Banning Municipal Airport
Aircraft Accident/Incident Report

Cabazon, California 92230
Sunday, August 21, 2011 15:45 PDT

NTSB Narrative Summary Released at Completion of Accident

On August 21, 2011, about 1545 Pacific daylight time, a Piper PA-31-310, N1009S, experienced a loss of engine power in the left engine during cruise and made a forced landing in open desert terrain near Cabazon, California. Southern California Edison (SoCal Edison) operated the airplane under the provisions of 14 Code of Federal Regulations Part 91 as aerial survey flight. The commercial pilot and two surveyors were not injured, the airplane sustained substantial damage. Visual meteorological conditions prevailed for the local area flight that departed Banning Airport (BNG), Banning, California, at an undetermined time. No flight plan had been filed. The pilot was interviewed by the National Transportation Safety Board investigator-in-charge (NTSB IIC). He stated that the purpose of the flight was to survey the power lines in the area of BNG to the Palm Springs wind farms. The pilot had flown the airplane to BNG the day before and performed a flight that day. He had flown the surveyors the morning of the accident, and the accident flight in the afternoon was to be the last flight. On the previous two flights, there had been no mechanical discrepancies encountered. The first part of the accident flight was uneventful from BNG to the wind farms. He made the turn back to BNG and was about 20 miles out of BNG when he heard a loud bang coming from the left engine. Oil began gushing out of the engine, followed by an engine shutdown. The pilot stated that he then feathered the propeller and attempted to return to BNG airport. He stated that he was not able to maintain altitude, and decided to make a forced landing in an open field. According to the operator, the airplane was hired by Towill, Inc., to perform survey work for SoCal Edison.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/21/2011
Event Day of the Week Sunday
Time of Event 1545
Event Time Zone Pacific Daylight Time
Event City Cabazon
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92230
Event Date Year 2011
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 335443N
Event Location Longitude 1165244W
Event Location Airport Banning Municipal Airport
Event Location Nearest Airport ID BNG
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 4
Degrees magnetic from airport --
Airport Elevation 2219
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 285
Weather Observation Facility ID PSP
Elevation of weather observation facility 477
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 20000
Sky/Lowest/Cloud Conditions Scattered
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) 49
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) 50
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.75
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) --
NTSB Notification Source FAA AWP Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 16 2011 5:45PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1009S
NTSB Number WPR11LA401
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-31-310
Aircraft Series Identifier --
Aircraft Serial Number 31-329
Certified Max Gross Weight --
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 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MARC INC
Aircraft Owner Street Address 44 CROSSGATES DR
Aircraft Owner City BRANDON
Aircraft Owner State MS
Aircraft Owner Country USA
Aircraft Owner Zipcode 39042-2273
Operator is an individual? Yes
Operator Name Southern California Edison
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Ontario
Operator State CA
Operator Country USA
Operator Zip code --
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 BNG
Departure City Banning
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code BNG
Destination City Banning
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 16 2011 5:45PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --