Pilot Debrief

CIRRUS DESIGN CORP SR22 near Pittsburg, PA — 2011-01-24

Final reportERA11LA124
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Date
2011-01-24
Location
Pittsburg, PA, USA
Airport
PIT
Aircraft
CIRRUS DESIGN CORP SR22
Registration
N690KY
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Taxi

Probable cause

The pilot’s excessive engine rpm and speed during taxi and subsequent braking, which resulted in a wheel brake fire.

NTSB narrative

According to the pilot, he was given instructions to taxi from the fixed base operator to the runway. After reaching the runway, he initiated the takeoff checklist. The pilot increased the engine rpm per the checklist and the airplane moved forward slightly. According to the pilot, as pressure was applied to the brakes, the right brake "popped" and the right pedal “lost all pressure.” The airplane started a 180 degree turn to the left and the engine was shutdown. Smoke was coming from under the right wing and the tower was alerted. As the pilot and passenger exited the airplane, they observed flames around the base of the wheel pant and the pilot attempted to extinguish the fire unsuccessfully. Data retrieved from the multi-function display revealed that while taxiing, the engine power reached 1,100 to 1,900 rpm and the ground speed was 30 mph. Review of the airplane’s pilot operating handbook revealed that the maximum recommended continuous engine power for taxiing is 1,000 rpm. If the engine power is exceeded and proper braking procedures are not observed during taxi, wheel brake damage or fire could occur. Portions of the right brake assembly were either heavily fire damaged or destroyed. Examination of the left brake assembly revealed no evidence of a mechanical malfunction.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Pilot could have reduced engine power below 1000 rpm during taxi to prevent brake fire.

NTSB coding

Evidence available

  • Photos
  • 14 docket documents
View NTSB final reportView NTSB docket

Docket documents14

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