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Air carrier B767 flight crew misinterps controller's clearance instructions and turn and climb prior to intended point for heading change. PIC admits to error and states he should have clarified control instructions.
| Attributes | |
| ACN | 410250 |
| Time | |
| Date | 199808 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : fra airport : eddf |
| State Reference | FO |
| Altitude | agl bound lower : 0 agl bound upper : 5000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : fra |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude climbout : takeoff |
| Route In Use | departure other departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 410250 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On contacting departure 120.15 they instructed us to turn heading 280 degrees at 5000 ft. Crew agreed this canceled our departure turn at 2 DME. Proceeded on heading we had at 1.5 DME. Passing through 4500 ft, departure asked if we were in the turn for the departure. PNF captain said no, must be misunderstanding. Recommendation: if clearance included words 'continue departure, then at 5000 ft turn 280 degrees,' would have understood, or we should have clarified. High workload at that point.
Original NASA ASRS Text
Title: ACR B767 FLC MISINTERPS CTLR'S CLRNC INSTRUCTIONS AND TURN AND CLB PRIOR TO INTENDED POINT FOR HDG CHANGE. PIC ADMITS TO ERROR AND STATES HE SHOULD HAVE CLARIFIED CTL INSTRUCTIONS.
Narrative: ON CONTACTING DEP 120.15 THEY INSTRUCTED US TO TURN HDG 280 DEGS AT 5000 FT. CREW AGREED THIS CANCELED OUR DEP TURN AT 2 DME. PROCEEDED ON HDG WE HAD AT 1.5 DME. PASSING THROUGH 4500 FT, DEP ASKED IF WE WERE IN THE TURN FOR THE DEP. PNF CAPT SAID NO, MUST BE MISUNDERSTANDING. RECOMMENDATION: IF CLRNC INCLUDED WORDS 'CONTINUE DEP, THEN AT 5000 FT TURN 280 DEGS,' WOULD HAVE UNDERSTOOD, OR WE SHOULD HAVE CLARIFIED. HIGH WORKLOAD AT THAT 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.