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An air carrier B767 flight crew reports an encounter with an air carrier DC10 100 NM east of chs. They both saw the other aircraft and acquired it on their TCASII and they stopped their climb at FL375 to avoid, but the controller said that it was well clear at FL410.
| Attributes | |
| ACN | 379970 |
| Time | |
| Date | 199709 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : chs |
| State Reference | SC |
| Altitude | msl bound lower : 37500 msl bound upper : 39000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute : atlantic enroute : other oceanic |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : atlantic enroute : other oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 4000 |
| ASRS Report | 379970 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 1500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
On climb from FL350 to FL390 converging traffic was spotted visually and on TCASII at FL390. We stopped climb at FL375 and descended while calling ZJX who had us in radar contact. They said the other aircraft was at FL410 not FL390. We waited until clear and continued our climb. The aircraft did appear to be at FL390 however, and our TCASII equipment was working normally. This occurred 100 mi from chs on a flight from txkf.
Original NASA ASRS Text
Title: AN ACR B767 FLC RPTS AN ENCOUNTER WITH AN ACR DC10 100 NM E OF CHS. THEY BOTH SAW THE OTHER ACFT AND ACQUIRED IT ON THEIR TCASII AND THEY STOPPED THEIR CLB AT FL375 TO AVOID, BUT THE CTLR SAID THAT IT WAS WELL CLR AT FL410.
Narrative: ON CLB FROM FL350 TO FL390 CONVERGING TFC WAS SPOTTED VISUALLY AND ON TCASII AT FL390. WE STOPPED CLB AT FL375 AND DSNDED WHILE CALLING ZJX WHO HAD US IN RADAR CONTACT. THEY SAID THE OTHER ACFT WAS AT FL410 NOT FL390. WE WAITED UNTIL CLR AND CONTINUED OUR CLB. THE ACFT DID APPEAR TO BE AT FL390 HOWEVER, AND OUR TCASII EQUIP WAS WORKING NORMALLY. THIS OCCURRED 100 MI FROM CHS ON A FLT FROM TXKF.
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.