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After announcing intention to take off from a lake near Z41, pilot in an amphibian aircraft hears another amphibian announce his departure from the opposite end of the lake.
| Attributes | |
| ACN | 406653 |
| Time | |
| Date | 199806 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : z41 |
| State Reference | AK |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Other |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff ground other : taxi other |
| Route In Use | enroute other |
| Flight Plan | None |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff |
| Route In Use | enroute other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | other other : other pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 20000 flight time type : 200 |
| ASRS Report | 406653 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | other other : other |
| Events | |
| Anomaly | conflict : ground critical other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : rejected takeoff flight crew : took evasive action none taken : unable |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
After taxiing the length of bolchitna lake from the southeast end to the northwest end, I turned around to take off. Called on CTAF 122.9 my intention to take off to the southeast on bolchitna lake. I had heard someone call that they were step taxiing out of the lagoon with a step turn to take off to the southeast. I thought he was on the yetna river, not the lake. The lake is hourglass shaped and as I approached the narrow section, aircraft on the step appeared in step turn, I aborted the takeoff -- more to avoid his wake than the aircraft. I still was not on the step. Had I continued the takeoff, there would still have been no collision, but we were too close for comfort.
Original NASA ASRS Text
Title: AFTER ANNOUNCING INTENTION TO TAKE OFF FROM A LAKE NEAR Z41, PLT IN AN AMPHIBIAN ACFT HEARS ANOTHER AMPHIBIAN ANNOUNCE HIS DEP FROM THE OPPOSITE END OF THE LAKE.
Narrative: AFTER TAXIING THE LENGTH OF BOLCHITNA LAKE FROM THE SE END TO THE NW END, I TURNED AROUND TO TAKE OFF. CALLED ON CTAF 122.9 MY INTENTION TO TAKE OFF TO THE SE ON BOLCHITNA LAKE. I HAD HEARD SOMEONE CALL THAT THEY WERE STEP TAXIING OUT OF THE LAGOON WITH A STEP TURN TO TAKE OFF TO THE SE. I THOUGHT HE WAS ON THE YETNA RIVER, NOT THE LAKE. THE LAKE IS HOURGLASS SHAPED AND AS I APCHED THE NARROW SECTION, ACFT ON THE STEP APPEARED IN STEP TURN, I ABORTED THE TKOF -- MORE TO AVOID HIS WAKE THAN THE ACFT. I STILL WAS NOT ON THE STEP. HAD I CONTINUED THE TKOF, THERE WOULD STILL HAVE BEEN NO COLLISION, BUT WE WERE TOO CLOSE FOR COMFORT.
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.