Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Sedona, Arizona 86336
Saturday, October 2, 2004 10:25 MST
NTSB Narrative Summary Released at Completion of Accident
The engine lost partial power during flight, and the airplane collided with a vehicle during a forced landing on a road. The pilot was performing a local for hire sightseeing flight for two passengers. Approximately 15 minutes into the flight, a loud "popping" noise was heard coming from the engine. The pilot was unable to maintain altitude and force landed on a city street. During the landing roll, the right wing impacted a car on the road. Post accident examination of the engine revealed that the number 7 cylinder exhaust valve rocker arm had failed in fatigue. The surface fracture initiation marks were consistent with a grinding operation during manufacture. The grinding operation is performed to remove any flash remaining at the mold parting line, after the casting operation, and is normally carried out by holding the part by hand and guiding it on a large grinding wheel.
NTSB Probable Cause Narrative
a loss of engine power due to the fatigue fracture of the number 7 cylinder exhaust rocker arm as a result of a grinding operation during manufacture.
Event Information
| Type of Event | Accident |
| Event Date | 10/2/2004 |
| Event Day of the Week | Saturday |
| Time of Event | 1025 |
| Event Time Zone | Mountain Standard Time |
| Event City | Sedona |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 86336 |
| Event Date Year | 2004 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 345108N |
| Event Location Longitude | 1114744W |
| 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 | 1053 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 69 |
| Weather Observation Facility ID | PRC |
| Elevation of weather observation facility | 5045 |
| Distance of event from weather observation facility (units?) | 32 |
| Time Zone of the weather observation | MST |
| 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) | 22 |
| Dew Point at event time (in degress fahrenheit) | -1 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.27 |
| 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) | 19207 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Oct 2 2004 12:00AM |
| NTSB Notification Time | 1050 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Feb 28 2006 12:35PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | WP-SDL-FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N43064 |
| NTSB Number | LAX05LA002 |
| 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 | Classic Aircraft Corp |
| Aircraft Model | WACO YMF |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | FS-062 |
| Certified Max Gross Weight | 2900 |
| 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 | 3 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Sep 1 2004 12:00AM |
| Airframe hours since last inspection | 50 |
| Airframe Hours | 2985 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Dakota Territory Tours |
| Aircraft Owner Street Address | 770 Sunshine Lane |
| Aircraft Owner City | Sedona |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 86336 |
| Operator is an individual? | No |
| Operator Name | Solid Edge Aviation dba Red Rock Biplane Tours |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1967 Bonita Circle |
| Operator City | Cottonwood |
| Operator State | AZ |
| Operator Country | USA |
| Operator Zip code | 86326 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| 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) | Other Work Use |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | SEZ |
| Departure City | Sedona |
| Departure State | AZ |
| Departure Country | USA |
| Departure Time | 1000 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | -- |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Cruise |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Dec 1 2005 6:38PM |
| User who most recently changed record | COOS |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | Yes |
| Air Medical Flight | No |
| Medical Flight | -- |