 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Captain of an airbus 320 failed to make crossing restr on descent due to a misunderstanding of clearance.
| Attributes | |
| ACN | 456020 |
| Time | |
| Date | 199911 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | NJ |
| Altitude | msl bound lower : 13000 msl bound upper : 21000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : flight engineer pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 11000 flight time type : 500 |
| ASRS Report | 456020 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance non adherence other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : insufficient time none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
ATC issued descent clearance to 13000 ft from FL210. Upon crossing or just prior to crossing somto intersection at 13000 ft, controller states 'confirm crossing somto at 13000 ft.' I said 'negative, just descending to 13000 ft.' he then issued another descent to cross 5 mi north of ard at 11000 ft. We complied. Apparently the controller thought he issued somto at 13000 ft or he did issue it and I thought it was just a descent clearance to 13000 ft with no restrs. Don't really know for sure. IOE training was being given in the cockpit and distrs may have occurred in the discussion of descent modes of the airbus.
Original NASA ASRS Text
Title: CAPT OF AN AIRBUS 320 FAILED TO MAKE XING RESTR ON DSCNT DUE TO A MISUNDERSTANDING OF CLRNC.
Narrative: ATC ISSUED DSCNT CLRNC TO 13000 FT FROM FL210. UPON XING OR JUST PRIOR TO XING SOMTO INTXN AT 13000 FT, CTLR STATES 'CONFIRM XING SOMTO AT 13000 FT.' I SAID 'NEGATIVE, JUST DSNDING TO 13000 FT.' HE THEN ISSUED ANOTHER DSCNT TO CROSS 5 MI N OF ARD AT 11000 FT. WE COMPLIED. APPARENTLY THE CTLR THOUGHT HE ISSUED SOMTO AT 13000 FT OR HE DID ISSUE IT AND I THOUGHT IT WAS JUST A DSCNT CLRNC TO 13000 FT WITH NO RESTRS. DON'T REALLY KNOW FOR SURE. IOE TRAINING WAS BEING GIVEN IN THE COCKPIT AND DISTRS MAY HAVE OCCURRED IN THE DISCUSSION OF DSCNT MODES OF THE AIRBUS.
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.