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.

Home

Browse by month

Random

Latest

About

Contact

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.