Narrative:

Discussing special VFR operations with local FSS, they indicated they can clear simultaneous SVFR operations out of echo surface area (or simultaneous into) utilizing 7110.65H, 7-44b, local operations. Restricting SVFR route of flight. 7110.65H, chapter 7, section 5, paragraph 7-43, altitude assignment, is indicated as the only restr that can be applied to SVFR operations to separate SVFR from other aircraft in the surface area. Example - at a VFR tower location, SVFR aircraft #, cleared to enter surface area from the east, restricted to remain between VOR 020 degree radial clockwise to 160 degree radial. At the same time aircraft #2 cleared into surface area from the west, restricted to remain between VOR 200 degree radial clockwise to the 340 degree radial. Tower controller is anticipating they will have both aircraft insight as they approach from the east and west prior to reaching the airport. (VOR located on airport). The 2 examples listed above would result in an unsafe control operation if applied with low ceilings, also could be unsafe with certain visibility only restrs. (-X 1 1/2 F) or changing WX conditions. Only WX restr for SVFR is 1 M visibility and remain clear of clouds. The prevailing visibility at the airport could be between 1 mi to 2 1/2 mi and there could still be 2 quadrants where the visibility was less than 1 mi. Callback conversation with reporter revealed the following information: reporter stated acv FSS was the FSS that can run simultaneous operations in accordance with controller handbook. Acv facility manager stated they have a LOA with the center which defines the conditions of the FSS conducting SVFR operations.

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Original NASA ASRS Text

Title: SIMULTANEOUS SVFR OPS BY FSS IN CLASS D AIRSPACE.

Narrative: DISCUSSING SPECIAL VFR OPS WITH LCL FSS, THEY INDICATED THEY CAN CLR SIMULTANEOUS SVFR OPS OUT OF ECHO SURFACE AREA (OR SIMULTANEOUS INTO) UTILIZING 7110.65H, 7-44B, LCL OPS. RESTRICTING SVFR RTE OF FLT. 7110.65H, CHAPTER 7, SECTION 5, PARAGRAPH 7-43, ALT ASSIGNMENT, IS INDICATED AS THE ONLY RESTR THAT CAN BE APPLIED TO SVFR OPS TO SEPARATE SVFR FROM OTHER ACFT IN THE SURFACE AREA. EXAMPLE - AT A VFR TWR LOCATION, SVFR ACFT #, CLRED TO ENTER SURFACE AREA FROM THE E, RESTRICTED TO REMAIN BTWN VOR 020 DEG RADIAL CLOCKWISE TO 160 DEG RADIAL. AT THE SAME TIME ACFT #2 CLRED INTO SURFACE AREA FROM THE W, RESTRICTED TO REMAIN BTWN VOR 200 DEG RADIAL CLOCKWISE TO THE 340 DEG RADIAL. TWR CTLR IS ANTICIPATING THEY WILL HAVE BOTH ACFT INSIGHT AS THEY APCH FROM THE E AND W PRIOR TO REACHING THE ARPT. (VOR LOCATED ON ARPT). THE 2 EXAMPLES LISTED ABOVE WOULD RESULT IN AN UNSAFE CTL OP IF APPLIED WITH LOW CEILINGS, ALSO COULD BE UNSAFE WITH CERTAIN VISIBILITY ONLY RESTRS. (-X 1 1/2 F) OR CHANGING WX CONDITIONS. ONLY WX RESTR FOR SVFR IS 1 M VISIBILITY AND REMAIN CLR OF CLOUDS. THE PREVAILING VISIBILITY AT THE ARPT COULD BE BTWN 1 MI TO 2 1/2 MI AND THERE COULD STILL BE 2 QUADRANTS WHERE THE VISIBILITY WAS LESS THAN 1 MI. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED ACV FSS WAS THE FSS THAT CAN RUN SIMULTANEOUS OPS IN ACCORDANCE WITH CTLR HANDBOOK. ACV FACILITY MGR STATED THEY HAVE A LOA WITH THE CTR WHICH DEFINES THE CONDITIONS OF THE FSS CONDUCTING SVFR OPS.

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.