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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Less than standard separation. An air carrier crew stops at a lower altitude to avoid another air carrier just above them.
| Attributes | |
| ACN | 299201 |
| Time | |
| Date | 199503 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 3500 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| 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 | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 3200 flight time type : 1000 |
| ASRS Report | 299201 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 11000 |
| ASRS Report | 299202 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 800 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Pilot Deviation |
Narrative:
On departure from runway 22L at ord, our instructions were to fly heading 110 degrees and climb to 5000 ft. In our climb the captain noticed a super 80 slightly above us, converging. The captain leveled off at 3500 ft. TCASII sounded 800 ft separation. When clear of the conflict, we received new instructions from ATC. I think the super 80 departed ahead of us and was given a 090 degree heading, 25000 ft. Our climb rate was much greater and that is what caused the conflict. We should be required to fly out a certain DME then all aircraft will turn at the same point.
Original NASA ASRS Text
Title: LTSS. AN ACR CREW STOPS AT A LOWER ALT TO AVOID ANOTHER ACR JUST ABOVE THEM.
Narrative: ON DEP FROM RWY 22L AT ORD, OUR INSTRUCTIONS WERE TO FLY HDG 110 DEGS AND CLB TO 5000 FT. IN OUR CLB THE CAPT NOTICED A SUPER 80 SLIGHTLY ABOVE US, CONVERGING. THE CAPT LEVELED OFF AT 3500 FT. TCASII SOUNDED 800 FT SEPARATION. WHEN CLR OF THE CONFLICT, WE RECEIVED NEW INSTRUCTIONS FROM ATC. I THINK THE SUPER 80 DEPARTED AHEAD OF US AND WAS GIVEN A 090 DEG HDG, 25000 FT. OUR CLB RATE WAS MUCH GREATER AND THAT IS WHAT CAUSED THE CONFLICT. WE SHOULD BE REQUIRED TO FLY OUT A CERTAIN DME THEN ALL ACFT WILL TURN AT THE SAME POINT.
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.