![]() |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
| 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 |
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.