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A C172 instructor reported his student lost control of the aircraft while taxiing; departed the runway into the grass; striking a taxi light with the prop. The student reported loss of brakes.
| Attributes | |
| ACN | 891248 |
| Time | |
| Date | 201005 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Taxi |
| Route In Use | None |
| Flight Plan | None |
| Component | |
| Aircraft Component | Normal Brake System |
| Person 1 | |
| Function | Instructor |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 113 Flight Crew Total 2841 Flight Crew Type 1500 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Ground Event / Encounter Object Ground Excursion Runway Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
Aircraft started. Radios set. Active runway was determined. Student pilot applied power and checked brakes. Taxi continued west on east/west taxiway. Student pilot initiated 90 degree turn to continue movement to runway and began to veer right of center line and continued movement onto grass striking taxi light with prop. At a point roughly 30-45 degrees into the turn student reported 'no brakes'. I immediately applied full brakes but was unable to stop aircraft's movement into the grass.
Original NASA ASRS Text
Title: A C172 Instructor reported his student lost control of the aircraft while taxiing; departed the runway into the grass; striking a taxi light with the prop. The student reported loss of brakes.
Narrative: Aircraft started. Radios set. Active runway was determined. Student pilot applied power and checked brakes. Taxi continued west on east/west taxiway. Student pilot initiated 90 degree turn to continue movement to runway and began to veer right of center line and continued movement onto grass striking taxi light with prop. At a point roughly 30-45 degrees into the turn student reported 'no brakes'. I immediately applied full brakes but was unable to stop aircraft's movement into the grass.
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.