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Medium large transport given descent southeast bfl and GPWS activated. Flight crew pulled up and caused less than standard separation with unknown opposite direction traffic.
| Attributes | |
| ACN | 86020 |
| Time | |
| Date | 198804 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bfl |
| State Reference | CA |
| Altitude | msl bound lower : 8500 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude descent other |
| Route In Use | enroute airway : bfl |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 130 flight time total : 4500 |
| ASRS Report | 86004 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 14000 flight time type : 2400 |
| ASRS Report | 86281 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other other |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other other |
Narrative:
With ATC clearance from 10000 to 8000', 35 mi southeast of bakersfield, ca at 8500', terrain warning sounded and descent was stopped and a climb started to stop warning. ATC had other traffic at 9000' and we and the other traffic were turned away from each other. Afterwards, we turned back and landed at bfl.
Original NASA ASRS Text
Title: MLG GIVEN DESCENT SOUTHEAST BFL AND GPWS ACTIVATED. FLT CREW PULLED UP AND CAUSED LESS THAN STANDARD SEPARATION WITH UNKNOWN OPPOSITE DIRECTION TRAFFIC.
Narrative: WITH ATC CLRNC FROM 10000 TO 8000', 35 MI SE OF BAKERSFIELD, CA AT 8500', TERRAIN WARNING SOUNDED AND DSCNT WAS STOPPED AND A CLB STARTED TO STOP WARNING. ATC HAD OTHER TFC AT 9000' AND WE AND THE OTHER TFC WERE TURNED AWAY FROM EACH OTHER. AFTERWARDS, WE TURNED BACK AND LANDED AT BFL.
Data retrieved from NASA's ASRS site as of August 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.