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Flight crew of an mdt descended in response to a TCASII RA resulting in the sighting of the aircraft. Near midair collision.
| Attributes | |
| ACN | 277763 |
| Time | |
| Date | 199407 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : psm |
| State Reference | NH |
| Altitude | msl bound lower : 9500 msl bound upper : 9500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bos |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute airway : zbw |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | PA-31 Navajo Chieftan/Mojave/Navajo T1020 |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 2970 flight time type : 750 |
| ASRS Report | 277763 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 600 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Departed portland, me, at XI00 local for (iad), during climb we received a TA for traffic at 12 O'clock. Climbing through 9500 ft we received a RA to descend. As I initiated the descent, the captain spotted the traffic as it passed just above us and to our left going northbound. (It was a dark blue piper chieftain). When we queried ZBW afterward, they said that they just started showing the traffic on radar as we passed and would try to track it.
Original NASA ASRS Text
Title: FLC OF AN MDT DSNDED IN RESPONSE TO A TCASII RA RESULTING IN THE SIGHTING OF THE ACFT. NMAC.
Narrative: DEPARTED PORTLAND, ME, AT XI00 LCL FOR (IAD), DURING CLB WE RECEIVED A TA FOR TFC AT 12 O'CLOCK. CLBING THROUGH 9500 FT WE RECEIVED A RA TO DSND. AS I INITIATED THE DSCNT, THE CAPT SPOTTED THE TFC AS IT PASSED JUST ABOVE US AND TO OUR L GOING NBOUND. (IT WAS A DARK BLUE PIPER CHIEFTAIN). WHEN WE QUERIED ZBW AFTERWARD, THEY SAID THAT THEY JUST STARTED SHOWING THE TFC ON RADAR AS WE PASSED AND WOULD TRY TO TRACK IT.
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.