Aircraft Accident/Incident Report

Morristown, Arizona 85390
Sunday, May 18, 1997 6:40 MST

NTSB Narrative Summary Released at Completion of Accident

The engine developed an oil leak resulting in smoke in the cockpit and decaying oil pressure. The private pilot shut off the engine and attempted to land on a local desert airstrip. The airplane landed approximately 50 feet short of the airstrip and contacted several large bushes during the landing rollout. The postaccident investigation disclosed that the oil supply hose from the oil cooler to the engine had ruptured. The hose appeared to be old and heat deteriorated, but was not replaced in conjunction with a recent engine change.

NTSB Probable Cause Narrative

failure to replace an old and abraded oil feedline hose which led to its rupture and the in-flight loss of engine oil pressure. A related factor was the pilot's misjudgment of distance-to-go versus altitude remaining during the subsequent forced landing.

Event Information

Type of Event Accident
Event Date 5/18/1997
Event Day of the Week Sunday
Time of Event 640
Event Time Zone Mountain Standard Time
Event City MORRISTOWN
Event State ARIZONA
Event Country --
Zipcode of the event site 85390
Event Date Year 1997
Event Date Month 5
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 Pilot
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) 50
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1178
NTSB Notification Source --
NTSB Notification Date May 18 1997 12:00AM
NTSB Notification Time 910
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:17PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8551H
NTSB Number LAX97LA183
Missing Aircraft Indicator N
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 North American
Aircraft Model NAVION NA-1
Aircraft Series Identifier NAVION NA-
Aircraft Serial Number NAV-4-535
Certified Max Gross Weight 3233
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 5
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 10 1996 12:00AM
Airframe hours since last inspection 75
Airframe Hours 4672
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JAMES P. MELLODY
Aircraft Owner Street Address 51401 HIGHWAY 60
Aircraft Owner City WICKENBURG
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85390
Operator is an individual? --
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
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 No
Departure Airport Code E25
Departure City WICKENBURG
Departure State AZ
Departure Country
Departure Time 640
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? --
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --