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Flight crew of widebody transport departing jfk understood that they were cleared to 15000', but passing through 11300; the controller informed them that they were supposedly told to maintain 11000'.
| Attributes | |
| ACN | 140202 |
| Time | |
| Date | 199003 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : jfk |
| State Reference | NY |
| Altitude | msl bound lower : 11000 msl bound upper : 11500 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 tower : pit |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other enroute airway : n90 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 15000 flight time type : 1075 |
| ASRS Report | 140202 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Originally cleared to 5000'. Departure cleared us up to 15000', which was fully read back. At 11300' climbing ATC asked if maintaining 11000'. Closed throttles, descended to 11000' immediately and then stated that we had been cleared to 15000'. I am about 95% certain that cleared altitude was 15000', but am not requesting ATC tapes, since there is a reasonable chance that there will be no further FAA investigation. To the best of my knowledge no other aircraft were involved. Comments: 1) the best solution to the misunderstanding is a data-link transfer. 2) the system does not allow open investigation, since this might cause disciplinary action for the individuals who report the incident.
Original NASA ASRS Text
Title: FLT CREW OF WDB DEPARTING JFK UNDERSTOOD THAT THEY WERE CLEARED TO 15000', BUT PASSING THROUGH 11300; THE CTLR INFORMED THEM THAT THEY WERE SUPPOSEDLY TOLD TO MAINTAIN 11000'.
Narrative: ORIGINALLY CLRED TO 5000'. DEP CLRED US UP TO 15000', WHICH WAS FULLY READ BACK. AT 11300' CLBING ATC ASKED IF MAINTAINING 11000'. CLOSED THROTTLES, DSNDED TO 11000' IMMEDIATELY AND THEN STATED THAT WE HAD BEEN CLRED TO 15000'. I AM ABOUT 95% CERTAIN THAT CLRED ALT WAS 15000', BUT AM NOT REQUESTING ATC TAPES, SINCE THERE IS A REASONABLE CHANCE THAT THERE WILL BE NO FURTHER FAA INVESTIGATION. TO THE BEST OF MY KNOWLEDGE NO OTHER ACFT WERE INVOLVED. COMMENTS: 1) THE BEST SOLUTION TO THE MISUNDERSTANDING IS A DATA-LINK TRANSFER. 2) THE SYS DOES NOT ALLOW OPEN INVESTIGATION, SINCE THIS MIGHT CAUSE DISCIPLINARY ACTION FOR THE INDIVIDUALS WHO RPT THE INCIDENT.
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.