High altitude flight in a lower power aircraft results in a forced off airport landing.

Attributes
ACN	309082
Time
Date	199506
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : 0v2 airport : mtj
State Reference	CO
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other cruise other other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 16 flight time total : 4000 flight time type : 1000
ASRS Report	309082
Events
Anomaly	inflight encounter : weather other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	faa : investigated faa : assigned or threatened penalties other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I departed the airport in montrose, on jun/fri/95 at approximately XA30 am, in my cessna 150, alone. I flew east toward monarch pass, and climbed to an altitude of 11500 ft. As I approached monarch pass, I turned steeply to avoid IFR conditions. During the turn, the aircraft began to lose altitude. An attempt to leveloff and maintain altitude was not successful. The aircraft continued to descend and a rough landing was made on a turn off apron on the south side of us highway 50, approximately 1/2 mi west of monarch pass. There were no injuries. After securing the aircraft, I hitch hiked to salida airport where I employed an aircraft mechanic to disassemble and transport the cessna to salida airport. Callback conversation with reporter revealed the following information: the reporter 'does not know why this happened.' maybe he will learn when he takes the FAA proficiency check ride that he has scheduled. The left wing was replaced, the right wingtip was repaired, the left horizontal stabilizer was replaced as was the engine mount. The reporter feels that he was 'lucky to have walked away from this.' he was reluctant to talk about the incident. He states that the C-150's service ceiling is 12500 ft and he was flying in mountainous terrain and trying to maneuver at 11500 ft.

Original NASA ASRS Text

Title: HIGH ALT FLT IN A LOWER PWR ACFT RESULTS IN A FORCED OFF ARPT LNDG.

Narrative: I DEPARTED THE ARPT IN MONTROSE, ON JUN/FRI/95 AT APPROX XA30 AM, IN MY CESSNA 150, ALONE. I FLEW E TOWARD MONARCH PASS, AND CLBED TO AN ALT OF 11500 FT. AS I APCHED MONARCH PASS, I TURNED STEEPLY TO AVOID IFR CONDITIONS. DURING THE TURN, THE ACFT BEGAN TO LOSE ALT. AN ATTEMPT TO LEVELOFF AND MAINTAIN ALT WAS NOT SUCCESSFUL. THE ACFT CONTINUED TO DSND AND A ROUGH LNDG WAS MADE ON A TURN OFF APRON ON THE S SIDE OF US HWY 50, APPROX 1/2 MI W OF MONARCH PASS. THERE WERE NO INJURIES. AFTER SECURING THE ACFT, I HITCH HIKED TO SALIDA ARPT WHERE I EMPLOYED AN ACFT MECH TO DISASSEMBLE AND TRANSPORT THE CESSNA TO SALIDA ARPT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR 'DOES NOT KNOW WHY THIS HAPPENED.' MAYBE HE WILL LEARN WHEN HE TAKES THE FAA PROFICIENCY CHK RIDE THAT HE HAS SCHEDULED. THE L WING WAS REPLACED, THE R WINGTIP WAS REPAIRED, THE L HORIZ STABILIZER WAS REPLACED AS WAS THE ENG MOUNT. THE RPTR FEELS THAT HE WAS 'LUCKY TO HAVE WALKED AWAY FROM THIS.' HE WAS RELUCTANT TO TALK ABOUT THE INCIDENT. HE STATES THAT THE C-150'S SVC CEILING IS 12500 FT AND HE WAS FLYING IN MOUNTAINOUS TERRAIN AND TRYING TO MANEUVER AT 11500 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.