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Military pilot climbed above his assigned altitude which resulted in less than standard separation from air carrier jet.
| Attributes | |
| ACN | 157364 |
| Time | |
| Date | 199009 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : psp |
| State Reference | CA |
| Altitude | msl bound lower : 23000 msl bound upper : 23600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla artcc : zbw |
| Operator | other |
| Make Model Name | Fighter |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Heavy Transport, Low Wing, 4 Turbojet Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 157364 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : single pilot |
| Qualification | pilot : military |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | vertical : 400 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Fgt was maintaining 23000' swbnd and heavy transport was westbound into lax descending to 24000'. As heavy transport was leaving 25000' fgt was observed leaving 23300' climbing west/O clearance to climb. I immediately turned heavy transport to an 180 degree heading for avoidance as it appeared otherwise the possibility of a midair was tremendous. Fgt was observed at 23600' then descended back to his assigned altitude.
Original NASA ASRS Text
Title: MIL PLT CLIMBED ABOVE HIS ASSIGNED ALT WHICH RESULTED IN LESS THAN STANDARD SEPARATION FROM ACR JET.
Narrative: FGT WAS MAINTAINING 23000' SWBND AND HVT WAS WBND INTO LAX DSNDING TO 24000'. AS HVT WAS LEAVING 25000' FGT WAS OBSERVED LEAVING 23300' CLBING W/O CLRNC TO CLB. I IMMEDIATELY TURNED HVT TO AN 180 DEG HDG FOR AVOIDANCE AS IT APPEARED OTHERWISE THE POSSIBILITY OF A MIDAIR WAS TREMENDOUS. FGT WAS OBSERVED AT 23600' THEN DSNDED BACK TO HIS ASSIGNED 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.