ASN Wikibase Occurrence # 382372
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| Date: | Sunday 20 March 1983 |
| Time: | 17:00 LT |
| Type: | Waspair HM-81 TOMCAT TOUR |
| Owner/operator: | Private |
| Registration: | UNREG |
| MSN: | |
| Engine model: | CUYUNA UNKNOWN |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Chugiak, AK -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A TEST PLT & DEALER FOR THE MANUFACTURER INSPECTED THE ULTRALIGHT VEHICLE & MADE ADJUSTMENTS PRIOR TO MAKING A TEST FLIGHT AFTER IT WAS ASSEMBLED. HE STATED THAT BEFORE TAKEOFF, HE WAS HAVING PROBLEMS SETTING THE CARBURETOR MIXTURE & THAT THE THROTTLE CABLE WAS NOT WORKING WELL. DURING EARLIER TAXI TESTS, THE ENG CEASED OPERATING A NUMBER OF TIMES. FINALLY, ON THE LAST TAXI TEST, THE ENG OPERATED AT FULL RPM & HE ELECTED TO TAKEOFF. AFTER TAKEOFF, THE ULTRALIGHT CLIMBED TO ABOUT 100 FT AGL, THEN BEGAN TO LOSE POWER. THE PLT WAS UNABLE TO GLIDE TO A CLEARING & SUBSEQUENTLY CRASHED INTO TREES. THE VEHICLE REMAINED IN THE TREES & THE PLT REMAINED SECURE BY HIS LAP BELT & SHOULDER HARNESS. HOWEVER, AFTER HE RELEASED HIS RESTRAINT SYSTEM, HE WAS INJURED WHEN HE FELL APRX 40 FT TO THE GROUND. THE TEMP & DEW POINT WERE 40 & 36 DEG, RESPECTIVELY. ACCORDING TO ICING PROBABILITY CURVES, SERIOUS ICING WOULD HAVE BEEN POSSIBLE AT CRUISE POWER. HOWEVER, ICING WAS NOT VERIFIED. THERE WAS NO PROVISION FOR CARBURETOR HEAT.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB ANC83LU001
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Apr-2024 13:20 | ASN Update Bot | Added |
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