Corona Municipal Airport
Aircraft Accident/Incident Report

Corona, California 92880
Friday, July 20, 2012 18:15 PDT

NTSB Narrative Summary Released at Completion of Accident

At the end of a 3-hour-long traffic-watch flight, the pilot began to return to the departure airport. As the airplane transitioned the airspace of an adjacent airport, the engine speed dropped to idle and surged twice. The pilot performed a precautionary landing at the adjacent airport. After an uneventful landing, the pilot performed an engine run-up and more troubleshooting steps and was unable to replicate the engine problem. The pilot then decided to depart for the home airport; however, shortly after departure, the engine speed variations began again, eventually resulting in a total loss of engine power. The pilot performed a forced landing in a nearby field, where the majority of the airplane, including most of its fuel supply system, was consumed by postimpact fire. The engine sustained minimal damage, however, and postaccident examination revealed no evidence of preaccident mechanical malfunctions or failures that would have precluded normal operation.

NTSB Probable Cause Narrative

A loss of engine power shortly after takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot’s decision to take off with a known but unidentified airplane deficiency.

Event Information

Type of Event Accident
Event Date 7/20/2012
Event Day of the Week Friday
Time of Event 1815
Event Time Zone Pacific Daylight Time
Event City Corona
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92880
Event Date Year 2012
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 335340n
Event Location Longitude 1173435w
Event Location Airport Corona Municipal
Event Location Nearest Airport ID AJO
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 533
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1756 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 280
Weather Observation Facility ID KAJO
Elevation of weather observation facility 533
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.88
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KAJO 210056Z AUTO 30013KT 10SM CLR 32/14 A29
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 2
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 30870
NTSB Notification Source FAA ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jan 2 2013 4:32PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N640AM
NTSB Number WPR12FA316
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 182P
Aircraft Series Identifier --
Aircraft Serial Number 18263929
Certified Max Gross Weight 2950
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 5 2010 12:00AM
Airframe hours since last inspection 147
Airframe Hours 15253
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name NOLAN MICHAEL A TRUSTEE
Aircraft Owner Street Address --
Aircraft Owner City CORONA
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 92882-5664
Operator is an individual? Yes
Operator Name MICHAEL A NOLAN
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Corona
Operator State CA
Operator Country USA
Operator Zip code 92882-5664
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RAL
Departure City Riverside
Departure State CA
Departure Country USA
Departure Time 1800
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code AJO
Destination City Corona
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2013 4:32PM
User who most recently changed record coos
Since inspection or accident Last Inspection
Event Location Runway Number and Location 25
Runway Length 3200
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --