Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Santa Maria, California 93455
Wednesday, March 23, 1994 15:30 PST
NTSB Narrative Summary Released at Completion of Accident
THE AIRCRAFT LOST ENGINE POWER AND COLLIDED WITH TREES IN MOUNTAINOUS TERRAIN. THE PILOT REPORTED THE LOSS OF POWER WAS GRADUAL WITH ENGINE ROUGHNESS. THE PILOT ATTEMPTED TO RESTART THE ENGINE BUT DID NOT MANIPULATE THE MAGNETO SWITCH AS OUTLINED IN THE PILOT OPERATING HANDBOOK AMPLIFIED EMERGENCY PROCEDURES. EXAMINATION OF THE ENGINE MAGNETOS REVEALED THE LEFT MAGNETO INTERNAL TIMING WAS INCORRECT. THE BREAKER POINT CAM AND CAM FOLLOWER WERE FOUND WORN. A SLICK MODEL 4201-R MAGNETO IS NOT AN APPROVED INSTALLATION ON LYCOMING ENGINES. MAINTENANCE RECORDS DID NOT SHOW THAT NEW OR OVERHAULED MAGNETOS WERE INSTALLED AT THE TIME OF THE ENGINE OVERHAUL OR REPLACED AFTER THE ENGINE WAS OVERHAULED. REVIEW OF THE ENGINE LOGBOOK INDICATED THE MAGNETO TIMING WAS ADJUSTED ABOUT 78 FLIGHT HOURS BEFORE THE ACCIDENT AT THE LAST 100-HOUR INSPECTION.
NTSB Probable Cause Narrative
AN ENGINE FAILURE DUE TO THE IMPROPER INSTALLATION AND SERVICE OF AN INCORRECT MODEL MAGNETO BY MAINTENANCE PERSONNEL, AND THE FAILURE OF THE PILOT-IN-COMMAND TO FOLLOW PUBLISHED AIRPLANE EMERGENCY PROCEDURES.
Event Information
| Type of Event | Accident |
| Event Date | 3/23/1994 |
| Event Day of the Week | Wednesday |
| Time of Event | 1530 |
| Event Time Zone | Pacific Standard Time |
| Event City | SANTA MARIA |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 93455 |
| Event Date Year | 1994 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| 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 | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1500 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 295 |
| Weather Observation Facility ID | SMX |
| Elevation of weather observation facility | 259 |
| Distance of event from weather observation facility (units?) | 37 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 18000 |
| Lowest Non-Ceiling Height | 9000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 40 |
| Air Temperature at event time (in degrees celsius) | 13 |
| Dew Point at event time (in degress fahrenheit) | -2 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 14 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 2 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 243 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Mar 24 1994 12:00AM |
| NTSB Notification Time | 1530 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 6 2000 10:50AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N13620 |
| NTSB Number | LAX94LA173 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 172M |
| Aircraft Series Identifier | 172M |
| Aircraft Serial Number | 17262888 |
| Certified Max Gross Weight | 2300 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| 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 | 100 Hour |
| Date of Last Inspection | Dec 30 1993 12:00AM |
| Airframe hours since last inspection | 78 |
| Airframe Hours | 7015 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | Yes |
| ELT Type | -- |
| Aircraft Owner Name | ROLF, JOHN A. |
| Aircraft Owner Street Address | 12822 E. CYPRESS PASS LOOP |
| Aircraft Owner City | CYPRESS |
| Aircraft Owner State | TX |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 77429 |
| Operator is an individual? | -- |
| Operator Name | HORIZON AVIATION |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 20803 STUBENER AIRLINE BOX9 |
| Operator City | SPRING |
| Operator State | TX |
| Operator Country | |
| Operator Zip code | 77379 |
| Operator Code | |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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) | Personal |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | SBA |
| Departure City | SANTA BARBARA |
| Departure State | CA |
| Departure Country | |
| Departure Time | 1445 |
| Departure Time Zone | PST |
| 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? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |