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Air carrier on approach must take evasive action to avoid small transport sequenced ahead with no advisory.
| Attributes | |
| ACN | 198608 |
| Time | |
| Date | 199201 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sna |
| State Reference | CA |
| Altitude | msl bound lower : 700 msl bound upper : 700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : sna tower : sna |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent : approach landing : go around |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | descent : approach |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 7200 flight time type : 600 |
| ASRS Report | 198608 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 100 vertical : 50 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
We were cleared for a visual approach by approach control to runway 19R. Our traffic was an small aircraft on a 2 mi final. We proceeded to fly a visual pattern to 19R, turning final approximately 4 mi from the runway. Unknown to us, the tower has cleared the small aircraft to land on 19L and has sequenced an small transport to land on 19R ahead of us. We contacted tower and they clear us to land on 19R. Tower then instructs the small transport to go around and make right traffic. Shortly after this we see the small transport in a climbing right hand turn, in between the nose and left wing of our airplane. We take evasive action and go around. I believe the tower saturated with light airplane traffic and tried to relieve this by using both runways for general aviation. I don't believe that this is safe in an area with this much traffic. Communications were difficult to make and hear with so many aircraft on the frequency. Tower had no time to alert us about small transport traffic, or even coordination our progress with the slower traffic. TCASII was no help with there being at least 6 targets, you have to be outside the cockpit. The warnings only add to the confusion during this phase of the flight.
Original NASA ASRS Text
Title: ACR ON APCH MUST TAKE EVASIVE ACTION TO AVOID SMT SEQUENCED AHEAD WITH NO ADVISORY.
Narrative: WE WERE CLRED FOR A VISUAL APCH BY APCH CTL TO RWY 19R. OUR TFC WAS AN SMA ON A 2 MI FINAL. WE PROCEEDED TO FLY A VISUAL PATTERN TO 19R, TURNING FINAL APPROX 4 MI FROM THE RWY. UNKNOWN TO US, THE TWR HAS CLRED THE SMA TO LAND ON 19L AND HAS SEQUENCED AN SMT TO LAND ON 19R AHEAD OF US. WE CONTACTED TWR AND THEY CLR US TO LAND ON 19R. TWR THEN INSTRUCTS THE SMT TO GAR AND MAKE R TFC. SHORTLY AFTER THIS WE SEE THE SMT IN A CLBING R HAND TURN, IN BTWN THE NOSE AND L WING OF OUR AIRPLANE. WE TAKE EVASIVE ACTION AND GAR. I BELIEVE THE TWR SATURATED WITH LIGHT AIRPLANE TFC AND TRIED TO RELIEVE THIS BY USING BOTH RWYS FOR GENERAL AVIATION. I DON'T BELIEVE THAT THIS IS SAFE IN AN AREA WITH THIS MUCH TFC. COMS WERE DIFFICULT TO MAKE AND HEAR WITH SO MANY ACFT ON THE FREQ. TWR HAD NO TIME TO ALERT US ABOUT SMT TFC, OR EVEN COORD OUR PROGRESS WITH THE SLOWER TFC. TCASII WAS NO HELP WITH THERE BEING AT LEAST 6 TARGETS, YOU HAVE TO BE OUTSIDE THE COCKPIT. THE WARNINGS ONLY ADD TO THE CONFUSION DURING THIS PHASE OF THE FLT.
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.