 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A PIC of a B737-300 turns in front of a commuter aircraft when the B737 had been given a visual climb, reference the light transport. Captain meant to turn right for avoidance but 'misjudged' his closure with the traffic and missed him by 200 ft, an near midair collision.
| Attributes | |
| ACN | 408521 |
| Time | |
| Date | 199807 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sna |
| State Reference | CA |
| Altitude | msl bound lower : 15000 msl bound upper : 16000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax tower : fll |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 19000 flight time type : 8500 |
| ASRS Report | 408521 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : nmac non adherence : far non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight sna-sjc at 15000 ft. Socal departure held us at 15000 ft due to commuter traffic at 16000 ft at our 10 O'clock position. We saw the traffic at 10 O'clock position visually and on our TCASII. We were asked if we wanted to climb reference traffic, we agreed and started to climb to FL280. It was dusk, I wanted to turn the aircraft to my right to stay out of the way of the 10 O'clock position traffic, but instead I turned in front of him, missing him by 200 ft. If it wasn't for the TCASII we might not have leveled off in time. It was impossible to judge your distance and altitude and speed and angle of traffic without the help of TCASII.
Original NASA ASRS Text
Title: A PIC OF A B737-300 TURNS IN FRONT OF A COMMUTER ACFT WHEN THE B737 HAD BEEN GIVEN A VISUAL CLB, REF THE LTT. CAPT MEANT TO TURN R FOR AVOIDANCE BUT 'MISJUDGED' HIS CLOSURE WITH THE TFC AND MISSED HIM BY 200 FT, AN NMAC.
Narrative: FLT SNA-SJC AT 15000 FT. SOCAL DEP HELD US AT 15000 FT DUE TO COMMUTER TFC AT 16000 FT AT OUR 10 O'CLOCK POS. WE SAW THE TFC AT 10 O'CLOCK POS VISUALLY AND ON OUR TCASII. WE WERE ASKED IF WE WANTED TO CLB REF TFC, WE AGREED AND STARTED TO CLB TO FL280. IT WAS DUSK, I WANTED TO TURN THE ACFT TO MY R TO STAY OUT OF THE WAY OF THE 10 O'CLOCK POS TFC, BUT INSTEAD I TURNED IN FRONT OF HIM, MISSING HIM BY 200 FT. IF IT WASN'T FOR THE TCASII WE MIGHT NOT HAVE LEVELED OFF IN TIME. IT WAS IMPOSSIBLE TO JUDGE YOUR DISTANCE AND ALT AND SPD AND ANGLE OF TFC WITHOUT THE HELP OF TCASII.
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.