Narrative:

This event involved a solo student on her third solo cross country. I reviewed her flight plan with her on 2 different occasions and WX was reviewed on day of flight. It was a warm day with some humidity, but found to be satisfactory. The student departed normally. On the en route climb, she realized she forgot to lean engine and then did so at approximately 6000 ft MSL. Upon reaching cruise at 7500 ft MSL, she noticed the engine surging approximately 400 RPM. After attempting to re-lean and introduce carburetor heat to no avail, she became concerned about engine failure and notified ont approach. Ont advised her of her nearest airports, perris and march AFB. Due to the high parachute jumping activity, uncontrolled field and shorter runway at perris airport, she chose march AFB and landed normally. After talking to appropriate persons at march, she called the flight school and talked with chief pilot (I was unavailable). She was told to do a thorough runup and call back. After she was satisfied with runup, she called back and it was decided safe for her to fly home. She departed march and flew back to sna airport and flight was normal. Upon returning home, because of all that happened, she also forgot to close VFR flight plan which was closed when FSS called sna tower to check for landing. Contributing factors: nervousness on solo, leaning late, humidity (possible carburetor ice).

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Original NASA ASRS Text

Title: STUDENT PLT OF SOLO XCOUNTRY MAKES AN UNSCHEDULED LNDG DUE TO AN ENG PROB. UPON RETURN TO HOME BASE, STUDENT FORGETS TO CLOSE FLT PLAN.

Narrative: THIS EVENT INVOLVED A SOLO STUDENT ON HER THIRD SOLO XCOUNTRY. I REVIEWED HER FLT PLAN WITH HER ON 2 DIFFERENT OCCASIONS AND WX WAS REVIEWED ON DAY OF FLT. IT WAS A WARM DAY WITH SOME HUMIDITY, BUT FOUND TO BE SATISFACTORY. THE STUDENT DEPARTED NORMALLY. ON THE ENRTE CLB, SHE REALIZED SHE FORGOT TO LEAN ENG AND THEN DID SO AT APPROX 6000 FT MSL. UPON REACHING CRUISE AT 7500 FT MSL, SHE NOTICED THE ENG SURGING APPROX 400 RPM. AFTER ATTEMPTING TO RE-LEAN AND INTRODUCE CARB HEAT TO NO AVAIL, SHE BECAME CONCERNED ABOUT ENG FAILURE AND NOTIFIED ONT APCH. ONT ADVISED HER OF HER NEAREST ARPTS, PERRIS AND MARCH AFB. DUE TO THE HIGH PARACHUTE JUMPING ACTIVITY, UNCTLED FIELD AND SHORTER RWY AT PERRIS ARPT, SHE CHOSE MARCH AFB AND LANDED NORMALLY. AFTER TALKING TO APPROPRIATE PERSONS AT MARCH, SHE CALLED THE FLT SCHOOL AND TALKED WITH CHIEF PLT (I WAS UNAVAILABLE). SHE WAS TOLD TO DO A THOROUGH RUNUP AND CALL BACK. AFTER SHE WAS SATISFIED WITH RUNUP, SHE CALLED BACK AND IT WAS DECIDED SAFE FOR HER TO FLY HOME. SHE DEPARTED MARCH AND FLEW BACK TO SNA ARPT AND FLT WAS NORMAL. UPON RETURNING HOME, BECAUSE OF ALL THAT HAPPENED, SHE ALSO FORGOT TO CLOSE VFR FLT PLAN WHICH WAS CLOSED WHEN FSS CALLED SNA TWR TO CHK FOR LNDG. CONTRIBUTING FACTORS: NERVOUSNESS ON SOLO, LEANING LATE, HUMIDITY (POSSIBLE CARB ICE).

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.