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An air carrier B767 in foreign airspace and deviating for WX has loss of separation with another air carrier at the same altitude. Both aircraft were in radar contact.
| Attributes | |
| ACN | 414801 |
| Time | |
| Date | 199809 |
| Day | Sun |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : man |
| State Reference | FO |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : sbmu |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other cruise other |
| 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 |
| ASRS Report | 414801 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 18000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
At FL310 we were deviating around thunderstorms around manaus. We were in radar contact. We had requested FL390. About 100 mi north of man we reintercepted UA300. On TCASII another aircraft popped up 10 NM ahead also at FL310. We asked man center about this but received no response and again requested FL390. At 5 NM separation, I again requested to know who was ahead at FL310. At 3 NM I advised man center that there was an aircraft 3 NM ahead at FL310 and that we were climbing to FL320. The controller then gave us a climb to FL390. He asked us if we were on UA315. I told him that we were on UA300 which was our filed route. I finally got out of the controller that aircraft had been air carrier Y manaus to boa vista. At that, I began wondering if our hand written ATC filed flight plan had been up UA315 unlike our computer flight plan, which was up UA300. Later, it was found that we were on the correct airway with both the ATC filed and the computer flight plan were up UA300. The controller asked if we had been cleared direct pakon. I really don't know. If we were I missed it. Even if we were after the deviation we wouldn't have been much off the airway. If we did miss the clearance why? Language -- close flight numbers with another air carrier? Switching breaks? Why didn't the controller catch it if we were in radar contact? Thank you TCASII.
Original NASA ASRS Text
Title: AN ACR B767 IN FOREIGN AIRSPACE AND DEVIATING FOR WX HAS LOSS OF SEPARATION WITH ANOTHER ACR AT THE SAME ALT. BOTH ACFT WERE IN RADAR CONTACT.
Narrative: AT FL310 WE WERE DEVIATING AROUND TSTMS AROUND MANAUS. WE WERE IN RADAR CONTACT. WE HAD REQUESTED FL390. ABOUT 100 MI N OF MAN WE REINTERCEPTED UA300. ON TCASII ANOTHER ACFT POPPED UP 10 NM AHEAD ALSO AT FL310. WE ASKED MAN CTR ABOUT THIS BUT RECEIVED NO RESPONSE AND AGAIN REQUESTED FL390. AT 5 NM SEPARATION, I AGAIN REQUESTED TO KNOW WHO WAS AHEAD AT FL310. AT 3 NM I ADVISED MAN CTR THAT THERE WAS AN ACFT 3 NM AHEAD AT FL310 AND THAT WE WERE CLBING TO FL320. THE CTLR THEN GAVE US A CLB TO FL390. HE ASKED US IF WE WERE ON UA315. I TOLD HIM THAT WE WERE ON UA300 WHICH WAS OUR FILED RTE. I FINALLY GOT OUT OF THE CTLR THAT ACFT HAD BEEN ACR Y MANAUS TO BOA VISTA. AT THAT, I BEGAN WONDERING IF OUR HAND WRITTEN ATC FILED FLT PLAN HAD BEEN UP UA315 UNLIKE OUR COMPUTER FLT PLAN, WHICH WAS UP UA300. LATER, IT WAS FOUND THAT WE WERE ON THE CORRECT AIRWAY WITH BOTH THE ATC FILED AND THE COMPUTER FLT PLAN WERE UP UA300. THE CTLR ASKED IF WE HAD BEEN CLRED DIRECT PAKON. I REALLY DON'T KNOW. IF WE WERE I MISSED IT. EVEN IF WE WERE AFTER THE DEV WE WOULDN'T HAVE BEEN MUCH OFF THE AIRWAY. IF WE DID MISS THE CLRNC WHY? LANGUAGE -- CLOSE FLT NUMBERS WITH ANOTHER ACR? SWITCHING BREAKS? WHY DIDN'T THE CTLR CATCH IT IF WE WERE IN RADAR CONTACT? THANK YOU TCASII.
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.