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C172 pilot experienced power loss during initial climb out, resulting in inadvertent entry into class C airspace before gaining sufficient altitude to return land.
| Attributes | |
| ACN | 506044 |
| Time | |
| Date | 200103 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : vuo.airport |
| State Reference | WA |
| Altitude | msl single value : 400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : p80.tracon |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot oversight : pic |
| Qualification | pilot : multi engine pilot : commercial |
| Experience | flight time last 90 days : 180 flight time total : 2300 flight time type : 2100 |
| ASRS Report | 506044 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Events | |
| Anomaly | aircraft equipment problem : critical airspace violation : entry inflight encounter other other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : engine power out put indicator other flight crewa |
| Resolutory Action | flight crew : landed in emergency condition flight crew : exited penetrated airspace other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Partial power loss on departure from runway 8 at vuo prevented climb above 400 ft AGL for nearly 2 mi along the north bank of the columbia river between vuo and pdx. I entered class C airspace on a straight out departure to the east, as I was unable to turn north due to rising terrain and unable to turn south due to pdx proximity. I was not able to declare an emergency on frequency because I was on vuo CTAF frequency and was too busy flying the plane near terrain to contact pdx departure. The aircraft slowly gained power and altitude at a point just north of pdx so that I could climb and turn northwest. Upon subsequent landing, I discovered a magneto failure at power settings greater than 2000 RPM. I believe magneto and carburetor ice were factors in my power loss. I plan to rebuild the magneto and do full power run-ups to test for power loss at high RPM. Problems were not apparent while on initial climb out until 400 ft.
Original NASA ASRS Text
Title: C172 PLT EXPERIENCED PWR LOSS DURING INITIAL CLBOUT, RESULTING IN INADVERTENT ENTRY INTO CLASS C AIRSPACE BEFORE GAINING SUFFICIENT ALT TO RETURN LAND.
Narrative: PARTIAL PWR LOSS ON DEP FROM RWY 8 AT VUO PREVENTED CLB ABOVE 400 FT AGL FOR NEARLY 2 MI ALONG THE N BANK OF THE COLUMBIA RIVER BTWN VUO AND PDX. I ENTERED CLASS C AIRSPACE ON A STRAIGHT OUT DEP TO THE E, AS I WAS UNABLE TO TURN N DUE TO RISING TERRAIN AND UNABLE TO TURN S DUE TO PDX PROX. I WAS NOT ABLE TO DECLARE AN EMER ON FREQ BECAUSE I WAS ON VUO CTAF FREQ AND WAS TOO BUSY FLYING THE PLANE NEAR TERRAIN TO CONTACT PDX DEP. THE ACFT SLOWLY GAINED PWR AND ALT AT A POINT JUST N OF PDX SO THAT I COULD CLB AND TURN NW. UPON SUBSEQUENT LNDG, I DISCOVERED A MAGNETO FAILURE AT PWR SETTINGS GREATER THAN 2000 RPM. I BELIEVE MAGNETO AND CARB ICE WERE FACTORS IN MY PWR LOSS. I PLAN TO REBUILD THE MAGNETO AND DO FULL PWR RUN-UPS TO TEST FOR PWR LOSS AT HIGH RPM. PROBS WERE NOT APPARENT WHILE ON INITIAL CLBOUT UNTIL 400 FT.
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.