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Air carrier widebody transport given climb from FL280 to FL310 on initial contact with egtt ARTCC. Shortly after climb was started the widebody transport saw another air carrier at their 3 O'clock position at FL310 and this was confirmed on their TCASII. The widebody transport crew took evasive action of a turn and ATC gave a turn and descent at the same time. Less than standard separation occurred shortly thereafter.
| Attributes | |
| ACN | 347846 |
| Time | |
| Date | 199609 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bne |
| State Reference | FO |
| Altitude | msl bound lower : 28000 msl bound upper : 30700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : egtt |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 15000 flight time type : 4000 |
| ASRS Report | 347846 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 5000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We were at FL280 20 NM south of bne at XA29Z, french ATC handed us off to london center. We reported to london level at FL280. London responded to maintain FL310 and reclred us on our flight plan route. We initiated climb to FL310. At about FL304 we saw air carrier Y flight at FL310 at our 3 O'clock position, converging. We began evasive action on our own seconds before TCASII advised us of the conflict. London ATC then gave us a heading of 350 degrees and to maintain FL290. The 350 degree heading in our opinion was not a good heading to resolve the conflict. We had already turned beyond that on our own because we had visual contact. ATC then gave us a 330 degrees as near as I can recall and we leveled at FL290. Air carrier X also took evasive action. Our maximum altitude was FL307 and we estimate distance between aircraft to be .5 to 1 mi at the closest point. London ATC accepted our clearance readback of maintain FL310 and never called a traffic conflict as we climbed from FL280 to FL310. We had already initiated evasive action when ATC intervened with their clearance.
Original NASA ASRS Text
Title: ACR WDB GIVEN CLB FROM FL280 TO FL310 ON INITIAL CONTACT WITH EGTT ARTCC. SHORTLY AFTER CLB WAS STARTED THE WDB SAW ANOTHER ACR AT THEIR 3 O'CLOCK POS AT FL310 AND THIS WAS CONFIRMED ON THEIR TCASII. THE WDB CREW TOOK EVASIVE ACTION OF A TURN AND ATC GAVE A TURN AND DSCNT AT THE SAME TIME. LTSS OCCURRED SHORTLY THEREAFTER.
Narrative: WE WERE AT FL280 20 NM S OF BNE AT XA29Z, FRENCH ATC HANDED US OFF TO LONDON CTR. WE RPTED TO LONDON LEVEL AT FL280. LONDON RESPONDED TO MAINTAIN FL310 AND RECLRED US ON OUR FLT PLAN RTE. WE INITIATED CLB TO FL310. AT ABOUT FL304 WE SAW ACR Y FLT AT FL310 AT OUR 3 O'CLOCK POS, CONVERGING. WE BEGAN EVASIVE ACTION ON OUR OWN SECONDS BEFORE TCASII ADVISED US OF THE CONFLICT. LONDON ATC THEN GAVE US A HDG OF 350 DEGS AND TO MAINTAIN FL290. THE 350 DEG HDG IN OUR OPINION WAS NOT A GOOD HEADING TO RESOLVE THE CONFLICT. WE HAD ALREADY TURNED BEYOND THAT ON OUR OWN BECAUSE WE HAD VISUAL CONTACT. ATC THEN GAVE US A 330 DEGS AS NEAR AS I CAN RECALL AND WE LEVELED AT FL290. ACR X ALSO TOOK EVASIVE ACTION. OUR MAX ALT WAS FL307 AND WE ESTIMATE DISTANCE BTWN ACFT TO BE .5 TO 1 MI AT THE CLOSEST POINT. LONDON ATC ACCEPTED OUR CLRNC READBACK OF MAINTAIN FL310 AND NEVER CALLED A TFC CONFLICT AS WE CLBED FROM FL280 TO FL310. WE HAD ALREADY INITIATED EVASIVE ACTION WHEN ATC INTERVENED WITH THEIR CLRNC.
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.