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MD80 first officer momentarily turned the opposite way when responding to ARTCC request to turn for traffic separation, resulting in a TCASII RA.
| Attributes | |
| ACN | 539275 |
| Time | |
| Date | 200202 |
| Day | Thu |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | navaid : bka.vortac |
| State Reference | AK |
| Altitude | msl single value : 32500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zan.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute airway : j133.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zan.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 16000 flight time type : 10000 |
| ASRS Report | 539275 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 6500 flight time type : 3500 |
| ASRS Report | 538979 |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | controller : separated traffic none taken : detected after the fact none taken : anomaly accepted |
| Miss Distance | horizontal : 6000 vertical : 1500 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While en route from anc to sea, we requested and were granted a climb from FL290 to FL330. During the climb, ATC directed a 30 degree right turn. Due to distrs from dealing with a medical emergency on board our aircraft, the copilot (who was flying) started a left turn but corrected back to the right. The slight delay in initiating the right turn resulted in a TCASII RA ('climb, climb, climb'). The other aircraft was in sight at all times and passed approximately 1 mi left and 1500 ft below. There were no radio xmissions from ATC during or after the event.
Original NASA ASRS Text
Title: MD80 FO MOMENTARILY TURNED THE OPPOSITE WAY WHEN RESPONDING TO ARTCC REQUEST TO TURN FOR TFC SEPARATION, RESULTING IN A TCASII RA.
Narrative: WHILE ENRTE FROM ANC TO SEA, WE REQUESTED AND WERE GRANTED A CLB FROM FL290 TO FL330. DURING THE CLB, ATC DIRECTED A 30 DEG R TURN. DUE TO DISTRS FROM DEALING WITH A MEDICAL EMER ON BOARD OUR ACFT, THE COPLT (WHO WAS FLYING) STARTED A L TURN BUT CORRECTED BACK TO THE R. THE SLIGHT DELAY IN INITIATING THE R TURN RESULTED IN A TCASII RA ('CLB, CLB, CLB'). THE OTHER ACFT WAS IN SIGHT AT ALL TIMES AND PASSED APPROX 1 MI L AND 1500 FT BELOW. THERE WERE NO RADIO XMISSIONS FROM ATC DURING OR AFTER THE EVENT.
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.