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PA-28 instructor pilot reported the student lost directional control on the landing roll after locking up the left brake.
| Attributes | |
| ACN | 1664166 |
| Time | |
| Date | 201907 |
| 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 | PA-28 Cherokee/Archer/Dakota/Pillan/Warrior |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Landing |
| Route In Use | Visual Approach |
| Person 1 | |
| Function | Instructor Pilot Not Flying |
| Qualification | Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 195 Flight Crew Total 493 Flight Crew Type 225 |
| Events | |
| Anomaly | Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway |
Narrative:
Changed pattern from runway 2 to runway 14; we were already on base by then for runway 14. Approach setup was fine; we entered the flare fine; landed and then immediately heard the left tire screeching. The student had locked up the left brake. I tried taking controls and pushing on the right rudder; however he was overpowering me. So we ended up skidding off the runway to the left. We did a ground loop and came to a stop. The prop luckily never struck the ground; and the tires were still inflated by the end of it. I quickly shut down the aircraft and shut off the fuel following. Tower asked if we needed assistance; and I said yes.something that can be done to prevent this is to really make sure to look at your student's setup getting into the plane; ensure that the student has his/her seat adjusted properly and cannot lock his/her leg into place. We were also given strictly a touch and go; so in our case we should have just stuck with a 'go around'; or 'low approach'. Something that I can do better as an instructor is to really harp on brakes; and proper foot placement on the rudder. I already use 'heels on the deck' for takeoff; and can also use it again on landing.
Original NASA ASRS Text
Title: PA-28 instructor pilot reported the student lost directional control on the landing roll after locking up the left brake.
Narrative: Changed pattern from Runway 2 to Runway 14; we were already on base by then for Runway 14. Approach setup was fine; we entered the flare fine; landed and then immediately heard the left tire screeching. The student had locked up the left brake. I tried taking controls and pushing on the right rudder; however he was overpowering me. So we ended up skidding off the runway to the left. We did a ground loop and came to a stop. The prop luckily never struck the ground; and the tires were still inflated by the end of it. I quickly shut down the aircraft and shut off the fuel following. Tower asked if we needed assistance; and I said yes.Something that can be done to prevent this is to really make sure to look at your student's setup getting into the plane; ensure that the student has his/her seat adjusted properly and cannot lock his/her leg into place. We were also given strictly a touch and go; so in our case we should have just stuck with a 'Go around'; or 'Low approach'. Something that I can do better as an instructor is to really harp on brakes; and proper foot placement on the rudder. I already use 'Heels on the deck' for takeoff; and can also use it again on landing.
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.