<< >> NASA ASRS Report 860201, November 2009

PA31 instructor pilot reports left brake application by the pilot under training during takeoff roll caused a runway excursion and nose gear collapse.

Attributes
ACN	860201
Time
Date	200911
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-31 Navajo/Chieftan/Mojave/T1040
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	None
Component
Aircraft Component	Normal Brake System
Person 1
Function	Instructor
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 170 Flight Crew Total 34700 Flight Crew Type 38
Events
Anomaly	Ground Event / Encounter Ground Strike - Aircraft Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway

Narrative:

On takeoff the aircraft started to drift to the right. (Props turn cc wise.) I instructed the pilot to add left rudder to maintain centerline. Suddenly the left brake came on; pulling the aircraft left. I instructed the pilot to release the brake; it did not release and pulled the aircraft off the left side of runway. I shut down both engines before departing the runway. The nose gear dug into the soft dirt and collapsed. Damaged both props and nose.

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Original NASA ASRS Text

Title: PA31 instructor pilot reports left brake application by the pilot under training during takeoff roll caused a runway excursion and nose gear collapse.

Narrative: On takeoff the aircraft started to drift to the right. (Props turn CC wise.) I instructed the pilot to add left rudder to maintain centerline. Suddenly the left brake came on; pulling the aircraft left. I instructed the pilot to release the brake; it did not release and pulled the aircraft off the left side of runway. I shut down both engines before departing the runway. The nose gear dug into the soft dirt and collapsed. Damaged both props and nose.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.