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A single pilot in a hawker hunter strays into class a airspace while attempting to fly the fringe between class east and class a airspace at 19700 ft 30 mi east of pdz, ca.
| Attributes | |
| ACN | 504560 |
| Time | |
| Date | 200103 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : pdz.vortac |
| State Reference | CA |
| Altitude | msl bound lower : 17900 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | general aviation : personal |
| Make Model Name | British Aerospace Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other other vortac |
| Flight Phase | cruise : level |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 20 flight time total : 3200 flight time type : 135 |
| ASRS Report | 504560 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | airspace violation : entry inflight encounter other non adherence : far other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned airspace flight crew : exited penetrated airspace |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airspace Structure Weather |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
VFR 17500 ft with advisory. Advised ZLA I could not maintain VFR and would have to climb or descend for oncoming clouds. ZLA advised ok to 17900 ft. This appeared to work for a while then center advised mode C was FL181 and I would have to descend or change to IFR flight plan. My altimeter was reading FL180. I believe that when I was manipulating the GPS I strayed up 100-200 ft. This is easily done at 500+ KTS TAS. I immediately descended to less than 17900 ft and proceeded to el centro naval facility without incident. There was no other comment from center regarding the incursion. No immediate safety problem presented. I should have descended to 15500 ft giving myself a larger margin for maintaining a VFR altitude.
Original NASA ASRS Text
Title: A SINGLE PLT IN A HAWKER HUNTER STRAYS INTO CLASS A AIRSPACE WHILE ATTEMPTING TO FLY THE FRINGE BTWN CLASS E AND CLASS A AIRSPACE AT 19700 FT 30 MI E OF PDZ, CA.
Narrative: VFR 17500 FT WITH ADVISORY. ADVISED ZLA I COULD NOT MAINTAIN VFR AND WOULD HAVE TO CLB OR DSND FOR ONCOMING CLOUDS. ZLA ADVISED OK TO 17900 FT. THIS APPEARED TO WORK FOR A WHILE THEN CTR ADVISED MODE C WAS FL181 AND I WOULD HAVE TO DSND OR CHANGE TO IFR FLT PLAN. MY ALTIMETER WAS READING FL180. I BELIEVE THAT WHEN I WAS MANIPULATING THE GPS I STRAYED UP 100-200 FT. THIS IS EASILY DONE AT 500+ KTS TAS. I IMMEDIATELY DSNDED TO LESS THAN 17900 FT AND PROCEEDED TO EL CENTRO NAVAL FACILITY WITHOUT INCIDENT. THERE WAS NO OTHER COMMENT FROM CTR REGARDING THE INCURSION. NO IMMEDIATE SAFETY PROB PRESENTED. I SHOULD HAVE DSNDED TO 15500 FT GIVING MYSELF A LARGER MARGIN FOR MAINTAINING A VFR ALT.
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.