<< >> NASA ASRS Report 1593652, November 2018

Cessna 402 instructor pilot reported a brake system anomaly while taxiing caused the aircraft to briefly depart the paved surface.

Attributes
ACN	1593652
Time
Date	201811
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	Cessna 402/402C/B379 Businessliner/Utiliner
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	VFR
Component
Aircraft Component	Brake System
Person 1
Function	Instructor Pilot Not Flying Captain
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Commercial
Experience	Flight Crew Last 90 Days 116.6 Flight Crew Total 1055.2 Flight Crew Type 525.1
Events
Anomaly	Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Taxiway

Narrative:

While conducting training; the trainee's brakes fully compressed and airplane veered off of the taxiway into the grass for a brief time. Using the copilot brakes we were able to get back into the taxiway without incident. No damage was found.

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Original NASA ASRS Text

Title: Cessna 402 instructor pilot reported a brake system anomaly while taxiing caused the aircraft to briefly depart the paved surface.

Narrative: While conducting training; the trainee's brakes fully compressed and airplane veered off of the taxiway into the grass for a brief time. Using the copilot brakes we were able to get back into the taxiway without incident. No damage was found.

Data retrieved from NASA's ASRS site 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.