Individually Owned: 150,657
Corporate Owned: 137,281
Goshen Muni Airport
Aircraft Accident/Incident Report
Milford, Indiana 46542
Monday, January 5, 2009 11:15 EST
NTSB Narrative Summary Released at Completion of Accident
The airplane was in cruise flight when the pilot heard a "loud bang followed by a violent vibration." He secured the engine and executed a forced landing to an open field. A postaccident examination revealed that a 20-inch length of one of the propeller blades had separated. Metallurgical examination revealed a fatigue failure of the propeller blade initiating from an area of corrosion. Corrosion pitting was observed over the entire cambered surface of the blade. The propeller had accumulated 2,326 hours total time in service. The most recent annual inspection was completed approximately 2 months prior to the accident. Federal Aviation Administration publications and the manufacturer's documentation recommended a detailed visual inspection of the propeller for corrosion during an aircraft annual inspection.
NTSB Probable Cause Narrative
A loss of engine thrust due to the separation of a section of one of the propeller blades as a result of fatigue failure of the propeller because of corrosion. Contributing to the accident was the failure of the mechanic to detect and address the propeller corrosion during the annual inspection.
Event Information
| Type of Event | Accident |
| Event Date | 1/5/2009 |
| Event Day of the Week | Monday |
| Time of Event | 1115 |
| Event Time Zone | Eastern Standard Time |
| Event City | Milford |
| Event State | INDIANA |
| Event Country | -- |
| Zipcode of the event site | 46542 |
| Event Date Year | 2009 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 412404N |
| Event Location Longitude | 0855120W |
| Event Location Airport | Goshen Muni |
| Event Location Nearest Airport ID | GSH |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 7 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 827 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1053 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 20 |
| Weather Observation Facility ID | GSH |
| Elevation of weather observation facility | 827 |
| Distance of event from weather observation facility (units?) | 7 |
| Time Zone of the weather observation | EST |
| 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) | -6 |
| Dew Point at event time (in degress fahrenheit) | -9 |
| Wind Direction (degrees magnetic) | 230 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KGSH 051553Z AUTO 23007KT 10SM CLR M06/M09 A |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 25476 |
| NTSB Notification Source | FAA-South Bend FSDO |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jul 7 2009 11:50AM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N28862 |
| NTSB Number | CEN09LA132 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | GRUMMAN AMERICAN AVN. CORP. |
| Aircraft Model | AA-5B |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | AA5B0869 |
| Certified Max Gross Weight | 2400 |
| 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 | Oct 31 2008 12:00AM |
| Airframe hours since last inspection | 8 |
| Airframe Hours | 3377 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | MILLER CHAD |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | TOPEKA |
| Aircraft Owner State | IN |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 46571-9731 |
| Operator is an individual? | Yes |
| Operator Name | MILLER CHAD |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | TOPEKA |
| Operator State | IN |
| Operator Country | USA |
| Operator Zip code | 46571-9731 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | 25IN |
| Departure City | Howe |
| Departure State | IN |
| Departure Country | USA |
| Departure Time | 1045 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | GSH |
| Destination City | Goshen |
| Destination State | IN |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 22 2009 9:46AM |
| User who most recently changed record | sort |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |