Narrative:
A Cessna 550B Citation Bravo corporate jet, registered OK-ACH, was destroyed in an accident in the area of the Großer Zschirnstein Mountain. Both pilots were killed.
Flight TIE039C departed Prague-Ruzyne International Airport (PRG) at 20:08 on an IFR flight to Karlstad Airport (KSD), Sweden. The copilot was Pilot Flying.
At 20:14, while the airplane was climbing to cruising altitude, the copilot asked the captain if she had ever flown a roll at night. Meanwhile, the air traffic controller at Prague cleared the flight to climb to FL260.
The flightcrew continued their conversation about performing a roll with Citation Bravo jets. At 20:17 the Pilot Flying rolled the 30° to the left and immediately 20° to the right. Prague ATC then instructed the flight to contact Munich ATC. Contact was established and clearance was given to climb from FL260 to FL330. This was confirmed by the crew.
At 20:18 the captain asked the copilot if their altitude was high enough to perform a roll. The copilot confirmed that the altitude was sufficient.
At 20:19 the flight levelled off at FL270. Five seconds later the nose pitched up to 14° and a roll to the right was initiated. Within four seconds the airplane was flying upside down. It rolled a further 90° in the next four seconds. Meanwhile the heading began to change and the nose dropped in an almost vertical dive of -85°.
The computed airspeed increased from about 240 knots at the initiation of the roll to 380 knots during the descent.
The flight crew were not able to recover and the airplane impacted a forest.
CAUSES (translated from German):
The accident is due to the fact that:
- The crew attempted to perform maneuvers (roll) that are not planned for in commercial aviation.
- The crew lost spatial orientation and subsequently the skill for a controlled recovery from the attained attitude.
The following factors have contributed:
- The pilots were not trained in aerobatics.
- Night-time conditions existed, thereby lacking visual references.
- The personal relationship between two pilots led to a lack of professional behavior while working together in the cockpit.
- The aircraft was not designed or approved for aerobatics.
Loss of situational awareness
accident date: 14-02-2010
type: Cessna 550B Citation Bravo
registration: OK-ACH
accident date: 14-02-2010
type: Cessna 550B Citation Bravo
registration: OK-ACH
| Status: | Accident investigation report completed and information captured |
| Date: | Sunday 14 February 2010 |
| Time: | 20:20 |
| Type: |  Cessna 550B Citation Bravo |
| Operator: | Time Air |
| Registration: | OK-ACH |
| MSN: | 550-1111 |
| First flight: | 2005 |
| Total airframe hrs: | 1830 |
| Cycles: | 1686 |
| Engines: | 2 Pratt & Whitney Canada PW530A |
| Crew: | Fatalities: 2 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | 4,5 km (2.8 mls) SW of Reinhardtsdorf-Schöna ( Germany)
|
| Phase: | En route (ENR) |
| Nature: | Ferry/positioning |
| Departure airport: | Praha-Ruzyne International Airport (PRG/LKPR), Czech Republic |
| Karlstad Airport (KSD/ESOK), Sweden | |
| Flightnumber: | 039C |
A Cessna 550B Citation Bravo corporate jet, registered OK-ACH, was destroyed in an accident in the area of the Großer Zschirnstein Mountain. Both pilots were killed.
Flight TIE039C departed Prague-Ruzyne International Airport (PRG) at 20:08 on an IFR flight to Karlstad Airport (KSD), Sweden. The copilot was Pilot Flying.
At 20:14, while the airplane was climbing to cruising altitude, the copilot asked the captain if she had ever flown a roll at night. Meanwhile, the air traffic controller at Prague cleared the flight to climb to FL260.
The flightcrew continued their conversation about performing a roll with Citation Bravo jets. At 20:17 the Pilot Flying rolled the 30° to the left and immediately 20° to the right. Prague ATC then instructed the flight to contact Munich ATC. Contact was established and clearance was given to climb from FL260 to FL330. This was confirmed by the crew.
At 20:18 the captain asked the copilot if their altitude was high enough to perform a roll. The copilot confirmed that the altitude was sufficient.
At 20:19 the flight levelled off at FL270. Five seconds later the nose pitched up to 14° and a roll to the right was initiated. Within four seconds the airplane was flying upside down. It rolled a further 90° in the next four seconds. Meanwhile the heading began to change and the nose dropped in an almost vertical dive of -85°.
The computed airspeed increased from about 240 knots at the initiation of the roll to 380 knots during the descent.
The flight crew were not able to recover and the airplane impacted a forest.
Probable Cause:
CAUSES (translated from German):
The accident is due to the fact that:
- The crew attempted to perform maneuvers (roll) that are not planned for in commercial aviation.
- The crew lost spatial orientation and subsequently the skill for a controlled recovery from the attained attitude.
The following factors have contributed:
- The pilots were not trained in aerobatics.
- Night-time conditions existed, thereby lacking visual references.
- The personal relationship between two pilots led to a lack of professional behavior while working together in the cockpit.
- The aircraft was not designed or approved for aerobatics.
Accident investigation:
 |
|
Classification:
Non-adherence to procedures Loss of situational awareness
Follow-up / safety actions
BFU issued 2 Safety Recommendations
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Photos
accident date: 14-02-2010
type: Cessna 550B Citation Bravo
registration: OK-ACH
accident date: 14-02-2010
type: Cessna 550B Citation Bravo
registration: OK-ACH
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Praha-Ruzyne International Airport to Karlstad Airport as the crow flies is 1033 km (646 miles).
Accident location: Approximate; accuracy within a few kilometers.
Distance from Praha-Ruzyne International Airport to Karlstad Airport as the crow flies is 1033 km (646 miles).
Accident location: Approximate; accuracy within a few kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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