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First officer of a B737-400 concern about airspace structure going from class C to class G airspace nearby a major ILS approach at sna airport.
| Attributes | |
| ACN | 485481 |
| Time | |
| Date | 200009 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sna.airport |
| State Reference | CA |
| Altitude | msl single value : 3300 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon tower : sna.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 19r |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 3500 flight time type : 1000 |
| ASRS Report | 485481 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Airspace Structure |
| Primary Problem | Airspace Structure |
| Situations | |
| Airspace Structure | class c : sna.c |
Narrative:
No collision has occurred, but I believe the potential for an near midair collision exists in the vicinity of sna and el toro airfield. Recently, the FAA changed the class C airspace to class G airspace. This potentially fatal decision exposes the ILS runway 19R approach to sna to the collision hazard. The possibility exists to have non transponder equipped aircraft mixing with IFR aircraft on the approach to runway 19R in the area of snake and lemon intxns. I believe it is only a matter of time before a collision occurs between a commercial airliner and a non transponder equipped aircraft.
Original NASA ASRS Text
Title: FO OF A B737-400 CONCERN ABOUT AIRSPACE STRUCTURE GOING FROM CLASS C TO CLASS G AIRSPACE NEARBY A MAJOR ILS APCH AT SNA ARPT.
Narrative: NO COLLISION HAS OCCURRED, BUT I BELIEVE THE POTENTIAL FOR AN NMAC EXISTS IN THE VICINITY OF SNA AND EL TORO AIRFIELD. RECENTLY, THE FAA CHANGED THE CLASS C AIRSPACE TO CLASS G AIRSPACE. THIS POTENTIALLY FATAL DECISION EXPOSES THE ILS RWY 19R APCH TO SNA TO THE COLLISION HAZARD. THE POSSIBILITY EXISTS TO HAVE NON XPONDER EQUIPPED ACFT MIXING WITH IFR ACFT ON THE APCH TO RWY 19R IN THE AREA OF SNAKE AND LEMON INTXNS. I BELIEVE IT IS ONLY A MATTER OF TIME BEFORE A COLLISION OCCURS BTWN A COMMERCIAL AIRLINER AND A NON XPONDER EQUIPPED ACFT.
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.