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ZID controller experienced operational error at FL290 during vectors for separation between a DC9 and an MD80.
| Attributes | |
| ACN | 618120 |
| Time | |
| Date | 200405 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : rod.vortac |
| State Reference | OH |
| Altitude | msl bound lower : 29000 msl bound upper : 31000 |
| Environment | |
| Weather Elements | other |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude climbout : vacating altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level cruise : enroute altitude change |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : developmental |
| Experience | controller limited radar : 5 controller military : 5 controller radar : 1 |
| ASRS Report | 618120 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance |
| Miss Distance | horizontal : 24000 vertical : 1800 |
| Supplementary | |
| Problem Areas | ATC Human Performance Weather |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
DC9 departed detroit climbing sbound. I climbed him to FL330 and turned 15 degree right. MD80 nwbound at FL310. Turned MD80 20 degrees right to stay behind DC9. Gave additional turns to each aircraft. DC9 slowed to increase climb rate. I descended MD80 to FL290. MD80 sped up (winds out of south). To prevent the situation, bigger turns earlier to both aircraft.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED OPERROR AT FL290 DURING VECTORS FOR SEPARATION BTWN A DC9 AND AN MD80.
Narrative: DC9 DEPARTED DETROIT CLBING SBOUND. I CLBED HIM TO FL330 AND TURNED 15 DEG R. MD80 NWBOUND AT FL310. TURNED MD80 20 DEGS R TO STAY BEHIND DC9. GAVE ADDITIONAL TURNS TO EACH ACFT. DC9 SLOWED TO INCREASE CLB RATE. I DSNDED MD80 TO FL290. MD80 SPED UP (WINDS OUT OF S). TO PREVENT THE SIT, BIGGER TURNS EARLIER TO BOTH ACFT.
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.