L39 pilot penetrates class a airspace during aerobatic maneuver without clearance.

Attributes
ACN	798359
Time
Date	200808
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Military Trainer
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 5200 flight time type : 250
ASRS Report	798359
Events
Anomaly	airspace violation : entry non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited penetrated airspace
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Possible inadvertent penetration of class a airspace during loop maneuver. Aircraft ran out of energy before top of loop -- nose vertical around 17000 ft. Took several tries to kick aircraft out of stalled vertical position. Lost track of altitude during recovery. Possible momentary penetration of FL180. More aggressive use of rudder required and better energy management.

Original NASA ASRS Text

Title: L39 PLT PENETRATES CLASS A AIRSPACE DURING AEROBATIC MANEUVER WITHOUT CLEARANCE.

Narrative: POSSIBLE INADVERTENT PENETRATION OF CLASS A AIRSPACE DURING LOOP MANEUVER. ACFT RAN OUT OF ENERGY BEFORE TOP OF LOOP -- NOSE VERT AROUND 17000 FT. TOOK SEVERAL TRIES TO KICK ACFT OUT OF STALLED VERT POS. LOST TRACK OF ALT DURING RECOVERY. POSSIBLE MOMENTARY PENETRATION OF FL180. MORE AGGRESSIVE USE OF RUDDER REQUIRED AND BETTER ENERGY MGMNT.

Data retrieved from NASA's ASRS site as of May 2009 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.