Aircraft Accident/Incident Report

Escalante, Utah 84726
Saturday, July 17, 2004 19:00 MDT

NTSB Narrative Summary Released at Completion of Accident

According to the pilot, approximately 25 minutes into the flight, the engine began to run rough and shake "violently." A few monuments later, blue smoke came out of the engine cowling and filled the cabin. The pilot shut down the engine, and attempted a forced landing to an exposed sand bar adjacent to a river. When the airplane impacted the sand bar, the nose landing gear and both main landing gear assemblies collapsed, substantially damaging the airplane's firewall and both wings. An engine examination revealed that a brass quick-drain fitting, installed in the engine's oil pan, had unscrewed and fallen out. The quick-drain fitting was not secured with safety wire.

NTSB Probable Cause Narrative

the improper installation of an oil pan quick-drain fitting resulting in the loss of engine oil, failure of the engine, and subsequent impact with terrain following an attempted forced landing. A contributing factor was the lack of suitable terrain for a forced landing.

Event Information

Type of Event Accident
Event Date 7/17/2004
Event Day of the Week Saturday
Time of Event 1900
Event Time Zone Mountain Daylight Time
Event City Escalante
Event State UTAH
Event Country --
Zipcode of the event site 84726
Event Date Year 2004
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 374440N
Event Location Longitude 1111813W
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1853 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 250
Weather Observation Facility ID KBCE
Elevation of weather observation facility 7586
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 90
Sky/Lowest/Cloud Conditions Few
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) 19
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30.33
Density Altitude (feet) 9465
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16501
NTSB Notification Source FAA Comm Ctr
NTSB Notification Date Jul 18 2004 12:00AM
NTSB Notification Time 1013
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 28 2004 10:11AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6773U
NTSB Number DEN04LA105
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 Mooney
Aircraft Model M20C
Aircraft Series Identifier --
Aircraft Serial Number 2495
Certified Max Gross Weight 2575
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 27 2004 12:00AM
Airframe hours since last inspection 48
Airframe Hours 4627
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name EMP. AV Corp
Aircraft Owner Street Address 9436 Vista Ridge Ave.
Aircraft Owner City Las Vegas
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89129
Operator is an individual? No
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? --
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 1L7
Departure City Escalante
Departure State UT
Departure Country USA
Departure Time 1835
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 1L7
Destination City Escalante
Destination State UT
Destination Country USA
Specific Phase of Flight Emergency landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Sep 8 2004 11:44AM
User who most recently changed record MCBM
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --