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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Medium large transport flight crew climbs above crossing restr on SID. Misinterprets further clearance from departure control as indicating at or above.
| Attributes | |
| ACN | 346770 |
| Time | |
| Date | 199609 |
| Place | |
| Locale Reference | airport : sjc |
| State Reference | CA |
| Altitude | msl bound lower : 12000 msl bound upper : 13000 |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak tower : lga |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 100 flight time total : 3500 flight time type : 400 |
| ASRS Report | 346770 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After rolling out on the 120 degree heading on the loupe nine, the controller told us to turn towards the VOR at our discretion as long as we could cross it at 12000 ft, and to climb and maintain some other altitude (can't remember it specifically). We interpreted this to mean cross sjc at or above 12000 ft, rather than at 12000 ft as specified in the SID. We were handed off approaching the VOR and crossed the VOR about 13000 ft. The new controller apparently had expected us to cross sjc at 12000 ft.
Original NASA ASRS Text
Title: MLG FLC CLBS ABOVE XING RESTR ON SID. MISINTERPRETS FURTHER CLRNC FROM DEP CTL AS INDICATING AT OR ABOVE.
Narrative: AFTER ROLLING OUT ON THE 120 DEG HDG ON THE LOUPE NINE, THE CTLR TOLD US TO TURN TOWARDS THE VOR AT OUR DISCRETION AS LONG AS WE COULD CROSS IT AT 12000 FT, AND TO CLB AND MAINTAIN SOME OTHER ALT (CAN'T REMEMBER IT SPECIFICALLY). WE INTERPRETED THIS TO MEAN CROSS SJC AT OR ABOVE 12000 FT, RATHER THAN AT 12000 FT AS SPECIFIED IN THE SID. WE WERE HANDED OFF APCHING THE VOR AND CROSSED THE VOR ABOUT 13000 FT. THE NEW CTLR APPARENTLY HAD EXPECTED US TO CROSS SJC AT 12000 FT.
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.