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SF340-B copied clearance to turn right 260 degrees, slow 180 KTS, descend to 5000 ft. Acknowledged with full readback. Leaving 6600 ft, controller advised climb immediately to 7000 ft. Possible misunderstanding of clearance.
| Attributes | |
| ACN | 366443 |
| Time | |
| Date | 199704 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 6600 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : dca |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340B |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 60 flight time total : 8200 flight time type : 155 |
| ASRS Report | 366443 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 2100 flight time type : 200 |
| ASRS Report | 366310 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : far non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Our aircraft was level at 8000 ft MSL when given a clearance to turn right to a heading of 250 degrees then slow to 180 KIAS, then to descend and maintain 5000 ft MSL. (This clearance was read back in its entirety.) while descending through 6600 ft MSL, the controller (TRACON) told us to climb immediately to 7000 ft MSL. We complied with that clearance. No conflicts were noted. Contributing factors: 1) multiple task clearance given during a very busy time in cockpit. 2) failure of crew to hear possibly correct or incorrect clearance. 3) the possibility of controller to correct an inaccurate readback of a clearance. Controller workload too high!
Original NASA ASRS Text
Title: SF340-B COPIED CLRNC TO TURN R 260 DEGS, SLOW 180 KTS, DSND TO 5000 FT. ACKNOWLEDGED WITH FULL READBACK. LEAVING 6600 FT, CTLR ADVISED CLB IMMEDIATELY TO 7000 FT. POSSIBLE MISUNDERSTANDING OF CLRNC.
Narrative: OUR ACFT WAS LEVEL AT 8000 FT MSL WHEN GIVEN A CLRNC TO TURN R TO A HDG OF 250 DEGS THEN SLOW TO 180 KIAS, THEN TO DSND AND MAINTAIN 5000 FT MSL. (THIS CLRNC WAS READ BACK IN ITS ENTIRETY.) WHILE DSNDING THROUGH 6600 FT MSL, THE CTLR (TRACON) TOLD US TO CLB IMMEDIATELY TO 7000 FT MSL. WE COMPLIED WITH THAT CLRNC. NO CONFLICTS WERE NOTED. CONTRIBUTING FACTORS: 1) MULTIPLE TASK CLRNC GIVEN DURING A VERY BUSY TIME IN COCKPIT. 2) FAILURE OF CREW TO HEAR POSSIBLY CORRECT OR INCORRECT CLRNC. 3) THE POSSIBILITY OF CTLR TO CORRECT AN INACCURATE READBACK OF A CLRNC. CTLR WORKLOAD TOO HIGH!
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.