 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Near midair collision avoided as small aircraft instructor pilot has traffic sighted and air carrier PIC executes an evasive action climb as small aircraft executes evasive action dive. TCASII RA saves the day again. See and avoid concept not always there for both aircraft.
| Attributes | |
| ACN | 209491 |
| Time | |
| Date | 199205 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : sjc |
| State Reference | CA |
| Altitude | msl bound lower : 6000 msl bound upper : 6500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | None |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 7400 flight time type : 2000 |
| ASRS Report | 209491 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : student |
| Events | |
| Anomaly | conflict : nmac non adherence : far other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Dual cross country private pilot training VFR flight sns-lvk. Established radio and radar contact with bay approach on 120.1. First call was '2-3 mi west of gilroy.' student performed radio communication. Transponder code assigned by ATC. During entire period of contact, no TA's were issued to us. Reaching approximately 15 southeast of sjc, bay approach called traffic to incoming air carrier aircraft to sjc. Realizing that we were probably the traffic, I turned to scan. At approximately 5 O'clock position, there was an airline jet at our altitude closing rapidly. After 1 to 2 seconds, I took controls, turned right and dove to about 6000 ft. Either at this time or very shortly thereafter, crew of jet told ATC, 'TCASII alert, we are climbing.' jet cleared us west of original track and above. We resumed course and altitude. Am unsure whether jet aircraft ever established visual contact with us. Bay approach should have recognized potential conflict and resolved it. Issuance of traffic to jet was almost too late to be useful. This is not satisfactory performance.
Original NASA ASRS Text
Title: NMAC AVOIDED AS SMA INSTRUCTOR PLT HAS TFC SIGHTED AND ACR PIC EXECUTES AN EVASIVE ACTION CLB AS SMA EXECUTES EVASIVE ACTION DIVE. TCASII RA SAVES THE DAY AGAIN. SEE AND AVOID CONCEPT NOT ALWAYS THERE FOR BOTH ACFT.
Narrative: DUAL XCOUNTRY PRIVATE PLT TRAINING VFR FLT SNS-LVK. ESTABLISHED RADIO AND RADAR CONTACT WITH BAY APCH ON 120.1. FIRST CALL WAS '2-3 MI W OF GILROY.' STUDENT PERFORMED RADIO COM. TRANSPONDER CODE ASSIGNED BY ATC. DURING ENTIRE PERIOD OF CONTACT, NO TA'S WERE ISSUED TO US. REACHING APPROX 15 SE OF SJC, BAY APCH CALLED TFC TO INCOMING ACR ACFT TO SJC. REALIZING THAT WE WERE PROBABLY THE TFC, I TURNED TO SCAN. AT APPROX 5 O'CLOCK POS, THERE WAS AN AIRLINE JET AT OUR ALT CLOSING RAPIDLY. AFTER 1 TO 2 SECONDS, I TOOK CTLS, TURNED R AND DOVE TO ABOUT 6000 FT. EITHER AT THIS TIME OR VERY SHORTLY THEREAFTER, CREW OF JET TOLD ATC, 'TCASII ALERT, WE ARE CLBING.' JET CLRED US W OF ORIGINAL TRACK AND ABOVE. WE RESUMED COURSE AND ALT. AM UNSURE WHETHER JET ACFT EVER ESTABLISHED VISUAL CONTACT WITH US. BAY APCH SHOULD HAVE RECOGNIZED POTENTIAL CONFLICT AND RESOLVED IT. ISSUANCE OF TFC TO JET WAS ALMOST TOO LATE TO BE USEFUL. THIS IS NOT SATISFACTORY PERFORMANCE.
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.