Iran Aseman Airlines Flight 6895

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Iran Aseman Airlines Flight 6895
Itek Air Boeing 737-200 Naumenko.jpg
EX-009, the Boeing 737 involved, photographed four days before the accident
Accident
Date24 August 2008 (2008-08-24)
Summary Controlled flight into terrain during approach due to pilot error [1]
Site Manas International Airport, Bishkek, Kyrgyzstan
43°4′42.2″N74°21′47.5″E / 43.078389°N 74.363194°E / 43.078389; 74.363194
Aircraft
Aircraft type Boeing 737-219 Advanced
Operator Itek Air on behalf of Iran Aseman Airlines [2]
IATA flight No.EP6895
ICAO flight No.IRC6895
Registration EX-009
Flight origin Manas International Airport, Bishkek, Kyrgyzstan
Destination Tehran Imam Khomeini International Airport, Tehran, Iran
Occupants90
Passengers85
Crew5
Fatalities65
Injuries18
Survivors25

Iran Aseman Airlines Flight 6895, was a Boeing 737-200, registered as EX-009, operating a charter flight operated by Itek Air on behalf of Iran Aseman Airlines which crashed on 24 August 2008 (at 20:44 local time) near Manas International Airport in Kyrgyzstan while en route to Imam Khomeini International Airport, [3] [4] [5] Tehran, Iran. It crashed while returning to the airport of origin after experiencing technical difficulties. [2]

Contents

Accident

The aft section seen from the back Iran Aseman Airlines Flight 6895 wreckage.jpg
The aft section seen from the back
The same section seen from the front Iran Aseman Airlines Flight 6895 wreckage2.jpg
The same section seen from the front

Seven minutes after takeoff, the crew requested a return to Manas airport due to a "technical reason", when they saw an indication that one of the doors was not properly locked and the cabin was not pressurized as expected.

The ATC asked the crew whether they are going to perform a visual approach, and the crew confirmed they are requesting a visual approach.

Realizing that the speed and altitude was too high for landing, the pilot decided to execute a left 360 degree turn when they were 6 kilometres (3.7 mi) away from the airport.

While executing this turn, the pilot failed to monitor altitude and vertical speed and inadvertently descended, being unable to see the ground at night. The aircraft struck ground with its left wing and crashed. [2]

The United States Air Force sent ambulances and fire apparatus with firefighters and medical personnel from its base at the airport in response to a request for assistance. [6]

There were 90 people on board (85 passengers and 5 crew) of whom 65 died. [2] This makes it the deadliest aircraft accident to ever occur in Kyrgyzstan. [7] A total of 25 are reported to have survived. [8] The victims included ten members of a Bishkek high school sports team, Kyrgyzstan National U18 Basketball Team. [8]

Investigation

The Interstate Aviation Committee (MAK) attempted to retrieve data from the flight-data and cockpit voice-recorders, which were badly damaged in the fire which destroyed most of the aircraft. While disassembling the casing, both the mechanisms of the tape recorder and the tape media in the voice recorder were found in damaged condition, but the MAK attempted to read the data from the damaged media. The 320 mm (12.6 in) of the FDR tape was damaged by fire. This resulted in a 13 seconds of missing data. The recorded audio on the CVR was of a prior flight (Flight 632). It was then determined that the CVR was not working properly on flight 6895. [9]

The MAK has released its final report. [1] According to the report, the forward left cabin door was not closed completely, most likely due to a jammed seal. The MAK stated that this did not contribute to the accident. It further stated that lack of pressurization did not require an urgent landing using a visual approach, and therefore pilots should have used an instrument approach.

During the visual approach, the crew realized they were too fast and too high to land, and therefore decided to make a 360 degree orbit to reduce their speed and altitude before landing. The decision to make the turn was made at 3.3 nautical miles (3.8 mi; 6.1 km) away from the airport reference point.

While executing that turn, the pilot flying descended below the minimum maneuvering altitude, failed to maintain visual contact with the runway, failed to properly monitor altitude and ignored automated warnings about terrain proximity (TAWS).

The aircraft was in a 10 degree left turn, with landing gear down, flaps 15 and speed at 160 knots (300 km/h; 180 mph) when it impacted ground.

Conclusions

The MAK concluded that, despite holding proper licenses, "the analysis of the crew’s actual actions during the approach, their explanations and enquiries suggests that the crew was not properly trained for visual approaches".

The MAK also concluded that the aircraft was "reacting as expected to control inputs" and "the airframe, aircraft systems and engines as well as the avionics [...] were operative until the impact, except the cabin not pressurizing and the [cockpit voice recorder]".

MAK concluded that the cause of the crash was the crew allowing the altitude reduction of the aircraft at night to a height below the minimum height during a visual approach for an emergency landing at the airport of departure due to depressurization caused by a failed left front door seal, which led to the collision of the aircraft with the ground, the destruction of the aircraft structure followed by fire and death.

According to the report, the combination of the following factors contributed to the accident: [10]

Pilots

The captain and the first officer were sentenced to 5 years 2 months and 5 years respectively [12] in a penal colony. [13]

As of August 2011, both pilots were reported to be released. [14]

Aircraft information

The crashed plane first flew on 16 June 1980 and was delivered on 1 July of the same year to Air New Zealand as ZK-NAS. In 1995, it was sold to Copa Airlines, and in 2003 was again sold to Phoenix Aviation. In 2005, Phoenix Aviation was rebranded as AVE.com, and in April 2006, it changed hands to Itek Air. [15]

Itek Air, along with all air carriers certified by the authorities with responsibility for regulatory oversight of Kyrgyzstan, is included in a European Union list of banned airlines for safety concerns and is therefore not permitted to fly over the territory of the EU. In May 2008, EX-009 passed a full technical inspection. [16]

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References

  1. 1 2 "Archived copy" (PDF). Archived from the original (PDF) on 20 May 2009. Retrieved 14 May 2009.{{cite web}}: CS1 maint: archived copy as title (link)
  2. 1 2 3 4 "ASN Aseman Airlines Flights 6875". 24 August 2008. Retrieved 24 August 2008.
  3. ↑ تعداد مسافران ايراني هواپيماي سانحه ديده قرقيزي 52 نفر اعلام شد (in Persian). IRNA. 25 August 2008. Archived from the original on 28 August 2008. Retrieved 26 August 2008.
  4. ↑ شهروندان ایران در سانحه هوایی قرقیزستان (in Persian). BBC Persian. 25 August 2008. Retrieved 27 August 2008.
  5. ↑ اخبار سوانح هوانوردی (in Persian). asemansafety.ir. Archived from the original on 29 August 2008. Retrieved 27 August 2008.
  6. ↑ Namatbayeva, Tolkun (25 August 2008). "At least 68 dead in Bishkek, Kyrgyzstan 737 air crash". Agence France-Presse via Herald Sun. Archived from the original on 1 September 2008. Retrieved 31 August 2008.
  7. ↑ "ASN Aviation Safety Database". Aviation Safety Network. Retrieved 17 January 2017.
  8. 1 2 Saralayeva, Leila (25 August 2008). "68 die, 22 survive airliner crash in Kyrgyzstan". Archived from the original on 30 August 2008. Retrieved 25 August 2008.
  9. ↑ "INTERSTATE AVIATION COMMITTEE COMMISSION FOR THE INVESTIGATION OF AVIATION ACCIDENTS FINAL REPORT ON RESULTS OF AVIATION ACCIDENT INVESTIGATION" (PDF) (in Russian). Retrieved 22 September 2021. As a result of the examination of the parametric recorder FDR 980-4100 GQUS it was found that a 320mm section of the carrier (magnetic tape) was exposed to high temperature. The information on this section cannot be restored. cannot be recovered. Based on the fact that the tape speed is 12.2 mm / sec, and given the location of the magnetic heads, there is no record of the last part of the flight. about 13 seconds is missing. Recorded audio information corresponds to the flight Moscow-Bishkek (flight IRC 632). It is impossible to establish the date of the flight. Information about of flight B737-200 EX-009 on 24.08.2008 is missing. This testifies to the fact that the CVR recorder in flight on 24.08.2008 was not operational.
  10. ↑ "Archived copy" (PDF). Archived from the original (PDF) on 27 May 2015. Retrieved 17 May 2016.{{cite web}}: CS1 maint: archived copy as title (link)
  11. ↑ https://www.cao.ir/web/accidents/reports?p_p_id=NetFormGetFile_WAR_NetForm&p_p_lifecycle=2&p_p_resource_id=getFile&_NetFormGetFile_WAR_NetForm_file=VFBPbHRheURmQ3Zld3NocDVnYVo1SjVCQXZKSzl2RGtZVlBDNnVFV0d2d1g0YlhMb2VKRGtab0kvM000SDgxVVh5MFF4N0IxUllrMQpta3l6VTlIQS93PT0=.pdf Archived 1 December 2021 at the Wayback Machine [ bare URL PDF ]
  12. ↑ "Крушение "Боинга-737" — 9 лет спустя после трагедии". kg.akipress.org.
  13. ↑ "News Channel - Homepage - flightglobal.com" . Retrieved 19 January 2017.
  14. ↑ "Осужденные пилоты разбившегося в 2008 году самолета находятся на свободе". knews.kgdate=24 August 2011. 24 August 2011.
  15. ↑ "EX-009 Itek Air Boeing 737-219(A) - cn 22088 / ln 676 - Planespotters.net". Planespotters.net. Archived from the original on 30 August 2008. Retrieved 25 August 2008.
  16. ↑ На борту упавшего в Киргизии "Боинга" находился 51 иностранец (in Russian). Lenta.Ru. 24 August 2008. Retrieved 25 August 2008.
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