Instructor and student conducting training maneuvers at block altitudes and defined airspace exited ...

Narrative:

I requested a block of airspace and received a clearance to remain south of the VOR 270 radial and west of the 180 radial 3000 block 5000. We were performing recovery from unusual attitudes in and out of IMC. I had two VOR receivers and tuned in the 270 and 180 on them. Upon completion of the maneuvers; we recovered on a north heading. We still had full deflection of both needles and I said to my student; 'let's request vectors for the approach now.' we tuned the inbound course and keyed the microphone to request the vectors. The controller asked what our heading was; we stated 360 north. He then informed us that we had broken our clearance and strayed north of the 270 radial. Factors: IMC; dusk conditions; taking the 270 radial out of the #1 VOR head before receiving the clearance for the approach; forecast winds 265 @ 30; actual winds were 190 at 35 KTS; thunderstorms in the area. Our ground speed on a northerly heading was 160 knots and on a southerly heading 65 KTS. It only took a brief period to exceed the 270 radial on the north heading. I should have made recovery and headed to a west of southwesterly heading to make sure we remained on our clearance. I often request a similar block and have not had problems maintaining the clearance. We were on an IFR clearance from approach control and were at the end of a 3 hour flight of practice approaches.

Original NASA ASRS Text

Title: Instructor and student conducting training maneuvers at block altitudes and defined airspace exited clearance airspace; listing a number of causal factors contributed to this event.

Narrative: I requested a block of airspace and received a clearance to remain south of the VOR 270 radial and west of the 180 radial 3000 block 5000. We were performing recovery from unusual attitudes in and out of IMC. I had two VOR receivers and tuned in the 270 and 180 on them. Upon completion of the maneuvers; we recovered on a north heading. We still had full deflection of both needles and I said to my student; 'let's request vectors for the approach now.' We tuned the inbound course and keyed the microphone to request the vectors. The Controller asked what our heading was; we stated 360 north. He then informed us that we had broken our clearance and strayed north of the 270 radial. Factors: IMC; dusk conditions; taking the 270 radial out of the #1 VOR head before receiving the clearance for the approach; forecast winds 265 @ 30; actual winds were 190 at 35 KTS; thunderstorms in the area. Our ground speed on a northerly heading was 160 knots and on a southerly heading 65 KTS. It only took a brief period to exceed the 270 radial on the north heading. I should have made recovery and headed to a west of southwesterly heading to make sure we remained on our clearance. I often request a similar block and have not had problems maintaining the clearance. We were on an IFR clearance from approach control and were at the end of a 3 hour flight of practice approaches.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	843383
Time
Date	200907
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Make Model Name	Sundowner 23
Operating Under FAR Part	Part 91
Flight Phase	Other unusual attitude training
Route In Use	Other BLOCK
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Commercial Flight Crew Instrument
Experience	Flight Crew Last 90 Days 234 Flight Crew Total 5500 Flight Crew Type 3000
Events
Anomaly	Deviation - Procedural Clearance