 m) </Td> </Tr> <Tr> <Th> Cruise speed </Th> <Td_colspan="6"> Mach 0.84 (892 km / h; 554 mph) </Td> </Tr> <Tr> <Th> Max . speed </Th> <Td_colspan="6"> Mach 0.89 (945 km / h; 587 mph) </Td> </Tr> <Tr> <Th> Range </Th> <Td> 5,240 nmi / 9,700 km </Td> <Td> 7,065 nmi / 13,080 km </Td> <Td> 8,555 nmi / 15,840 km </Td> <Td> 4,970 nmi / 9,200 km </Td> <Td> 6,030 nmi / 11,165 km </Td> <Td> 7,370 nmi / 13,650 km </Td> </Tr> <Tr> <Th> Takeoff distance </Th> <Td> 8,000 ft 2,440 m </Td> <Td> 11,100 ft 3,380 m </Td> <Td> 9,200 ft 2,800 m </Td> <Td> 9,300 ft 2,830 m </Td> <Td> 10,600 ft 3,230 m </Td> <Td> 10,000 ft 3,050 m </Td> </Tr> <Tr> <Th> Turbofan (× 2) </Th> <Td> PW 4077 RR 877 GE90 - 77B </Td> <Td> PW 4090 RR 895 GE90 - 94B </Td> <Td_colspan="2"> GE90 - 110B1 GE90 - 115B1 </Td> <Td> PW 4098 RR 892 GE90 - 92B / - 94B </Td> <Td> GE90 - 115B1 </Td> </Tr> <Tr> <Th> Max thrust (× 2) </Th> <Td> 77,200 lbf (343 kN) </Td> <Td> 93,700 lbf (417 kN) </Td> <Td_colspan="2"> 115,300 lbf (513 kN) </Td> <Td> 98,000 lbf (440 kN) </Td> <Td> 115,300 lbf (513 kN) </Td> </Tr> </Table> <Tr> <Th> Model </Th> <Th> 777 - 200 </Th> <Th> 777 - 200ER </Th> <Th> 777 - 200LR </Th> <Th> 777F </Th> <Th> 777 - 300 </Th> <Th> 777 - 300ER </Th> </Tr>

What is the speed of a boeing 777