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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Altitude deviation altitude overshot - flight crew was initially given a higher altitude on climb out, but at the last moment the departure controller remembered that he had cleared another aircraft through the same airspace at the same time. The controller called for an instant leveloff and the flight crew overshot, but remained clear of the other aircraft.
| Attributes | |
| ACN | 301167 |
| Time | |
| Date | 199504 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dca |
| State Reference | DC |
| Altitude | msl bound lower : 5000 msl bound upper : 5250 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dca |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 17800 flight time type : 3300 |
| ASRS Report | 301167 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 15000 vertical : 750 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
During a northwest visual river departure to join 328 degree right dca VOR climbing to 5000 ft, switched over to departure control and were cleared to 9000 ft. Copilot pointed out traffic at 1 O'clock above closing right to left. Passing 4800 ft ATC called 'maintain 5000 ft.' TCASII TA target appeared at 1 O'clock. A pushover with 30 degree right bank toward rear of the target (visual) resulted in a 250 ft overshoot and return to 5000 ft as traffic passed in front of us approximately 2 1/2 mi. I estimate our vertical speed at 2000 plus ft at the time of contact sighting. We did not get a TCASII rr. The other aircraft was at 6000 ft under positive control with instructions to maintain a visual on us. This was determined later by phone to ATC, and that our controller had forgotten about the 6000 ft traffic when he cleared us to 9000 ft and remembered and call to stop us at 5000 ft. The controller was very busy and seemed to be behind.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOT - FLC WAS INITIALLY GIVEN A HIGHER ALT ON CLBOUT, BUT AT THE LAST MOMENT THE DEP CTLR REMEMBERED THAT HE HAD CLRED ANOTHER ACFT THROUGH THE SAME AIRSPACE AT THE SAME TIME. THE CTLR CALLED FOR AN INSTANT LEVELOFF AND THE FLC OVERSHOT, BUT REMAINED CLR OF THE OTHER ACFT.
Narrative: DURING A NW VISUAL RIVER DEP TO JOIN 328 DEG R DCA VOR CLBING TO 5000 FT, SWITCHED OVER TO DEP CTL AND WERE CLRED TO 9000 FT. COPLT POINTED OUT TFC AT 1 O'CLOCK ABOVE CLOSING R TO L. PASSING 4800 FT ATC CALLED 'MAINTAIN 5000 FT.' TCASII TA TARGET APPEARED AT 1 O'CLOCK. A PUSHOVER WITH 30 DEG R BANK TOWARD REAR OF THE TARGET (VISUAL) RESULTED IN A 250 FT OVERSHOOT AND RETURN TO 5000 FT AS TFC PASSED IN FRONT OF US APPROX 2 1/2 MI. I ESTIMATE OUR VERT SPD AT 2000 PLUS FT AT THE TIME OF CONTACT SIGHTING. WE DID NOT GET A TCASII RR. THE OTHER ACFT WAS AT 6000 FT UNDER POSITIVE CTL WITH INSTRUCTIONS TO MAINTAIN A VISUAL ON US. THIS WAS DETERMINED LATER BY PHONE TO ATC, AND THAT OUR CTLR HAD FORGOTTEN ABOUT THE 6000 FT TFC WHEN HE CLRED US TO 9000 FT AND REMEMBERED AND CALL TO STOP US AT 5000 FT. THE CTLR WAS VERY BUSY AND SEEMED TO BE BEHIND.
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.