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Corporate aircraft has near midair collision with jump plane at 10000 ft. ATC talking to both aircraft.
| Attributes | |
| ACN | 281586 |
| Time | |
| Date | 199408 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : sna |
| State Reference | CA |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ont |
| Operator | general aviation : corporate |
| Make Model Name | Citation II S2/Bravo |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : instructional |
| Make Model Name | Twin Otter DHC-6 |
| Operating Under FAR Part | other : unknown |
| Flight Phase | descent other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 11000 flight time type : 100 |
| ASRS Report | 281586 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew other |
| Miss Distance | horizontal : 50 vertical : 100 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
On approach to sna, ZLA handed us off to ont approach. I asked for RNAV direct to kayoh intersection. Approach controller declined. 2 mins later, turned me right 30 degrees 'to avoid jumpers.' 1 min later evasive action was necessary to avoid midair collision with a twin otter, the jump plane. I asked approach if she was talking to us both. She said yes. I said I would like to report a near collision. I was given ont approach telephone number for supervisor. After landing, I spoke with the supervisor on duty. He told me the controller had been on a landline and missed the call to us to avoid traffic. Informed me he sent the controller home, relived of duty for stress. We discussed the traffic problems in that area. He said he was understaffed. Callback conversation with reporter revealed the following information: reporter states the supervisor knew exactly why he was calling when he did call on the ground. Supervisor stated he felt the need to increase staff for that time period in that sector and would do so. This same controller had another incident shortly after the reporter's incident in which there was close proximity. He heard the interchange on the frequency. He stated the controller was trying to handle the situation and talking as fast as possible. Supervisor indicated that the twin otter pilot did have the reporter aircraft in sight. Reporter says if so, he must have been a kamikaze pilot since he did not appear to take evasive action. This is the closest he has ever come to an actual midair. If they had not taken evasive action, he knows they would have hit.
Original NASA ASRS Text
Title: CORPORATE ACFT HAS NMAC WITH JUMP PLANE AT 10000 FT. ATC TALKING TO BOTH ACFT.
Narrative: ON APCH TO SNA, ZLA HANDED US OFF TO ONT APCH. I ASKED FOR RNAV DIRECT TO KAYOH INTXN. APCH CTLR DECLINED. 2 MINS LATER, TURNED ME R 30 DEGS 'TO AVOID JUMPERS.' 1 MIN LATER EVASIVE ACTION WAS NECESSARY TO AVOID MIDAIR COLLISION WITH A TWIN OTTER, THE JUMP PLANE. I ASKED APCH IF SHE WAS TALKING TO US BOTH. SHE SAID YES. I SAID I WOULD LIKE TO RPT A NEAR COLLISION. I WAS GIVEN ONT APCH TELEPHONE NUMBER FOR SUPVR. AFTER LNDG, I SPOKE WITH THE SUPVR ON DUTY. HE TOLD ME THE CTLR HAD BEEN ON A LANDLINE AND MISSED THE CALL TO US TO AVOID TFC. INFORMED ME HE SENT THE CTLR HOME, RELIVED OF DUTY FOR STRESS. WE DISCUSSED THE TFC PROBS IN THAT AREA. HE SAID HE WAS UNDERSTAFFED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THE SUPVR KNEW EXACTLY WHY HE WAS CALLING WHEN HE DID CALL ON THE GND. SUPVR STATED HE FELT THE NEED TO INCREASE STAFF FOR THAT TIME PERIOD IN THAT SECTOR AND WOULD DO SO. THIS SAME CTLR HAD ANOTHER INCIDENT SHORTLY AFTER THE RPTR'S INCIDENT IN WHICH THERE WAS CLOSE PROX. HE HEARD THE INTERCHANGE ON THE FREQ. HE STATED THE CTLR WAS TRYING TO HANDLE THE SIT AND TALKING AS FAST AS POSSIBLE. SUPVR INDICATED THAT THE TWIN OTTER PLT DID HAVE THE RPTR ACFT IN SIGHT. RPTR SAYS IF SO, HE MUST HAVE BEEN A KAMIKAZE PLT SINCE HE DID NOT APPEAR TO TAKE EVASIVE ACTION. THIS IS THE CLOSEST HE HAS EVER COME TO AN ACTUAL MIDAIR. IF THEY HAD NOT TAKEN EVASIVE ACTION, HE KNOWS THEY WOULD HAVE HIT.
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.