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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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| Attributes | |
| ACN | 131423 |
| Time | |
| Date | 198912 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dqn airport : cvg |
| State Reference | OH |
| Altitude | msl bound lower : 21000 msl bound upper : 21800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute airway : zid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 240 flight time total : 9500 flight time type : 1500 |
| ASRS Report | 131423 |
| 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 controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure |
Narrative:
During climb out from cvg, ZID cleared us to FL230. This clearance was subsequently amended to maintain FL220. We were then given a frequency change to 134.8. The new controller directed us to maintain FL210. I replied that we were unable to comply as we were already through FL210. The controller replied, 'then descend and maintain FL210, traffic 11 O'clock at FL220.' we were at a high rate of climb due to low OAT and light gross weight. As a result, altitude reached 21800' before the captain was able to push nose over and begin descent. Contributing factors: 1) poor coordination between sectors at ZID. 2) high climb rate due to very cold temperatures, unusual for this early in winter. 3) controllers not trained in aerodynamics/flight characteristics of turbo jet aircraft.
Original NASA ASRS Text
Title: ACR MLG OVERSHOT AMENDED CLRNC ALT ASSIGNMENT BECAUSE IT WAS GIVEN LATE.
Narrative: DURING CLBOUT FROM CVG, ZID CLRED US TO FL230. THIS CLRNC WAS SUBSEQUENTLY AMENDED TO MAINTAIN FL220. WE WERE THEN GIVEN A FREQ CHANGE TO 134.8. THE NEW CTLR DIRECTED US TO MAINTAIN FL210. I REPLIED THAT WE WERE UNABLE TO COMPLY AS WE WERE ALREADY THROUGH FL210. THE CTLR REPLIED, 'THEN DSND AND MAINTAIN FL210, TFC 11 O'CLOCK AT FL220.' WE WERE AT A HIGH RATE OF CLB DUE TO LOW OAT AND LIGHT GROSS WT. AS A RESULT, ALT REACHED 21800' BEFORE THE CAPT WAS ABLE TO PUSH NOSE OVER AND BEGIN DSCNT. CONTRIBUTING FACTORS: 1) POOR COORD BTWN SECTORS AT ZID. 2) HIGH CLB RATE DUE TO VERY COLD TEMPS, UNUSUAL FOR THIS EARLY IN WINTER. 3) CTLRS NOT TRAINED IN AERODYNAMICS/FLT CHARACTERISTICS OF TURBO JET ACFT.
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.