Aircraft Accident/Incident Report

Salem, Iowa 52649
Wednesday, August 6, 2008 20:10 CDT

NTSB Narrative Summary Released at Completion of Accident

The accident occurred during an aerial application flight. The pilot reported that during a course reversal the engine "felt" as if it had no power. He referenced his engine instruments and noted no anomalies. He assumed that the airplane had encountered an area of disturbed air, and elected to continue onto the next spray run. During the next course reversal, the engine started "popping" like an engine misfire. The engine instruments were referenced again, and no anomalies were noted. The pilot switched magnetos, verified that the mixture was full rich, and selected a full low pitch propeller setting. Despite the pilot's corrective actions, there was no change in engine performance. The pilot performed a three-point landing in a nearby grass field, and the airplane nosed-over during the landing roll when it encountered tall grass. The pilot had flown over 10 hours on the day of the accident without any engine discrepancies. The airplane had departed approximately 40 minutes before the accident with 35 gallons of fuel on board. A postaccident engine examination failed to identify the cause of the engine power loss.

NTSB Probable Cause Narrative

The loss of engine power for an undetermined reason. Contributing to the accident was the high grass encountered during the landing roll.

Event Information

Type of Event Accident
Event Date 8/6/2008
Event Day of the Week Wednesday
Time of Event 2010
Event Time Zone Central Daylight Time
Event City Salem
Event State IOWA
Event Country --
Zipcode of the event site 52649
Event Date Year 2008
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 383834N
Event Location Longitude 0885751W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2015 Central Daylight Time
Direction of event from weather observation facility (degrees) 220
Weather Observation Facility ID MPZ
Elevation of weather observation facility 730
Distance of event from weather observation facility (units?) 9
Time Zone of the weather observation CDT
Lighting Conditions Dusk
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 25
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.06
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 24207
NTSB Notification Source FAA
NTSB Notification Date Aug 7 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 26 2008 6:40PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office Federal Aviation Administration

Aircraft Involved

Aircraft #1

Aircraft Registration Number N48412
NTSB Number CHI08CA240
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Grumman-Schweizer
Aircraft Model G-164B
Aircraft Series Identifier --
Aircraft Serial Number 15B
Certified Max Gross Weight 5200
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 1 2007 12:00AM
Airframe hours since last inspection --
Airframe Hours 6501
ELT Installed No
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Air Advantage, Inc.
Aircraft Owner Street Address 1720 South Lexington Avenue
Aircraft Owner City Mount Pleasant
Aircraft Owner State IA
Aircraft Owner Country USA
Aircraft Owner Zipcode 52641
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code PMJG
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation Agriculture
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 Application
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code MPZ
Departure City Mount Pleasant
Departure State IA
Departure Country USA
Departure Time 1935
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code MPZ
Destination City Mount Pleasant
Destination State IA
Destination Country USA
Specific Phase of Flight Emergency descent/landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 2 2008 5:31PM
User who most recently changed record DINC
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --