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Near midair collision between small transport X and small transport Y at saf leads to landing without clearance for small transport X. Small transport Y continues unauthorized and non standard approach to produce pattern conflict with and avoidance maneuvers by small transport Z and small aircraft U.
| Attributes | |
| ACN | 118983 |
| Time | |
| Date | 198907 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : saf |
| State Reference | NM |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : saf artcc : zkc |
| Operator | general aviation : personal |
| Make Model Name | Small Transport |
| Flight Phase | descent : approach landing other other |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Small Transport |
| Flight Phase | descent : approach landing : go around other |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 120 flight time total : 5000 |
| ASRS Report | 118983 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : nmac incursion : landing without clearance non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I, small transport X, was inbound to saf from the east. Tower told me to report a 4 mi right base for runway 33. I also heard the pilot of an small transport Y report to the tower that she was 13 mi east. At the time I was 9 mi east. The tower asked her to report a 5 mi right base. When I reported established on a 4 mi base, I hadn't heard the small transport Y report so I assumed she was still east of my position. While I was on a 1 mi final the small transport Y pilot reported that she was 'over the racetrack.' the racetrack was right in front of me and I then saw the small transport Y pass across the final for 33 about 300' above me at an apparently high rate of speed. This course put her on a collision course with an small transport Z that was on left base. The tower told her to immediately turn right and the small transport Z to make a right 360 degree turn. The right turn put her on a head-on course with an small aircraft U on downwind. At this point I was almost on the ground and due to the confusion, I was uncertain if I had been cleared to land. I landed anyway as I was reluctant to initiate a go around with small transport Y's intentions unknown.
Original NASA ASRS Text
Title: NMAC BETWEEN SMT X AND SMT Y AT SAF LEADS TO LNDG WITHOUT CLRNC FOR SMT X. SMT Y CONTINUES UNAUTH AND NON STANDARD APCH TO PRODUCE PATTERN CONFLICT WITH AND AVOIDANCE MANEUVERS BY SMT Z AND SMA U.
Narrative: I, SMT X, WAS INBND TO SAF FROM THE E. TWR TOLD ME TO RPT A 4 MI RIGHT BASE FOR RWY 33. I ALSO HEARD THE PLT OF AN SMT Y RPT TO THE TWR THAT SHE WAS 13 MI E. AT THE TIME I WAS 9 MI E. THE TWR ASKED HER TO RPT A 5 MI RIGHT BASE. WHEN I RPTED ESTABLISHED ON A 4 MI BASE, I HADN'T HEARD THE SMT Y RPT SO I ASSUMED SHE WAS STILL E OF MY POS. WHILE I WAS ON A 1 MI FINAL THE SMT Y PLT RPTED THAT SHE WAS 'OVER THE RACETRACK.' THE RACETRACK WAS RIGHT IN FRONT OF ME AND I THEN SAW THE SMT Y PASS ACROSS THE FINAL FOR 33 ABOUT 300' ABOVE ME AT AN APPARENTLY HIGH RATE OF SPD. THIS COURSE PUT HER ON A COLLISION COURSE WITH AN SMT Z THAT WAS ON LEFT BASE. THE TWR TOLD HER TO IMMEDIATELY TURN RIGHT AND THE SMT Z TO MAKE A RIGHT 360 DEG TURN. THE RIGHT TURN PUT HER ON A HEAD-ON COURSE WITH AN SMA U ON DOWNWIND. AT THIS POINT I WAS ALMOST ON THE GND AND DUE TO THE CONFUSION, I WAS UNCERTAIN IF I HAD BEEN CLRED TO LAND. I LANDED ANYWAY AS I WAS RELUCTANT TO INITIATE A GAR WITH SMT Y'S INTENTIONS UNKNOWN.
Data retrieved from NASA's ASRS site as of August 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.