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Air carrier captain reported being issued taxi instructions in at sea airport to hold at a geographic position marking that is not depicted on the normal sea airport taxi diagram. Reporter suggested that the marking which appears only on the low visibility chart should not be used in taxi clearances when airport is not in low visibility conditions.
| Attributes | |
| ACN | 1745909 |
| Time | |
| Date | 202006 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | SEA.Airport |
| State Reference | WA |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 143 Flight Crew Total 9100 Flight Crew Type 2500 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence |
Narrative:
After vacating on runway 16L at sea; we have to hold on the taxiway because our assigned gate [was] still occupied. At that time; we were talking to sea south ramp controller and controller instructed us to hold position after joining parallel taxiway B on geographic position marking 16 that is for low visibility condition and it is not depicted on the normal taxi chart. So; we had experienced difficulties to find that position.I suggest that geographic position markings need to be depicted on the normal ground chart if it is going to be used via controller or; not in low visibility condition; the geographic position mark should not be used for ATC purposes. Sea is unfamiliar airport for us.
Original NASA ASRS Text
Title: Air carrier Captain reported being issued taxi instructions in at SEA airport to hold at a geographic position marking that is not depicted on the normal SEA airport taxi diagram. Reporter suggested that the marking which appears only on the low visibility chart should not be used in taxi clearances when airport is not in low visibility conditions.
Narrative: After vacating on Runway 16L at SEA; we have to hold on the taxiway because our assigned gate [was] still occupied. At that time; we were talking to SEA South Ramp Controller and Controller instructed us to hold position after joining parallel Taxiway B on geographic position marking 16 that is for low visibility condition and it is not depicted on the normal taxi chart. So; we had experienced difficulties to find that position.I suggest that geographic position markings need to be depicted on the normal ground chart if it is going to be used via Controller or; not in low visibility condition; the geographic position mark should not be used for ATC purposes. SEA is unfamiliar airport for us.
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.