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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Climb through occupied altitude creates an near midair collision in overwater operation night operation.
| Attributes | |
| ACN | 230943 |
| Time | |
| Date | 199301 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : mkjk |
| State Reference | FO |
| Altitude | msl bound lower : 35000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : mkjk |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : other oceanic enroute : atlantic |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : other oceanic enroute : atlantic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 300 |
| ASRS Report | 230943 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : clearance non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 200 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Approximately AM10Z, jan/wed/93, we entered kingston center airspace (128.1). We requested to leave FL330 for FL370. The kingston controller requested we call when we passed air carrier Y (flight number unknown). We passed air carrier Y who was at FL310. The controller asked air carrier Y if they had passed us and air carrier Y replied 'affirmative we have passed air carrier X.' we also informed kingston center that we had passed air carrier Y. We were then cleared to FL370 and we discussed that it was strange to call traffic below us and then be cleared to climb. Visibility was about 4-5 mi and it was totally dark. Approximately 15-20 seconds before the near miss we observed the red and green wing lights, several comments and questions about altitude were made between the first officer and I. I disconnected the autoplt and made a 45 degree bank to the left, missing air carrier Z by approximately 100-300 ft at FL350. We believe the airplane was an medium large transport. I informed kingston center of the near miss and air carrier Y did the same. Kingston center asked air carrier Y if he was squawking abcd and air carrier Y replied he was 'not squawking.' air carrier Y was then turned over to havana center (123.7). We had no TCASII indication which added to our delay in the evasive maneuver.
Original NASA ASRS Text
Title: CLB THROUGH OCCUPIED ALT CREATES AN NMAC IN OVERWATER OP NIGHT OP.
Narrative: APPROX AM10Z, JAN/WED/93, WE ENTERED KINGSTON CTR AIRSPACE (128.1). WE REQUESTED TO LEAVE FL330 FOR FL370. THE KINGSTON CTLR REQUESTED WE CALL WHEN WE PASSED ACR Y (FLT NUMBER UNKNOWN). WE PASSED ACR Y WHO WAS AT FL310. THE CTLR ASKED ACR Y IF THEY HAD PASSED US AND ACR Y REPLIED 'AFFIRMATIVE WE HAVE PASSED ACR X.' WE ALSO INFORMED KINGSTON CTR THAT WE HAD PASSED ACR Y. WE WERE THEN CLRED TO FL370 AND WE DISCUSSED THAT IT WAS STRANGE TO CALL TFC BELOW US AND THEN BE CLRED TO CLB. VISIBILITY WAS ABOUT 4-5 MI AND IT WAS TOTALLY DARK. APPROX 15-20 SECONDS BEFORE THE NEAR MISS WE OBSERVED THE RED AND GREEN WING LIGHTS, SEVERAL COMMENTS AND QUESTIONS ABOUT ALT WERE MADE BTWN THE FO AND I. I DISCONNECTED THE AUTOPLT AND MADE A 45 DEG BANK TO THE L, MISSING ACR Z BY APPROX 100-300 FT AT FL350. WE BELIEVE THE AIRPLANE WAS AN MLG. I INFORMED KINGSTON CTR OF THE NEAR MISS AND ACR Y DID THE SAME. KINGSTON CTR ASKED ACR Y IF HE WAS SQUAWKING ABCD AND ACR Y REPLIED HE WAS 'NOT SQUAWKING.' ACR Y WAS THEN TURNED OVER TO HAVANA CTR (123.7). WE HAD NO TCASII INDICATION WHICH ADDED TO OUR DELAY IN THE EVASIVE MANEUVER.
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.