- Date
- February 28, 1969
- Place
- Lacon, IL · LACON, IL
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Uncontrolled descent
- Aircraft
- N1173Bensen B-8M
- Status
- Completed · report May 19, 1969
- Report
- Brief approved by the director
- Case key
- 190892
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 ---------------------------------------------------------------------------------------------------------------------------- 3-0528 69/2/28 LACON,ILL BENSEN B-8M CR- 0 1 0 INSTRUCTIONAL STUDENT, AGE 41, 263 TIME - 1550 N1173 PX- 0 0 0 TRAINING TOTAL HOURS, 50 IN TYPE, DAMAGE-SUBSTANTIAL OT- 0 0 0 NOT INSTRUMENT RATED. NAME OF AIRPORT - MARSHALL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: UNCONTROLLED DESCENT PROBABLE CAUSE(S) ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE REMARKS- PUSH PULL TUBE IN CONTROL SYSTEM FAILED AT BRAZED POINT.PRIOR VIBRATIONS CAUSED HIGH LOADS ON TUBE
Aircraft
- Registration
- N1173
- Reported as
- Bensen B-8M
- Category
- Gyroplane, amateur-built
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Marshall
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.