Qantas Flight 30 (QF30, QFA30) is Qantas Boeing 747-438, construction number 25067, registered in Australia as VH-OJK. QF30 is a scheduled flight from London Heathrow Airport to Melbourne Airport with a stopover at Hong Kong International Airport on July 25, 2008. The flight was interrupted when an oxygen tank exploded causing the plane to break right in front of the right-wing roots. There were no injuries and the plane made an emergency landing to a height of about 10,000 feet and eventually landed an emergency at Ninoy Aquino International Airport, Metro Manila, Philippines.
Video Qantas Flight 30
In-plane crash
The flight left Hong Kong on July 25, 2008 shortly after 9.00 HKT (0100 UTC). At 10.17 HKT (0217 UTC), passengers and crew heard a loud bang; de-pressured cabin and hole in the passenger deck floor appeared, as well as a hole in the outer wall of the cargo deck. During an emergency, the floor of the plane and the ceiling collapsed. Passengers reported that, despite the noise and spread of oxygen masks, there was little panic. The pilot made an emergency landing of 29,000 feet to ensure adequate oxygen supply for passengers, reaching 10,000 feet at 10:24 HKT (02:24 UTC).
After the accident, many passengers said that some oxygen masks did not spread, while others suffered elastic damage. As a result, it was reported that one passenger hit the ceiling panel to try to gain access to the mask. It was stated that this passenger lacked oxygen until the plane was lowered to a breathable height. The Australian Transportation Security Bureau interviewed passengers who reported problems with oxygen masks as part of their investigation.
The hole in the fuselage - roughly in inverted T shape - up to 2.01 m wide and 1.52 m high, is located on the right side of the fuselage, below the floor level of the cabin and directly to the front of the wing. Fairing the wing-fuselage is lost, revealing some palletised cargo in the hold. However, the freight forwarder reports that all items in the manifest have been accounted for. In addition to some items located near the cylinder and the resulting hole, no cargo or other luggage on the faulty aircraft.
The airline, in a news release, said there were no injury reports. Some passengers are reported to show signs of nausea as they exit the plane.
Maps Qantas Flight 30
Investigation
The Australian Transportation Security Bureau led the investigation, sending 4 investigators to Manila to conduct a detailed inspection of the aircraft, with Qantas, the Federal Aviation Administration, Boeing, the Australian Civil Aviation Safety Authority and the Civil Aviation Authority of the Philippines.
Immediately after the accident, the ATSB announced that an air safety investigator found that the oxygen cylinder located in the blast area had not been taken into account, but it was premature to say that the oxygen cylinder could be the cause of the air burst in QF30. Regardless, the Civil Aviation Safety Authority ordered Qantas to check all the oxygen cylinders and brackets holding the cylinder on its Boeing 747 fleet. Valve valves and mounting found, but not bottles, number four of thirteen installed in the bank. A senior investigator, Neville Blyth, reported that the cylinder valve was found inside the cabin, after pressing a hole "at least twenty centimeters in diameter" through the cabin floor.
Blyth said that the flight recorder should be analyzed in the Canberra laboratory from ATSB. However, since the plane remained in the air and operated throughout the incident, the cockpit voice recorder contained no record of the initial event itself; the two-hour memory has been overwritten with recordings that occurred after this event, during the switch and landing. The twenty-four hour flight recorder does contain data covering all incidents.
On August 29, ATSB provided an update confirming further aspects of the preliminary investigation. They stated that this initial investigation had found that the plane took about five and a half minutes to descend from the decompression event at 29,000 feet to a height of 10,000 feet and that it appeared part of the oxygen cylinder and the valve had entered the passenger. cabin, then hit the handle of the right door number 2, turn it into parts. ATSB notes that there is no risk of doors being opened by this movement, with a door system performing as designed. The three aircraft landing systems and anti-skid braking systems are not available for landing; the pilot then landed the plane without using the system. Most of the oxygen masks were placed in the incident, with 426 of the 476 deployed powered by 346 passengers, pulling them down to activate the oxygen flow.
Initial findings
The cause of the accident has been determined as an explosive oxygen tank in the cargo area, according to preliminary findings of the Australian Transportation Safety Bureau:
"After clearing luggage and cargo from the front plane, it is evident that a single passenger oxygen cylinder (number 4 of a seven-cylinder bank along the right side of the cargo hold) has experienced a sudden failure and a powerful blackout of the pressurized contents into the plane flying, breaking the fuselage around the wings of the fuselage-cylinder fairing had been pushed upward by the power of the discharge, piercing the cabin floor and entering the cabin adjacent to the second main cabin door.The cylinder then impacted the door frames, door handles and overhead panels, before falling to the floor of the cabin and out of the plane through a broken plane. "
Other security issues
The oxygen mask that was deployed after the explosion failed to function properly. Some passengers were forced to share a mask when the Qantas Boeing 747 was having problems, while others panicked when they failed to open. The FAA recently issued a directive about problem solving with this mask and several other Boeing commercial aircraft models.
ATSB issues two Safety Advisor Notices , advises the organization responsible for reviewing personnel procedures, equipment, techniques and qualifications for maintenance, inspection and handling of the air oxygen tube.
ATSB end report
Just over two years after the incident, the final report of the show was released on November 22, 2010.
From a summary released by ATSB:
"On July 25, 2008, a Boeing Company 747-438 aircraft carrying 369 passengers and crew rapidly decreased the pressure after the forced removal of one of the aircraft's emergency oxygen cylinders on the front cargo.The plane sailed at 29,000 feet and 55 minutes into the flight between Hong Kong and Melbourne. "
"After an emergency landing up to 10,000 feet, the crew diverted the aircraft to Ninoy Aquino International Airport, Manila, Philippines, where the plane landed safely and no passengers or crew suffered physical injuries."
"A team of investigators, led by the Australian Transportation Safety Bureau (ATSB) and including representatives of the US National Transportation Safety Agency (NTSB), the US Federal Aviation Authority (FAA), Boeing and the Philippine Civil Aviation Authority (CAAP) In Manila From the job, it was evident that the oxygen cylinder (number-4 in the bank along the right side of the forward cargo hold) had exploded in such a way as to crash the plane adjacent the wall and pushed upward, piercing the cabin floor and impacting the frame and door handle R2 and upper cabin panels.No parts of the cylinder (other than valve assembly) are recovered and it is considered missing from the aircraft during depressurisation. "
"ATSB undertook a close and detailed study of this type of cylinder, including an overview of all possible failure scenarios and other cylinder engineering evaluations of the same batch of production and type in general.It is clear that the cylinder has failed by breaking through, or around the base - pressurized to project it vertically upward. Although it is hypothesized that the cylinder may contain defects or defects, or have been damaged in a way that causes failure, no evidence was found to support such findings.Also there is no evidence found to suggest a cylinder of a batch of production subject, or type in general, in any way vulnerable to premature failure. "
Repair
Structural improvements were made in Manila by Boeing. It was transported to Avalon on November 10, 2008. The first captain and officer were part of the ferry crew. The only work still to be done at the time was the replacement of carpet and seat cover. On November 18, 2008, with all the work completed, the plane broke down again when another Qantas Boeing 747 collided with it on Avalon.
The aircraft finally resumed operations on January 15, 2009 but retired from service at the end of 2009 and sold.
Qantas still uses flight numbers now coming from Hong Kong, which have been dropped from London destinations.
IFALPA
In early 2010, the International Federation of Air Line Pilots Association awarded Polaris to the three pilots involved in the incident.
References
https://flightaware.com/live/flight/QFA9
External links
- Podcast Flights (April 17, 2011). "Audio Interview with Captain John Bartels & ATSB (QF30)". FlightPodcast.com . Retrieved April 24 2011 .
- James Wray (July 25, 2008). "In pictures of emergency landing of Qantas Philippine aircraft". MonsterAndCritics.com . Retrieved July 25 2008 .
Source of the article : Wikipedia
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