- Date
- June 10, 1970
- Place
- Boulder, CO · BOULDER, CO
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N5468FAlon A2-A
- Status
- Completed · report March 29, 1971
- Report
- Brief approved by the director
- Case key
- 124795
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2511 70/6/10 BOULDER,COLO ALON A2-A CR- 0 0 2 INSTRUCTIONAL ATP,FLIGHT INSTR., AGE TIME - 1045 N5468F PX- 0 0 0 DUAL 36, 8550 TOTAL HOURS, 40 DAMAGE-SUBSTANTIAL OT- 0 0 0 IN TYPE, INSTRUMENT RATED. NAME OF AIRPORT - BOULDER DEPARTURE POINT INTENDED DESTINATION BROOMFIELD,COLO BOULDER,COLO TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION TAKEOFF: INITIAL CLIMB COLLIDED WITH: DIRT BANK LANDING: ROLL PROBABLE CAUSE(S) POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- NR 2 EXHAUST VALVE SEPARATED AT BASE OF HEAD.
Aircraft
- Registration
- N5468F
- Reported as
- Alon A2-A
- Category
- Airplane
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Boulder
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.