 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Pilot deviation near midair collision when a VFR DH6 conflicts with a departing air carrier medium large transport in the departure corridor of runway 2. The DH6 had reversed course due to WX without communication to the dc after departing runway 2 nebound along the shoreline.
| Attributes | |
| ACN | 376717 |
| Time | |
| Date | 199707 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ogg |
| State Reference | HI |
| Altitude | msl bound lower : 400 msl bound upper : 600 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ogg tower : ogg tower : las |
| Operator | common carrier : air taxi |
| Make Model Name | Twin Otter DHC-6 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure other |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial cruise other |
| Route In Use | departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| ASRS Report | 376717 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : nmac non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 1500 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
A twin otter departed runway 2 on a VFR flight to hana airport. Departure procedures given were to remain offshore, follow shoreline at 1500 ft. After a normal departure aircraft #1 was turned over to departure control for identify and class C service. Subsequently, aircraft #1 reversed course due to encountering clouds and rainshowers without saying anything to the departure controller. Aircraft #2 departed runway 2 with a heading of 360 degrees as per maui 4 departure. The departure controller called maui. Tower and said that aircraft #1 had reversed on his own without telling the controller and the controller asked if there were any departures, tower said aircraft #2 had just departed and for aircraft #1 to remain east of the departure corridor. Departure controller acknowledged. Tower cabin attendant coordinator advised local control of the situation. Local controller advised aircraft #2 of the traffic and assigned a turn to 300 degrees to turn away from aircraft #1. Aircraft #1 did not appear to turn away from the departure corridor. Targets were at 1/4 mi with aircraft #1 at 600 ft and aircraft #2 at 400 ft. Targets merged. The next radar sweep had targets passed with aircraft #1 at 600 ft and aircraft #2 at 1100 ft. Aircraft #2 was advised he was past the traffic and advised to contact departure control. The pilot 'rogered' tersely. Subsequently the departure controller coordinated that aircraft #1 wanted to orbit inland and wait for the rainshower to pass. Tower got communications and assigned VFR holding over a visual reporting point at 1000 ft. Aircraft #1 continued to fly past the point and climb to 2500 ft. A clearance was then coordinated with the appropriate approach control sector.
Original NASA ASRS Text
Title: PLTDEV NMAC WHEN A VFR DH6 CONFLICTS WITH A DEPARTING ACR MLG IN THE DEP CORRIDOR OF RWY 2. THE DH6 HAD REVERSED COURSE DUE TO WX WITHOUT COM TO THE DC AFTER DEPARTING RWY 2 NEBOUND ALONG THE SHORELINE.
Narrative: A TWIN OTTER DEPARTED RWY 2 ON A VFR FLT TO HANA ARPT. DEP PROCS GIVEN WERE TO REMAIN OFFSHORE, FOLLOW SHORELINE AT 1500 FT. AFTER A NORMAL DEP ACFT #1 WAS TURNED OVER TO DEP CTL FOR IDENT AND CLASS C SVC. SUBSEQUENTLY, ACFT #1 REVERSED COURSE DUE TO ENCOUNTERING CLOUDS AND RAINSHOWERS WITHOUT SAYING ANYTHING TO THE DEP CTLR. ACFT #2 DEPARTED RWY 2 WITH A HDG OF 360 DEGS AS PER MAUI 4 DEP. THE DEP CTLR CALLED MAUI. TWR AND SAID THAT ACFT #1 HAD REVERSED ON HIS OWN WITHOUT TELLING THE CTLR AND THE CTLR ASKED IF THERE WERE ANY DEPS, TWR SAID ACFT #2 HAD JUST DEPARTED AND FOR ACFT #1 TO REMAIN E OF THE DEP CORRIDOR. DEP CTLR ACKNOWLEDGED. TWR CAB COORDINATOR ADVISED LCL CTL OF THE SIT. LCL CTLR ADVISED ACFT #2 OF THE TFC AND ASSIGNED A TURN TO 300 DEGS TO TURN AWAY FROM ACFT #1. ACFT #1 DID NOT APPEAR TO TURN AWAY FROM THE DEP CORRIDOR. TARGETS WERE AT 1/4 MI WITH ACFT #1 AT 600 FT AND ACFT #2 AT 400 FT. TARGETS MERGED. THE NEXT RADAR SWEEP HAD TARGETS PASSED WITH ACFT #1 AT 600 FT AND ACFT #2 AT 1100 FT. ACFT #2 WAS ADVISED HE WAS PAST THE TFC AND ADVISED TO CONTACT DEP CTL. THE PLT 'ROGERED' TERSELY. SUBSEQUENTLY THE DEP CTLR COORDINATED THAT ACFT #1 WANTED TO ORBIT INLAND AND WAIT FOR THE RAINSHOWER TO PASS. TWR GOT COMS AND ASSIGNED VFR HOLDING OVER A VISUAL RPTING POINT AT 1000 FT. ACFT #1 CONTINUED TO FLY PAST THE POINT AND CLB TO 2500 FT. A CLRNC WAS THEN COORDINATED WITH THE APPROPRIATE APCH CTL SECTOR.
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.