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Flight crew of an small transport turboprop took evasive action, by leveling off in descent on base leg, to avoid a helicopter transitioning over an uncontrolled airport.
| Attributes | |
| ACN | 339550 |
| Time | |
| Date | 199606 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ptw |
| State Reference | PA |
| Altitude | agl bound lower : 1500 agl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | other |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Person 1 | |
| Affiliation | government other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 8000 flight time type : 3000 |
| ASRS Report | 339550 |
| Person 2 | |
| Affiliation | government other |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Scheduled government flight turning left base for runway 28 ptw-FBO helicopter transitioning from right to left without transmitting position. We leveled off rather than descend into his altitude. Too many airports in the phl area without control towers. All airspace should be controled airspace!! Phl area airports are accidents waiting to happen! Corrective action due to proper scanning and high level of pilot situational awareness. Helicopter was a heavy helicopter possibly owned by the FBO in phl area!
Original NASA ASRS Text
Title: FLC OF AN SMT TURBOPROP TOOK EVASIVE ACTION, BY LEVELING OFF IN DSCNT ON BASE LEG, TO AVOID A HELI TRANSITIONING OVER AN UNCTLED ARPT.
Narrative: SCHEDULED GOV FLT TURNING L BASE FOR RWY 28 PTW-FBO HELI TRANSITIONING FROM R TO L WITHOUT XMITTING POS. WE LEVELED OFF RATHER THAN DSND INTO HIS ALT. TOO MANY ARPTS IN THE PHL AREA WITHOUT CTL TWRS. ALL AIRSPACE SHOULD BE CTLED AIRSPACE!! PHL AREA ARPTS ARE ACCIDENTS WAITING TO HAPPEN! CORRECTIVE ACTION DUE TO PROPER SCANNING AND HIGH LEVEL OF PLT SITUATIONAL AWARENESS. HELI WAS A HVY HELI POSSIBLY OWNED BY THE FBO IN PHL AREA!
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.