Turkish Airlines Flight 5904
| Turkish Airlines Flight 5904 | |
|---|---|
.jpg) An identical Boeing 737-400 from the company |
|
| Accident summary | |
| Accident type | Loss of control after instrument failure due to icing |
| place | Ceyhan , Adana (Province) , Turkey |
| date | April 7, 1999 |
| Fatalities | 6th |
| Survivors | 0 |
| Injured | 0 |
| Aircraft | |
| Aircraft type | Boeing 737-400 |
| operator | Turkish Airlines |
| Mark | TC-JEP |
| Surname | Trakya |
| Departure airport | Adana Airport |
| Destination airport | Jeddah airport |
| Passengers | 0 |
| crew | 6th |
| Lists of aviation accidents | |
On April 7, 1999, on Turkish Airlines flight 5904 , a Boeing 737-400 crashed near Ceyhan in Adana Province in poor weather conditions eight minutes after taking off from Adana Airport . The Turkish Airlines plane was to be transferred to Jeddah Airport without passengers . All six crew members were killed.
plane
The Boeing 737-4Q8 ( registration number : TC-JEP, c / n : 25378, s / n : 2732) was delivered to Turkish Airlines on June 21, 1995. The two engines of the type CFMI CFM56-3C1 equipped machine had completed its first flight on June 8 1995th
Flight history
The plane landed in Adana at 11:57 p.m. local time with 150 Turkish Hajj pilgrims from Jeddah . With a new crew consisting of two pilots and four flight attendants , the aircraft took off from Adana Airport at 12:36 a.m. local time for a second special flight without passengers to Jeddah to pick up other Turkish pilgrims. Before departure, the pilots had only worked through the checklists superficially and probably forgot to turn on the heating of the pitot tubes .
An air traffic controller at Incirlik Air Base , twelve kilometers east of Adana, informed the crew of severe thunderstorms. After entering the thunderstorm, the plane crashed at 12:44 a.m. local time, just eight minutes after take-off.
Cause of accident
The pilots who made the one-way flight from Jeddah to Adana reported no problems. The course of the accident indicates that at least one pitot tube iced up while climbing and that the pitot static system was therefore transmitting the wrong speed. The incorrect information was presumably not recognized by the pilots, as a result of which the actual speed during the climb probably decreased so much that a stall began.
The investigations carried out by the Turkish Aviation Authority can be summarized as follows:
- the extreme weather conditions likely contributed to the crash ,
- the heating of the pitot static system was not activated during the preparations because the checklist was only incompletely processed,
- the pilots did not recognize the reason for the deviating speed display,
- the pilots have not used any other flight instruments to check the incorrect display or to bring the aircraft back under control,
- the presence of the four flight attendants in the cockpit may have distracted the pilots.
Individual evidence
- ↑ Accident report Boeing 737-400 TC-JEP , Aviation Safety Network (in English), accessed on December 1, 2016.
- ↑ Rzjets.com, Boeing 737-400 TC-JEP , accessed on February 11, 2017
- ^ A b Accident summary: NTSB Identification: DCA99RA053 , accessed on February 11, 2017
- ↑ Webarchive.org: Accident summary of the Civil Aviation Authority (in Turkish) ( Memento of the original from April 15, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed February 11, 2017
