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What happened

On 25 September 2015, a Cessna 550 aircraft (Citation Bravo), registered VH-FGK, taxied at Lismore Airport for a private flight to Baryulgil, New South Wales. The flight crew consisted of a captain and copilot, who were the only occupants of the aircraft.

The flight crew did not detect anything abnormal during the taxi and take-off roll, until the captain attempted to rotate the aircraft to the take-off pitch attitude. When the aircraft had achieved the required rotate speed, the captain applied the normal backpressure on the control column to achieve a standard rate of rotation, and the aircraft did not rotate. The captain then applied full backpressure and reported that the controls felt very heavy. Neither the captain nor the copilot detected any change in the aircraft’s pitch attitude or any indication of pitch-up on the attitude direction indicator.

The captain rejected the take-off, applied full braking and reverse thrust, but the aircraft overran the runway. The nose landing gear detached from the aircraft about 50 m beyond the end of the sealed runway, and the aircraft came to rest in long grass and mud. The aircraft sustained substantial damage, and the captain and copilot were uninjured.

What the ATSB found

The aircraft did not accelerate normally as the acceleration was retarded by drag associated with rolling friction. This was indicative of partial brake pressure remaining during the take-off run. The partial brake pressure was possibly due to the parking brake being selected on at the holding point with enough pressure to retard aircraft acceleration during the take-off, but not sufficient to prevent the aircraft reaching rotate speed.

Furthermore, the nose-down moment generated by the partial brake pressure probably prevented the aircraft rotating sufficiently to become airborne, despite normal nose-up elevator deflection.

Heat in the brakes due to partial pressure during the take-off run may have reduced their effectiveness when the captain rejected the take-off, contributing to the runway overrun.

What has been done as a result

The Australian Transport Safety Bureau issued a safety recommendation that Textron Aviation (Cessna) take safety action to address the fact that Citation aircraft do not have an annunciator light to show that the parking brake is engaged and the Cessna 'before take-off' checklist does not include a check to ensure the parking brake is disengaged.

Safety message

For pilots, this incident highlights the importance of attention to the configuration of the aircraft and cockpit settings at all stages of flight, but particularly during take-off. For manufacturers, this incident highlights the importance of systems that bring an irregular or abnormal configuration or cockpit setting to the attention of the crew, especially when that configuration has the potential to adversely affect aircraft performance or control.

Accident site of Cessna 550 aircraft (Citation Bravo), registered VH-FGK, at Lismore Airport

Accident site. Source: Aircraft owner
Source: Aircraft operator

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The occurrence

Context

Safety analysis

Findings

Safety issues and actions

Sources and submissions

Appendices

 
 
 

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Safety issue

AO-2015-114-SI-01 -  

No cockpit annunciation or checklist item for parking brake status

The Citation aircraft did not have an annunciator light to show that the parking brake is engaged, and the manufacturer’s before take-off checklist did not include a check to ensure the parking brake is disengaged.

Safety issue details
Issue number:AO-2015-114-SI-01
Who it affects:All owners and operators of Cessna Citation aircraft
Status:Safety action pending

 
General details
Date: 25 September 2015 Investigation status: Completed 
Time: 13:00 EST Investigation type: Occurrence Investigation 
Location   (show map):Lismore Airport Occurrence type:Control - Other 
State: New South Wales Occurrence class: Operational 
Release date: 25 July 2016 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 550 
Aircraft registration: VH-FGK 
Serial number: 550-0852 
Type of operation: Private 
Sector: Jet 
Damage to aircraft: Substantial 
Departure point:Lismore, NSW
Destination:Baryulgil, NSW
 
 
 
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Last update 17 October 2017