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An S80 on bdl approach control frequency narrowly avoids another aircraft that is on a VFR climb but on ZBW frequency.
| Attributes | |
| ACN | 429674 |
| Time | |
| Date | 199902 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| State Reference | CT |
| Altitude | msl bound lower : 10000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bdl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : dpk 2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zbw.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Navigation In Use | other vortac |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : vfr enroute : direct |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 429674 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac non adherence : far non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other controllerb other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 200 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airspace Structure ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Established on dpk 2 arrival into bdl. Level 11000 ft MSL, 310 KIAS, 341 degree radial mad VOR. Received a TA from TCASII and bdl approach control simultaneously. Resolution of TCASII went immediately to monitor vertical speed then immediately to descend now. Captain acquired aircraft Y visually and instructed first officer to increase descent rate. Aircraft was on a perfect intercept to our flight. Captain pushed yoke abruptly forward and noticed that VFR aircraft abruptly increased pitch angle. Aircraft passed approximately 200 ft directly over us. TCASII confirmed 200 ft. Telephone conversation with bdl approach control stated aircraft Y was climbing visually from new york to boston airspace and changing frequencys. ZBW alerted him in time for him to take evasive action. Note: ceiling and visibility unlimited but quite hazy. Completed landing into bdl uneventfully.
Original NASA ASRS Text
Title: AN S80 ON BDL APCH CTL FREQ NARROWLY AVOIDS ANOTHER ACFT THAT IS ON A VFR CLB BUT ON ZBW FREQ.
Narrative: ESTABLISHED ON DPK 2 ARR INTO BDL. LEVEL 11000 FT MSL, 310 KIAS, 341 DEG RADIAL MAD VOR. RECEIVED A TA FROM TCASII AND BDL APCH CTL SIMULTANEOUSLY. RESOLUTION OF TCASII WENT IMMEDIATELY TO MONITOR VERT SPD THEN IMMEDIATELY TO DSND NOW. CAPT ACQUIRED ACFT Y VISUALLY AND INSTRUCTED FO TO INCREASE DSCNT RATE. ACFT WAS ON A PERFECT INTERCEPT TO OUR FLT. CAPT PUSHED YOKE ABRUPTLY FORWARD AND NOTICED THAT VFR ACFT ABRUPTLY INCREASED PITCH ANGLE. ACFT PASSED APPROX 200 FT DIRECTLY OVER US. TCASII CONFIRMED 200 FT. TELEPHONE CONVERSATION WITH BDL APCH CTL STATED ACFT Y WAS CLBING VISUALLY FROM NEW YORK TO BOSTON AIRSPACE AND CHANGING FREQS. ZBW ALERTED HIM IN TIME FOR HIM TO TAKE EVASIVE ACTION. NOTE: CEILING AND VISIBILITY UNLIMITED BUT QUITE HAZY. COMPLETED LNDG INTO BDL UNEVENTFULLY.
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.