 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An IFR DH8 at 10000 ft in VMC conditions was issued unknown traffic at 9300 ft 3 mi away and climbing. The DH8 reported traffic in sight. Shortly thereafter, the controller observed the DH8 take evasive action to avoid the unknown aircraft.
| Attributes | |
| ACN | 372298 |
| Time | |
| Date | 199706 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pvd |
| State Reference | RI |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pvd |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 15 flight time total : 2300 |
| ASRS Report | 372298 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : far other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Air carrier X checked in at 10000 ft. I called traffic at 2 O'clock position 3 NM, 9300 ft and appearing to be climbing. Air carrier X called the traffic in sight. A short time later air carrier X made an evasive maneuver to avoid the aircraft which had turned and crossed his bow. Air carrier X climbed into the center's airspace and I coordinated a pointout with ZBW.
Original NASA ASRS Text
Title: AN IFR DH8 AT 10000 FT IN VMC CONDITIONS WAS ISSUED UNKNOWN TFC AT 9300 FT 3 MI AWAY AND CLBING. THE DH8 RPTED TFC IN SIGHT. SHORTLY THEREAFTER, THE CTLR OBSERVED THE DH8 TAKE EVASIVE ACTION TO AVOID THE UNKNOWN ACFT.
Narrative: ACR X CHKED IN AT 10000 FT. I CALLED TFC AT 2 O'CLOCK POS 3 NM, 9300 FT AND APPEARING TO BE CLBING. ACR X CALLED THE TFC IN SIGHT. A SHORT TIME LATER ACR X MADE AN EVASIVE MANEUVER TO AVOID THE ACFT WHICH HAD TURNED AND CROSSED HIS BOW. ACR X CLBED INTO THE CTR'S AIRSPACE AND I COORDINATED A POINTOUT WITH ZBW.
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.