A cfii in an small aircraft was practicing engine out emergencys with a student when he hit the top ...

Attributes
ACN	209190
Time
Date	199204
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ocf airport : x40
State Reference	FL
Altitude	agl bound lower : 100 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : gfk
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	descent other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 950 flight time type : 40
ASRS Report	209190
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	other other : other
Events
Anomaly	conflict : ground critical inflight encounter : weather other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Cfii simulated engine failure at 3000 ft. Student picked airstrip directly below us as his emergency landing field, then did his emergency procedures. Spiraled down at best glidespd. Entered downwind at 1000 ft, turned base at 700 ft and final at 500 ft. Was on the glidepath, at glidespd with power at idle sudden altitude drop. Cfii applied full power. Engine picked up normal but airplane kept losing altitude. Hit tree top with the leading edge of our right wing about midwing followed by a go around. Didn't land at our emergency field. Had enough airspeed to go around climbed up to 1500 ft, there we checked out the plane and observed that the flight characteristics were not adversely affected. We returned to ocala airport and made a normal uneventful landing. Post-flight inspection revealed that the dent in the leading edge of the right wing was plus or minus 2 ft in length and plus or minus 3 inches at the center. Contributing factors: reported winds at ocf nearest airport with AWOS winds 240/10 gusting up to 17 KTS. How it was discovered: sudden altitude drop. Corrective actions: applied full power and try to maintain altitude since we still had our airspeed. Airplane was never stalled. Judgement-decisions: everything seemed normal to me. We were on our glide angle with best glidespd. There was nothing I could do to prevent the altitude loss from happening. I applied full power and leveled off to prevent to a further descent. What really caused the problem: suspected windshear. What can be done to prevent recurrence: no simulated emergencys when windshear conditions exist.

Original NASA ASRS Text

Title: A CFII IN AN SMA WAS PRACTICING ENG OUT EMERS WITH A STUDENT WHEN HE HIT THE TOP OF A TREE. THERE WERE WIND GUSTS AND WINDSHEAR IN THE AREA. THERE WERE NO INJURIES, BUT THE ACFT WAS DAMAGED.

Narrative: CFII SIMULATED ENG FAILURE AT 3000 FT. STUDENT PICKED AIRSTRIP DIRECTLY BELOW US AS HIS EMER LNDG FIELD, THEN DID HIS EMER PROCS. SPIRALED DOWN AT BEST GLIDESPD. ENTERED DOWNWIND AT 1000 FT, TURNED BASE AT 700 FT AND FINAL AT 500 FT. WAS ON THE GLIDEPATH, AT GLIDESPD WITH PWR AT IDLE SUDDEN ALT DROP. CFII APPLIED FULL PWR. ENG PICKED UP NORMAL BUT AIRPLANE KEPT LOSING ALT. HIT TREE TOP WITH THE LEADING EDGE OF OUR R WING ABOUT MIDWING FOLLOWED BY A GAR. DIDN'T LAND AT OUR EMER FIELD. HAD ENOUGH AIRSPD TO GAR CLBED UP TO 1500 FT, THERE WE CHKED OUT THE PLANE AND OBSERVED THAT THE FLT CHARACTERISTICS WERE NOT ADVERSELY AFFECTED. WE RETURNED TO OCALA ARPT AND MADE A NORMAL UNEVENTFUL LNDG. POST-FLT INSPECTION REVEALED THAT THE DENT IN THE LEADING EDGE OF THE R WING WAS PLUS OR MINUS 2 FT IN LENGTH AND PLUS OR MINUS 3 INCHES AT THE CTR. CONTRIBUTING FACTORS: RPTED WINDS AT OCF NEAREST ARPT WITH AWOS WINDS 240/10 GUSTING UP TO 17 KTS. HOW IT WAS DISCOVERED: SUDDEN ALT DROP. CORRECTIVE ACTIONS: APPLIED FULL PWR AND TRY TO MAINTAIN ALT SINCE WE STILL HAD OUR AIRSPD. AIRPLANE WAS NEVER STALLED. JUDGEMENT-DECISIONS: EVERYTHING SEEMED NORMAL TO ME. WE WERE ON OUR GLIDE ANGLE WITH BEST GLIDESPD. THERE WAS NOTHING I COULD DO TO PREVENT THE ALT LOSS FROM HAPPENING. I APPLIED FULL PWR AND LEVELED OFF TO PREVENT TO A FURTHER DSCNT. WHAT REALLY CAUSED THE PROBLEM: SUSPECTED WINDSHEAR. WHAT CAN BE DONE TO PREVENT RECURRENCE: NO SIMULATED EMERS WHEN WINDSHEAR CONDITIONS EXIST.

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.

A cfii in an small aircraft was practicing engine out emergencys with a student when he hit the top of a tree. There were wind gusts and windshear in the area. There were no injuries, but the aircraft was damaged.