Instructor with spi practicing maneuvers has near midair collision with small transport.

Attributes
ACN	196467
Time
Date	199112
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ash
State Reference	NH
Altitude	msl bound lower : 4000 msl bound upper : 4400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : cle
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 1000 flight time type : 65
ASRS Report	196467
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : student
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other other : unspecified cockpit
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 300 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

During a normal aerobatic training flight after completing a 180 degree clearing turn I thought I saw something over my right shoulder. I looked around and did not see anything. I briefed my student on how to do a departure stall and after slowing down to departure speed we added power and started to pull up. We started at 4000 ft and as we passed through 4300 I spotted a twin engine plane coming over my left shoulder approximately 300 ft higher. I pulled the power and lowered the nose and watched the plane continue on.

Original NASA ASRS Text

Title: INSTRUCTOR WITH SPI PRACTICING MANEUVERS HAS NMAC WITH SMT.

Narrative: DURING A NORMAL AEROBATIC TRAINING FLT AFTER COMPLETING A 180 DEG CLRING TURN I THOUGHT I SAW SOMETHING OVER MY R SHOULDER. I LOOKED AROUND AND DID NOT SEE ANYTHING. I BRIEFED MY STUDENT ON HOW TO DO A DEP STALL AND AFTER SLOWING DOWN TO DEP SPD WE ADDED PWR AND STARTED TO PULL UP. WE STARTED AT 4000 FT AND AS WE PASSED THROUGH 4300 I SPOTTED A TWIN ENG PLANE COMING OVER MY L SHOULDER APPROX 300 FT HIGHER. I PULLED THE PWR AND LOWERED THE NOSE AND WATCHED THE PLANE CONTINUE ON.

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.