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Medium transport aircraft captain reported failure to meet a crossing restriction resulted in a clearance deviation during departure from sfo.
| Attributes | |
| ACN | 1695395 |
| Time | |
| Date | 201910 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Medium Transport |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Route In Use | SID WESLA FOUR |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 14000 Flight Crew Type 6000 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
Having accepted the wesla four SID departing runway 28R at sfo; I proceeded as directed in the SID description: climbing heading 284 to 520 feet; then direct wesla climbing through 2;000 feet at or below 230 kts; then turn left direct porte. About 2 miles prior to wesla; passing 2;000 feet; I turned left direct porte as directed in the guidance. TRACON advised that I should have continued to wesla before the turn. However; very commonly ATC clears one to proceed direct to another fix reaching a specified altitude. This is usual and customary. No one is 'at or above 2;000 feet' while proceeding direct to wesla out of 520 feet. So; the turn direct porte was entirely in keeping with the guidance as stated.the departure route description is as follows; 'takeoff runways 28L/right: climb heading 284 to 520 then direct wesla at or above 2;000 feet at or below 230 kts; then left turn direct porte.' that's what I did. Turning just before wesla reaching 2;000 feet is in keeping with standard phraseology routinely used by FAA. Should the intent be otherwise two words should be added to the route description. Those two words are: 'passing wesla' at or above 2;000 feet.'
Original NASA ASRS Text
Title: Medium Transport aircraft Captain reported failure to meet a crossing restriction resulted in a clearance deviation during departure from SFO.
Narrative: Having accepted the WESLA Four SID departing Runway 28R at SFO; I proceeded as directed in the SID description: Climbing heading 284 to 520 feet; then direct WESLA climbing through 2;000 feet at or below 230 kts; then turn left direct PORTE. About 2 miles prior to WESLA; passing 2;000 feet; I turned left direct PORTE as directed in the guidance. TRACON advised that I should have continued to WESLA before the turn. However; very commonly ATC clears one to proceed direct to another fix reaching a specified altitude. This is usual and customary. No one is 'at or above 2;000 feet' while proceeding direct to WESLA out of 520 feet. So; the turn direct PORTE was entirely in keeping with the guidance as stated.The DEPARTURE ROUTE DESCRIPTION is as follows; 'TAKEOFF RUNWAYS 28L/R: Climb heading 284 to 520 then direct WESLA at or above 2;000 feet at or below 230 kts; then left turn direct PORTE.' That's what I did. Turning just before WESLA reaching 2;000 feet is in keeping with standard phraseology routinely used by FAA. Should the intent be otherwise two words should be added to the route description. Those two words are: 'PASSING WESLA' AT OR ABOVE 2;000 feet.'
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.