Aircraft Accident/Incident Report

Rio Hondo, Texas 78583
Saturday, March 17, 1990 15:11 CST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT STATED THAT WHILE IN CRUISE FLIGHT AT 2,500 FEET, HE NOTICED AN INCREASE IN ENGINE RPM AND DETECTED SMOKE IN THE CABIN. AFTER REDUCING THROTTLE TO A CONTROLLABLE RPM, HE NOTICED THAT THE ENGINE OIL PRESSURE WAS ZERO. HE SUBSEQUENTLY EXECUTED A FORCED LANDING TO AN OPEN BRUSHY AREA THAT WAS THE BEST AVAILABLE. DURING ROLL OUT THE NOSE GEAR DUG INTO THE SOFT GROUND AND THE AIRPLANE FLIPPED OVER. INVESTIGATION REVEALED THAT THE PROPELLER GOVERNOR OIL LINE FITTING HAD SEPARATED DUE TO STRIPPING OF THE THREADS OUT OF THE GOVERNOR HOUSING AND THAT THE FITTING WAS INCORRECT FOR THE APPLICATION. THE AIRPLANE HAD EXPERIENCED A FORCED LANDING 13 DAYS PRIOR TO THE ACCIDENT DUE TO AN OIL LEAK AND LOSS OF OIL PRESSURE DUE TO THE JAM NUT ON THE FAILED FITTING HAVING BACKED OFF. ON THAT OCCASION, A MECHANIC TIGHTENED THE LINE AND THE AIRPLANE WAS CLEARED FOR FLIGHT.

NTSB Probable Cause Narrative

OIL STARVATION INDUCED POWER LOSS DUE TO IMPROPER MAINTENANCE PROCEDURES. CONTRIBUTING TO THE ACCIDENT WERE INADEQUATE MAINTENANCE INSPECTION AND THE SOFT TERRAIN IN WHICH THE FORCED LANDING WAS PERFORMED.

Event Information

Type of Event Accident
Event Date 3/17/1990
Event Day of the Week Saturday
Time of Event 1511
Event Time Zone Central Standard Time
Event City RIO HONDO
Event State TEXAS
Event Country --
Zipcode of the event site 78583
Event Date Year 1990
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 18
Degrees magnetic from airport 30
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1446 Central Standard Time
Direction of event from weather observation facility (degrees) 210
Weather Observation Facility ID HRL
Elevation of weather observation facility 15
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 557
NTSB Notification Source --
NTSB Notification Date Mar 17 1990 12:00AM
NTSB Notification Time 2130
Fiche Number and/or location -used to find docket information 41519
Date of most recent change to record Dec 12 2000 4:50PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4696L
NTSB Number FTW90LA084
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 CESSNA
Aircraft Model 172G
Aircraft Series Identifier 172G
Aircraft Serial Number 17254691
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 Annual
Date of Last Inspection Nov 17 1989 12:00AM
Airframe hours since last inspection 11
Airframe Hours 3844
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BS AVIATION, INC.
Aircraft Owner Street Address P.O. BOX 1186
Aircraft Owner City SAN BENITO
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 78586
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 HRL
Departure City HARLINGEN
Departure State TX
Departure Country
Departure Time 1420
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code HRL
Destination City HARLINGEN
Destination State TX
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
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 --