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Potential conflict between 2 small aircraft's aircraft taking off on reciprocal runways at non tower airport.
| Attributes | |
| ACN | 145621 |
| Time | |
| Date | 199005 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : 60s |
| State Reference | WA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | climbout : takeoff ground : holding ground other : taxi |
| Flight Plan | None |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | climbout : takeoff ground other : taxi other |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 20 flight time total : 2250 flight time type : 1800 |
| ASRS Report | 145621 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : ground critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : rejected takeoff other |
| Consequence | Other |
| Miss Distance | horizontal : 1500 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After run-up I checked the wind 'T' and proceeded to the hold line for the active runway 8. At the hold line I changed from pearson unicom (123.00) to pdx tower (118.70) to get clearance direct into the pdx arsa to pdx runway 10 (active per ATIS). After receiving clearance, I switched back to unicom, announced my intentions, checked visually for incoming traffic, and started onto the runway. As I turned onto the runway I observed an small aircraft taking off on runway 26 on a direct collision course and against the 'T'. I made a quick turn back onto the taxiway and the other plane aborted its takeoff. He returned to the tie-down area and I resumed my flight to pdx. The wind 'T' at pearson has a history of making indiscriminate runway changes in calm or light crosswind conditions. It is also difficult to see from the end of runway 26. This type of near miss/collision would be avoided if all aircraft checked the wind 'T' prior to takeoff/landing and all aircraft announced their intentions on the unicom frequency.
Original NASA ASRS Text
Title: POTENTIAL CONFLICT BETWEEN 2 SMA'S ACFT TAKING OFF ON RECIPROCAL RWYS AT NON TWR ARPT.
Narrative: AFTER RUN-UP I CHKED THE WIND 'T' AND PROCEEDED TO THE HOLD LINE FOR THE ACTIVE RWY 8. AT THE HOLD LINE I CHANGED FROM PEARSON UNICOM (123.00) TO PDX TWR (118.70) TO GET CLRNC DIRECT INTO THE PDX ARSA TO PDX RWY 10 (ACTIVE PER ATIS). AFTER RECEIVING CLRNC, I SWITCHED BACK TO UNICOM, ANNOUNCED MY INTENTIONS, CHKED VISUALLY FOR INCOMING TFC, AND STARTED ONTO THE RWY. AS I TURNED ONTO THE RWY I OBSERVED AN SMA TAKING OFF ON RWY 26 ON A DIRECT COLLISION COURSE AND AGAINST THE 'T'. I MADE A QUICK TURN BACK ONTO THE TXWY AND THE OTHER PLANE ABORTED ITS TKOF. HE RETURNED TO THE TIE-DOWN AREA AND I RESUMED MY FLT TO PDX. THE WIND 'T' AT PEARSON HAS A HISTORY OF MAKING INDISCRIMINATE RWY CHANGES IN CALM OR LIGHT XWIND CONDITIONS. IT IS ALSO DIFFICULT TO SEE FROM THE END OF RWY 26. THIS TYPE OF NEAR MISS/COLLISION WOULD BE AVOIDED IF ALL ACFT CHKED THE WIND 'T' PRIOR TO TKOF/LNDG AND ALL ACFT ANNOUNCED THEIR INTENTIONS ON THE UNICOM FREQ.
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.