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B767 flight crew experiences confusion flying the TRUKN1 RNAV from sfo; believing they should level at 3000 feet until trukn then climb to FL190. Nct questions their actions.
| Attributes | |
| ACN | 1235705 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID TRUKN1 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 19169 Flight Crew Type 4000 |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Experience | Flight Crew Last 90 Days 160 Flight Crew Total 13300 Flight Crew Type 5200 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
I checked in with [nct] departure out of 800 (I think) for 3000. Since we had discussed climbing to FL190 after trukn as per the TRUKN1 and crossing tydye at or above 3000 we only set 3000 feet in altitude since we did not think we were cleared to FL190 until trukn. However ATC asked us 'were you cleared to 3000 on departure?' since we had thought on ground the clearance was to FL190 after trukn I said 'yes.' then confusion set in as we wondered why ATC asked us the question. Upon further review of SID there seems to be ambiguity on when to continue climb to FL190. Again we thought it was after trukn.
Original NASA ASRS Text
Title: B767 flight crew experiences confusion flying the TRUKN1 RNAV from SFO; believing they should level at 3000 feet until TRUKN then climb to FL190. NCT questions their actions.
Narrative: I checked in with [NCT] departure out of 800 (I think) for 3000. Since we had discussed climbing to FL190 AFTER TRUKN as per the TRUKN1 and crossing TYDYE at or above 3000 we only set 3000 feet in altitude since we did not think we were cleared to FL190 UNTIL TRUKN. However ATC asked us 'were you cleared to 3000 on departure?' Since we had thought on ground the clearance was to FL190 AFTER TRUKN I said 'yes.' Then confusion set in as we wondered why ATC asked us the question. Upon further review of SID there seems to be ambiguity on WHEN to continue climb to FL190. Again we thought it was AFTER TRUKN.
Data retrieved from NASA's ASRS site 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.