 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Less than standard separation between supplemental carrier and foreign air carrier. Operational error.
| Attributes | |
| ACN | 99966 |
| Time | |
| Date | 198812 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : huo |
| State Reference | NY |
| Altitude | msl bound lower : 30500 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | Heavy Transport, Low Wing, 4 Turbojet Eng |
| Flight Phase | cruise other descent other |
| Route In Use | enroute : direct enroute airway : j95 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 17 |
| ASRS Report | 99966 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other other : unspecified atc |
| Resolutory Action | controller : issued new clearance none taken : unable none taken : insufficient time |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 24000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Supplemental air carrier X was cleared from the vicinity of ipt direct ign and a judds 2 arrival to bdl at FL370. Foreign air carrier Y was flying J95 to buf climbing to FL310. After X was in the sector I descended him to FL240. Later I amended his clearance to FL290 for crossing traffic. I then turned X 20 degree left for air carrier Z. When he was clear of Z. I again cleared X direct ign. Conflict alert went off between X and Y. I leveled X at FL320. I turned Y 30 degree right. I then descended Y to FL290, but I called Y by wrong trip number by mistake. I turned X 30 degree right, and went back and gave Y a descent clearance to FL290. I did not see that Y would be traffic for X. After I had to vector X around Z, I should have leveled Y at FL280 until I was sure he was clear of X.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION BETWEEN SUPPLEMENTAL CARRIER AND FOREIGN ACR. OPERATIONAL ERROR.
Narrative: SUPPLEMENTAL ACR X WAS CLRED FROM THE VICINITY OF IPT DIRECT IGN AND A JUDDS 2 ARR TO BDL AT FL370. FOREIGN ACR Y WAS FLYING J95 TO BUF CLBING TO FL310. AFTER X WAS IN THE SECTOR I DSNDED HIM TO FL240. LATER I AMENDED HIS CLRNC TO FL290 FOR XING TFC. I THEN TURNED X 20 DEG LEFT FOR ACR Z. WHEN HE WAS CLR OF Z. I AGAIN CLRED X DIRECT IGN. CONFLICT ALERT WENT OFF BETWEEN X AND Y. I LEVELED X AT FL320. I TURNED Y 30 DEG RIGHT. I THEN DESCENDED Y TO FL290, BUT I CALLED Y BY WRONG TRIP NUMBER BY MISTAKE. I TURNED X 30 DEG RIGHT, AND WENT BACK AND GAVE Y A DESCENT CLRNC TO FL290. I DID NOT SEE THAT Y WOULD BE TFC FOR X. AFTER I HAD TO VECTOR X AROUND Z, I SHOULD HAVE LEVELED Y AT FL280 UNTIL I WAS SURE HE WAS CLR OF X.
Data retrieved from NASA's ASRS site as of August 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.