Small aircraft instructor was unable to take control from a large trainee.

Attributes
ACN	443191
Time
Date	199907
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : x46.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot instruction : instructor oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 360 flight time type : 200
ASRS Report	443191
Person 2
Affiliation	other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : student
Events
Anomaly	conflict : ground critical excursion : runway non adherence : far non adherence : company policies non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Whilst landing at opa locka west, aircraft drifted to the right. I instructed full stop as his hand was on the throttle and demanded control of the airplane. It seems in shock my student applied right rudder and power. Making a recovery for me as a less strong person (student -- large male) was not possible. Damage not structural (nose gear/propeller bent). No injury occurred to my student or myself.

Original NASA ASRS Text

Title: SMA INSTRUCTOR WAS UNABLE TO TAKE CTL FROM A LARGE TRAINEE.

Narrative: WHILST LNDG AT OPA LOCKA WEST, ACFT DRIFTED TO THE R. I INSTRUCTED FULL STOP AS HIS HAND WAS ON THE THROTTLE AND DEMANDED CTL OF THE AIRPLANE. IT SEEMS IN SHOCK MY STUDENT APPLIED R RUDDER AND PWR. MAKING A RECOVERY FOR ME AS A LESS STRONG PERSON (STUDENT -- LARGE MALE) WAS NOT POSSIBLE. DAMAGE NOT STRUCTURAL (NOSE GEAR/PROP BENT). NO INJURY OCCURRED TO MY STUDENT OR MYSELF.

Data retrieved from NASA's ASRS site as of July 2007 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.