- Date
- December 15, 1969
- Place
- Clear Lake, IA · CLEAR LAKE, IA
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Uncontrolled descent
- Aircraft
- N5646FAlon A-2A
- Status
- Completed · report April 10, 1970
- Report
- Brief approved by the director
- Case key
- 149166
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 ---------------------------------------------------------------------------------------------------------------------------- 3-3578 69/12/15 CLEAR LAKE,IOWA ALON A-2A CR- 2 0 0 NONCOMMERCIAL COMMERCIAL, FL.INSTR., TIME - UNK/NR N5646F PX- 0 0 0 BUSINESS AGE 28, 860 TOTAL HOURS, DAMAGE-DESTROYED OT- 0 0 0 59 IN TYPE, INSTRUMENT RATED. NAME OF AIRPORT - MASON CITY DEPARTURE POINT INTENDED DESTINATION MASON CITY,IOWA FT.DODGE,IOWA TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: UNCONTROLLED DESCENT PROBABLE CAUSE(S) COPILOT - SPATIAL DISORIENTATION PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT FACTOR(S) PERSONNEL - WEATHER PERSONNEL: INCORRECT WEATHER FORECAST WEATHER - LOW CEILING WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE WEATHER FORECAST - WEATHER CONSIDERABLY WORSE THAN FORECAST MISSING AIRCRAFT - LATER RECOVERED SKY CONDITION CEILING AT ACCIDENT SITE OVERCAST 300 VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 5 OR OVER(UNLIMITED) NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F NONE 2 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 330 8 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE REMARKS- CP BELIEVED TO HAVE LOST CONTROL DURING CLIMBOUT. LOW CLOUD DECK UNFCST. RECOVERY DATE 12/15/69.
Aircraft
- Registration
- N5646F
- Reported as
- Alon A-2A
- Category
- Airplane
- Engine
- reciprocating
- Damage
- Destroyed
- Airport
- Mason City
N5646FRegistration cancelled Jun 24, 1976 · Alon A-2AAirframe modelAlon A-2AEngine modelContinental C90 series
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.