- Date
- August 5, 1987, 07:20 local (14:20 UTC)
- Place
- Riverside, CA
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N3712Curtiss JN-4
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 24, 1989
- Report
- Approved by Office Director
- FAA report
- 19870805047369A
- Case key
- 25301
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
During a business flight, the engine experienced a loss of engine power. The pilot made a forced landing in an open area where during the touchdown, the aircraft was substantially damaged. The plt stalled the acft while still several ft off the ground. The acft rt wing dropped and the acft turned rt before crashing in a construction site parking lot. According to an engine overhaul facility, this engine had a coolant pump located directly above the carburetor. This pump had a history of leaking, and would cause a substantial power loss when not maintained correctly. The leaking coolant pump would introduce contaminates through several ports in the carburetor.
Aircraft
- Registration
- N3712
- Reported as
- Curtiss JN-4
- Category
- Airplane
- Serial number
- 3712
- Engine
- Curtis Wright OX-X6, 90 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Operator
- Wentworth, Charles G.
- Registered owner
- Ramon E Folsom
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- L67 · Rubidoux, CA
- Destination
- L66 · Corona, CA
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.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 45
- Certificate
- Commercial
- Airplane ratings
- Single-engine sea, Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Rear
- Flight hours
- 6,500 total · 30 in this make and model · 6,370 as pilot in command · 65 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 72 °F, dew point 72 °F
- Altimeter
- 29.00 inHg
- Observed at
- RAL
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.