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Near midair collision between 2 small aircraft while on a sightseeing operation near watsonville, ca, where a special event was in progress. Both pilots were viewing this but only one, the reporter, used his VHF and exterior lighting.
| Attributes | |
| ACN | 373136 |
| Time | |
| Date | 199707 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : 3o7 |
| State Reference | CA |
| Altitude | msl bound lower : 1700 msl bound upper : 1700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Cessna Aircraft Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | None |
| Aircraft 2 | |
| Make Model Name | Piper Single Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 40 flight time total : 1000 flight time type : 190 |
| ASRS Report | 373136 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Departed sns airport after doing one practice approach/taxi back. Approached hollister from southwest at initial altitude of 3200 ft (for crossing gabilan range). Descended to 1500 ft until approximately 7 mi southwest of hollister airport. Never came within 3 mi of hollister airport. Transmitted over tres pinos (approximately 5 mi of hollister airport) toward downtown hollister airport at 1500 ft. Before arriving at downtown called hollister CTAF (123.0) and stated 'cessna over hollister downtown returning direct sns.' I had to wait for several moments because a baron and another aircraft were circling for landing. Before beginning descent into hollister turned on all landing/navigation/flashers lights. After departing downtown on a ssw heading and climbing gradually a piper or tampico (red stripes over white) passed right to left and perhaps 200 ft higher in front of my plane. This aircraft wasn't on the CTAF, didn't have any flashing lights and appeared to be descending and in a slight l-hand bank (apparently to observe the special event in downtown hollister). I should have been expecting other traffic and the other aircraft should have been talking on the CTAF and also looking for traffic.
Original NASA ASRS Text
Title: NMAC BTWN 2 SMA WHILE ON A SIGHTSEEING OP NEAR WATSONVILLE, CA, WHERE A SPECIAL EVENT WAS IN PROGRESS. BOTH PLTS WERE VIEWING THIS BUT ONLY ONE, THE RPTR, USED HIS VHF AND EXTERIOR LIGHTING.
Narrative: DEPARTED SNS ARPT AFTER DOING ONE PRACTICE APCH/TAXI BACK. APCHED HOLLISTER FROM SW AT INITIAL ALT OF 3200 FT (FOR XING GABILAN RANGE). DSNDED TO 1500 FT UNTIL APPROX 7 MI SW OF HOLLISTER ARPT. NEVER CAME WITHIN 3 MI OF HOLLISTER ARPT. XMITTED OVER TRES PINOS (APPROX 5 MI OF HOLLISTER ARPT) TOWARD DOWNTOWN HOLLISTER ARPT AT 1500 FT. BEFORE ARRIVING AT DOWNTOWN CALLED HOLLISTER CTAF (123.0) AND STATED 'CESSNA OVER HOLLISTER DOWNTOWN RETURNING DIRECT SNS.' I HAD TO WAIT FOR SEVERAL MOMENTS BECAUSE A BARON AND ANOTHER ACFT WERE CIRCLING FOR LNDG. BEFORE BEGINNING DSCNT INTO HOLLISTER TURNED ON ALL LNDG/NAV/FLASHERS LIGHTS. AFTER DEPARTING DOWNTOWN ON A SSW HEADING AND CLBING GRADUALLY A PIPER OR TAMPICO (RED STRIPES OVER WHITE) PASSED R TO L AND PERHAPS 200 FT HIGHER IN FRONT OF MY PLANE. THIS ACFT WASN'T ON THE CTAF, DIDN'T HAVE ANY FLASHING LIGHTS AND APPEARED TO BE DSNDING AND IN A SLIGHT L-HAND BANK (APPARENTLY TO OBSERVE THE SPECIAL EVENT IN DOWNTOWN HOLLISTER). I SHOULD HAVE BEEN EXPECTING OTHER TFC AND THE OTHER ACFT SHOULD HAVE BEEN TALKING ON THE CTAF AND ALSO LOOKING FOR TFC.
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.