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C152 pilot misinterps L30 geographic class B clearance when directed to fly 'over the numbers' while negotiating a departure clearance from vgt.
| Attributes | |
| ACN | 610512 |
| Time | |
| Date | 200403 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : vgt.airport |
| State Reference | NV |
| Altitude | msl single value : 4500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : l30.tracon |
| Operator | general aviation : personal |
| Make Model Name | Cessna 152 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : private |
| Experience | flight time last 90 days : 100 flight time total : 800 flight time type : 750 |
| ASRS Report | 610512 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
After taking off from north las vegas airport, approach/departure told me to fly to the numbers 19 and then to the numbers 25 and then to turn to a heading of 180 degrees. I had never received instructions like these before and I flew to 19 numbers and temporarily flew a heading of 190 degrees until ATC gave me vectors. Afterwards, I now understand what they wanted me to do. If I encounter (when I encounter) similar instructions in the future, I'll anticipate no confusion. My lack of flying experience in class B airspace contributed to the confusion.
Original NASA ASRS Text
Title: C152 PLT MISINTERPS L30 GEOGRAPHIC CLASS B CLRNC WHEN DIRECTED TO FLY 'OVER THE NUMBERS' WHILE NEGOTIATING A DEP CLRNC FROM VGT.
Narrative: AFTER TAKING OFF FROM NORTH LAS VEGAS ARPT, APCH/DEP TOLD ME TO FLY TO THE NUMBERS 19 AND THEN TO THE NUMBERS 25 AND THEN TO TURN TO A HDG OF 180 DEGS. I HAD NEVER RECEIVED INSTRUCTIONS LIKE THESE BEFORE AND I FLEW TO 19 NUMBERS AND TEMPORARILY FLEW A HDG OF 190 DEGS UNTIL ATC GAVE ME VECTORS. AFTERWARDS, I NOW UNDERSTAND WHAT THEY WANTED ME TO DO. IF I ENCOUNTER (WHEN I ENCOUNTER) SIMILAR INSTRUCTIONS IN THE FUTURE, I'LL ANTICIPATE NO CONFUSION. MY LACK OF FLYING EXPERIENCE IN CLASS B AIRSPACE CONTRIBUTED TO THE CONFUSION.
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.