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Pilot of small aircraft taxiing on taxiway adjacent to takeoff runway encountered jet blast created by widebody transport starting takeoff on runway.
| Attributes | |
| ACN | 127920 |
| Time | |
| Date | 198911 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdx |
| State Reference | OR |
| 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, Retractable Gear |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : takeoff ground : holding |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 40 flight time total : 1014 flight time type : 80 |
| ASRS Report | 127920 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other other : unspecified cockpit |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | other |
Narrative:
I was cleared to taxi from the FBO to runway 10L at pdx via the outer taxiway (alpha). I was almost to the departure end of the runway when I felt the right wing dip sharply. I thought I had a flat tire or damaged gear strut and was contemplating my course of action when the plane suddenly returned to a level condition. My passenger pointed out a widebody transport jet on the adjacent ramp which we had just passed behind. It had been pushed back to the edge of the ramp, perpendicular to the taxiway. I would estimate the distance from the tail of the jet to the taxiway as 200-300'. The jet was apparently using breakaway thrust just as I passed behind it.
Original NASA ASRS Text
Title: PLT OF SMA TAXIING ON TXWY ADJACENT TO TKOF RWY ENCOUNTERED JET BLAST CREATED BY WDB STARTING TKOF ON RWY.
Narrative: I WAS CLRED TO TAXI FROM THE FBO TO RWY 10L AT PDX VIA THE OUTER TXWY (ALPHA). I WAS ALMOST TO THE DEP END OF THE RWY WHEN I FELT THE RIGHT WING DIP SHARPLY. I THOUGHT I HAD A FLAT TIRE OR DAMAGED GEAR STRUT AND WAS CONTEMPLATING MY COURSE OF ACTION WHEN THE PLANE SUDDENLY RETURNED TO A LEVEL CONDITION. MY PAX POINTED OUT A WDB JET ON THE ADJACENT RAMP WHICH WE HAD JUST PASSED BEHIND. IT HAD BEEN PUSHED BACK TO THE EDGE OF THE RAMP, PERPENDICULAR TO THE TXWY. I WOULD ESTIMATE THE DISTANCE FROM THE TAIL OF THE JET TO THE TXWY AS 200-300'. THE JET WAS APPARENTLY USING BREAKAWAY THRUST JUST AS I PASSED BEHIND IT.
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.