 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier cleared for turn after takeoff delays turn to avoid unrpted helicopter traffic at same altitude.
| Attributes | |
| ACN | 447490 |
| Time | |
| Date | 199908 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mdw.airport |
| State Reference | IL |
| Altitude | agl bound lower : 400 agl bound upper : 500 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tower : mdw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial ground : parked |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR None |
| Aircraft 2 | |
| Controlling Facilities | tower : mdw.tower |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| ASRS Report | 447490 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 1500 vertical : 100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We were cleared for takeoff on runway 4R with instructions to turn right to 130 degree heading/climb to 3000 ft. We were issued no TA's. At 400 ft AGL I reached up to select the heading and spotted a helicopter at 1 O'clock position and less than 1/4 mi at approximately 500 ft AGL on a parallel course. We delayed our turn until past and above the helicopter. We received no TCASII traffic display. Had I not seen the helicopter and had we initiated our turn at the normal altitude I am certain we would have collided with the helicopter.
Original NASA ASRS Text
Title: ACR CLRED FOR TURN AFTER TKOF DELAYS TURN TO AVOID UNRPTED HELI TFC AT SAME ALT.
Narrative: WE WERE CLRED FOR TKOF ON RWY 4R WITH INSTRUCTIONS TO TURN R TO 130 DEG HDG/CLB TO 3000 FT. WE WERE ISSUED NO TA'S. AT 400 FT AGL I REACHED UP TO SELECT THE HEADING AND SPOTTED A HELI AT 1 O'CLOCK POS AND LESS THAN 1/4 MI AT APPROX 500 FT AGL ON A PARALLEL COURSE. WE DELAYED OUR TURN UNTIL PAST AND ABOVE THE HELI. WE RECEIVED NO TCASII TFC DISPLAY. HAD I NOT SEEN THE HELI AND HAD WE INITIATED OUR TURN AT THE NORMAL ALT I AM CERTAIN WE WOULD HAVE COLLIDED WITH THE HELI.
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.