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B757 captain noted that the final portion of the SERFR1 arrival at sfo has aircraft flying very close to the bottom of the class B airspace and the 230 knot restriction at menlo at 4;000 feet conflicts with the requirement to be at 200 knots below 4;000.
| Attributes | |
| ACN | 1259092 |
| Time | |
| Date | 201505 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | NCT.TRACON |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B757 Undifferentiated or Other Model |
| Flight Phase | Descent |
| Route In Use | SID SERFR ONE |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 17800 Flight Crew Type 7050 |
| Events | |
| Anomaly | No Specific Anomaly Occurred All Types |
Narrative:
While on arrival into sfo on the new serfr 1 arrival; I realized in the briefing that on the last portion of the arrival (eddyy; swels; and menlo); you are on the edge of the bottom of the class B airspace. If the arrival is modified at all by ATC; it is possible to go below the altitudes if given a lower altitude. 230 knots seems fast at menlo at 4;000 feet when 200 knots is required below 4;000. Why not make 200 knots the speed at the 3 last RNAV fixes. It would prepare the transition smoother to either an ILS or tiptoe visual approach.
Original NASA ASRS Text
Title: B757 Captain noted that the final portion of the SERFR1 Arrival at SFO has aircraft flying very close to the bottom of the Class B airspace and the 230 knot restriction at MENLO at 4;000 feet conflicts with the requirement to be at 200 knots below 4;000.
Narrative: While on arrival into SFO on the new SERFR 1 Arrival; I realized in the briefing that on the last portion of the arrival (EDDYY; SWELS; and MENLO); you are on the edge of the bottom of the Class B airspace. If the arrival is modified at all by ATC; it is possible to go below the altitudes if given a lower altitude. 230 knots seems fast at MENLO at 4;000 feet when 200 knots is required below 4;000. Why not make 200 knots the speed at the 3 last RNAV fixes. It would prepare the transition smoother to either an ILS or Tiptoe visual approach.
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.