Individually Owned: 150,657
Corporate Owned: 137,281
Valle Airport
Aircraft Accident/Incident Report
Williams, Arizona 86046
Monday, November 11, 1996 11:05 MST
NTSB Narrative Summary Released at Completion of Accident
According to the pilot, during initial climb, the engine gradually lost power. Subsequently, it crash landed on uneven/rocky terrain and came to rest against trees in an inverted attitude. Density altitude was computed to be about 7,300 feet. The pilot reported that prior to the flight, when he first started the engine, no indication of oil pressure was observed. He shut down the engine and purchased 1 quart of oil. No abnormal indications were observed during the subsequent ground check out or takeoff roll. However, during the initial climb, the oil pressure indicator dropped to zero pounds. A teardown examination of the engine was performed. The crankshaft assembly revealed signatures consistent with heat distress in the number 2 main journal area. The oil pump's drive shaft was found broken. A foreign metal object was observed wedged between the teeth of the pump's driving and driven gears, and the engagement end of the oil pump drive shaft was found sheared off. The foreign object resembled a small bolt or screw, which was not used in the manufacture of the engine.
NTSB Probable Cause Narrative
a foreign object in the oil system, which resulted in failure of the oil pump, oil starvation, loss of engine power, and a subsequent forced landing. Rough/uneven terrain in the emergency landing area was a related factor.
Event Information
| Type of Event | Accident |
| Event Date | 11/11/1996 |
| Event Day of the Week | Monday |
| Time of Event | 1105 |
| Event Time Zone | Mountain Standard Time |
| Event City | WILLIAMS |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 86046 |
| Event Date Year | 1996 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | VALLE |
| Event Location Nearest Airport ID | 40G |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 180 |
| Airport Elevation | 6002 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Witness |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 30 |
| Air Temperature at event time (in degrees celsius) | 18 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 60 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 7300 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1781 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Nov 11 1996 12:00AM |
| NTSB Notification Time | 1125 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 8 2000 10:27AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N714VX |
| NTSB Number | LAX97LA037 |
| 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 | 152 |
| Aircraft Series Identifier | 152 |
| Aircraft Serial Number | 15279477 |
| Certified Max Gross Weight | 1670 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Sep 5 1996 12:00AM |
| Airframe hours since last inspection | 50 |
| Airframe Hours | 6654 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | JUDITH A. SILVA |
| Aircraft Owner Street Address | 905 W. 19TH STREET |
| Aircraft Owner City | TEMPE |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 85281 |
| Operator is an individual? | -- |
| Operator Name | SUNBIRD FLIGHT SERVICES |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 2375 S. STINSON |
| Operator City | CHANDLER |
| Operator State | AZ |
| Operator Country | |
| Operator Zip code | 85249 |
| 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 | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | 40G |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1104 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | SEZ |
| Destination City | SEDONA |
| Destination State | AZ |
| Destination Country | |
| Specific Phase of Flight | Emergency landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 19 |
| Runway Length | 4262 |
| Runway Width | 45 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |