Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Ceyhan Adana
Wednesday, April 7, 1999 21:44 UTC
NTSB Narrative Summary Released at Completion of Accident
On April 7, 1999, Turkish Airlines flight 5904, a Boeing 737-400, registration TC-JEP crashed near Ceyhan, Adana, Turkey, about 8 minutes after takeoff from Adana, Turkey. The flight was a repositioning flight to pick up passengers at Jeddah, Saudi Arabia. The two flightcrew and 4 cabin crew were killed. The airplane was operating in an area of thunderstorms at the time of the accident.
The investigation was conducted by the Directorate General of Civil Aviation - Turkey. An accident report was issued on April 4, 2002.
The accident report contained the following conclusions:
1. The severe weather conditions probably contributed to the cause of the accident.
2. The pitot static anti-ice system was probably not activated during preparations for flight because of missed checklist items.
3. The crew failed to recognize the cause of erratic airspeed indication.
4. The crew failed to use other cockpit indications for control and recovery of the airplane.
5. The presence of cabin crew in the cockpit probably distracted the attention of the cockpit crew.
The DGAC issued recommendations to the FAA concerning solid state flight data recorders and automatic pitot heat systems activation.
The DGAC also issued recommendations to Turkish Airlines concerning cockpit checklist discipline and instrument cross-checking
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 4/7/1999 |
| Event Day of the Week | Wednesday |
| Time of Event | 2144 |
| Event Time Zone | Coordinated Universal Time? Same as GMT |
| Event City | CEYHAN ADANA |
| Event State | -- |
| Event Country | -- |
| Zipcode of the event site | -- |
| Event Date Year | 1999 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2155 Coordinated Universal Time? Same as GMT |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | KQDG |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | 50 |
| Time Zone of the weather observation | UTC |
| Lighting Conditions | Night |
| Lowest Ceiling Height | 3000 |
| Lowest Non-Ceiling Height | 1500 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 5 |
| Air Temperature at event time (in degrees celsius) | 17 |
| Dew Point at event time (in degress fahrenheit) | 15 |
| Wind Direction (degrees magnetic) | 240 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.98 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Heavy |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 6 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 6 |
| Investigating Agency | Foreign |
| NTSB Docket Number (internal use) | 0 |
| NTSB Notification Source | DGAC-Turkey |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jan 27 2005 8:30AM |
| User who most recently changed record | ntsb\Administrator |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | -- |
| NTSB Number | DCA99RA053 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Non-U.S., Commercial |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | No |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Boeing |
| Aircraft Model | 737-400 |
| Aircraft Series Identifier | 737-400 |
| Aircraft Serial Number | 25378 |
| Certified Max Gross Weight | 150000 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | Foreign Reg./Foreign Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 150 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | 11678 |
| ELT Installed | Unknown |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | TURKISH AIR LINES |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | -- |
| Aircraft Owner State | -- |
| Aircraft Owner Country | TU |
| Aircraft Owner Zipcode | -- |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | ISTANBUL |
| Operator State | -- |
| Operator Country | TU |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled |
| Indicates Domestic or International Flight | International |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | LTAF |
| Departure City | ADANA |
| Departure State | -- |
| Departure Country | TU |
| Departure Time | 2144 |
| Departure Time Zone | UTC |
| Destination Same as Local Flt | -- |
| Destination Airport Code | OEJN |
| Destination City | JEDDAH |
| Destination State | -- |
| Destination Country | SA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | No |
| Date of most recent change to record | Aug 21 2003 4:23PM |
| User who most recently changed record | HAUT |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |