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ZOA challenges B757-200 flight crew observing a turn towards lin VORTAC from over sjc when cleared via lin transition. Captain states too many parts of clearance to get wrong.
| Attributes | |
| ACN | 514730 |
| Time | |
| Date | 200106 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : sjc.vor |
| State Reference | CA |
| Altitude | msl bound lower : 12000 msl bound upper : 15000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Flight Phase | climbout : intermediate altitude climbout : initial ground : takeoff roll |
| Route In Use | departure sid : loupe 9 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 514730 |
| Events | |
| Anomaly | non adherence : published procedure non adherence : clearance other spatial deviation |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : became reoriented flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On loupe departure out of sjc, we were cleared to climb to 12000 ft and cross sjc VOR. Subsequent to that, we were then cleared to cross sjc VOR at or above 12000 ft and maintain 15000 ft, and (we thought) direct linden VOR. As we were by now nearly over sjc, we thought it logical to go direct lin. We switched frequency to ZOA who asked us where we were going, as we were not on the loupe 9 at this time. We were then vectored to dyblo intersection on the loupe 9 for the remainder of the departure. We think the departure controller may have said linden transition rather than direct linden and therefore the miscom. We would suggest not giving 4 or 5 part clrncs with so many instructions in one clearance.
Original NASA ASRS Text
Title: ZOA CHALLENGES B757-200 FLT CREW OBSERVING A TURN TOWARDS LIN VORTAC FROM OVER SJC WHEN CLRED VIA LIN TRANSITION. CAPT STATES TOO MANY PARTS OF CLRNC TO GET WRONG.
Narrative: ON LOUPE DEP OUT OF SJC, WE WERE CLRED TO CLB TO 12000 FT AND CROSS SJC VOR. SUBSEQUENT TO THAT, WE WERE THEN CLRED TO CROSS SJC VOR AT OR ABOVE 12000 FT AND MAINTAIN 15000 FT, AND (WE THOUGHT) DIRECT LINDEN VOR. AS WE WERE BY NOW NEARLY OVER SJC, WE THOUGHT IT LOGICAL TO GO DIRECT LIN. WE SWITCHED FREQ TO ZOA WHO ASKED US WHERE WE WERE GOING, AS WE WERE NOT ON THE LOUPE 9 AT THIS TIME. WE WERE THEN VECTORED TO DYBLO INTXN ON THE LOUPE 9 FOR THE REMAINDER OF THE DEP. WE THINK THE DEP CTLR MAY HAVE SAID LINDEN TRANSITION RATHER THAN DIRECT LINDEN AND THEREFORE THE MISCOM. WE WOULD SUGGEST NOT GIVING 4 OR 5 PART CLRNCS WITH SO MANY INSTRUCTIONS IN ONE CLRNC.
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.