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Pilot complaint of czn and overlapping atas and lack of interfacility coordination for SVFR flight into a non approach control airport when WX mins are marginal VFR.
| Attributes | |
| ACN | 200301 |
| Time | |
| Date | 199201 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : sjc airport : pao |
| State Reference | CA |
| Altitude | msl bound lower : 500 msl bound upper : 500 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak tower : sjc tower : nuq |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | cruise other cruise other descent : approach |
| Route In Use | enroute : direct enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 50 flight time total : 850 flight time type : 750 |
| ASRS Report | 200301 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | inflight encounter : vfr in imc inflight encounter : weather non adherence : published procedure non adherence : far other anomaly other other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
On a routine IFR/IMC flight to pao from aun, unexpected, unforcasted WX changes precipitated several ATIS changes in less than 15 min span of time. Obtained briefing and special observations from destination as VFR. Filed IFR and flew IMC to 20 NM of destination. ATIS at location advise VFR. ATC controller (bay approach 135.4) refused visual approach and requested intentions. Pilot requested clearance to sjc for ILS. On approach 120.1, ATC advised pao was VFR. Pilot requested low approach to sjc, reporting VFR conditions at sjc. Sjc ATIS reports VFR conditions. Upon completion of low approach, tower sjc clears pilot out of czn and request cancellation of IFR. IFR cancelled to SVFR to moffett tower advises IFR conditions while sjc/pao advise VFR. Fog with no ceiling visibility 1-2 1/2 mi. Overlap of sjc/moffett/pao czn would allow SVFR of 1 mi visibility/clear. Moffett controller refuses SVFR and I requested conditions repeatedly. After 3 VFR reports by pilot. Apparently indicating a potential VFR bust. Problem is conflicting ATIS information at approach/tower in 10 mi locality. Human performance: pilot over confident of routine approach to a VFR/VMC landing condition airport in min visibility.
Original NASA ASRS Text
Title: PLT COMPLAINT OF CZN AND OVERLAPPING ATAS AND LACK OF INTERFAC COORD FOR SVFR FLT INTO A NON APCH CTL ARPT WHEN WX MINS ARE MARGINAL VFR.
Narrative: ON A ROUTINE IFR/IMC FLT TO PAO FROM AUN, UNEXPECTED, UNFORCASTED WX CHANGES PRECIPITATED SEVERAL ATIS CHANGES IN LESS THAN 15 MIN SPAN OF TIME. OBTAINED BRIEFING AND SPECIAL OBSERVATIONS FROM DEST AS VFR. FILED IFR AND FLEW IMC TO 20 NM OF DEST. ATIS AT LOCATION ADVISE VFR. ATC CTLR (BAY APCH 135.4) REFUSED VISUAL APCH AND REQUESTED INTENTIONS. PLT REQUESTED CLRNC TO SJC FOR ILS. ON APCH 120.1, ATC ADVISED PAO WAS VFR. PLT REQUESTED LOW APCH TO SJC, RPTING VFR CONDITIONS AT SJC. SJC ATIS RPTS VFR CONDITIONS. UPON COMPLETION OF LOW APCH, TWR SJC CLRS PLT OUT OF CZN AND REQUEST CANCELLATION OF IFR. IFR CANCELLED TO SVFR TO MOFFETT TWR ADVISES IFR CONDITIONS WHILE SJC/PAO ADVISE VFR. FOG WITH NO CEILING VISIBILITY 1-2 1/2 MI. OVERLAP OF SJC/MOFFETT/PAO CZN WOULD ALLOW SVFR OF 1 MI VISIBILITY/CLR. MOFFETT CTLR REFUSES SVFR AND I REQUESTED CONDITIONS REPEATEDLY. AFTER 3 VFR RPTS BY PLT. APPARENTLY INDICATING A POTENTIAL VFR BUST. PROBLEM IS CONFLICTING ATIS INFO AT APCH/TWR IN 10 MI LOCALITY. HUMAN PERFORMANCE: PLT OVER CONFIDENT OF ROUTINE APCH TO A VFR/VMC LNDG CONDITION ARPT IN MIN VISIBILITY.
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.