Accident
Last updated: 1 August 2014
Status:Definitief
Datum:zondag 14 februari 2010
Tijd:20:20
Type:Silhouette image of generic C550 model; specific model in this crash may look slightly different
Cessna 550B Citation Bravo
Luchtvaartmaatschappij:Time Air
Registratie: OK-ACH
Constructienummer: 550-1111
Bouwjaar: 2005
Aantal vlieguren:1830
Aantal vluchten:1686
Motoren: 2 Pratt & Whitney Canada PW530A
Bemanning:slachtoffers: 2 / inzittenden: 2
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 2 / inzittenden: 2
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:4,5 km (2.8 mijl) SW of Reinhardtsdorf-Schöna (   Duitsland) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Ferry
Vliegveld van vertrek:Praha-Ruzyne International Airport (PRG/LKPR), Tsjechische Republiek
Vliegveld van aankomst:Karlstad Airport (KSD/ESOK), Zweden
Vluchtnummer: 039C
Beschrijving:
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.

Bronnen:

Official accident investigation report
investigating agency: Bundesstelle für Flugunfalluntersuchung (BFU) - Germany
report status: Final
report number: BFU CX001-10
report released:20-AUG-2013
duration of investigation:1283 days (3 years 6.3 months)
download report: Untersuchungsbericht (BFU CX001-10)

Veiligheidsmaatregelen

BFU issued 2 Safety Recommendations

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Foto's

photo of Cessna 550B Citation Bravo OK-ACH
photo of Cessna 550B Citation Bravo OK-ACH
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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Praha-Ruzyne International Airport en Karlstad Airport bedraagt 1033 km (646 miles).

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