Humphrey Airport
Aircraft Accident/Incident Report

Baytown, Texas 77562
Saturday, January 23, 1993 8:45 CST

NTSB Narrative Summary Released at Completion of Accident

DURING THE TAKEOFF ROLL THE PILOT RECOGNIZED THAT THE ENGINE WAS NOT DEVELOPING FULL POWER. THE PILOT ABORTED THE TAKEOFF, HOWEVER, HE FELT THAT THE AIRPLANE WOULD RUN OFF THE END OF THE RUNWAY. GROUND SPEED AT THE TIME OF ABORT WAS 55 TO 60 KNOTS. HE INTENTIONALLY GROUND LOOPED THE AIRPLANE BY APPLYING FULL RUDDER. FOLLOWING THE GROUND LOOP THE AIRPLANE SLID INTO A DITCH. AN EXAMINATION OF THE ENGINE REVEALED A STUCK EXHAUST VALVE IN THE NUMBER 3 CYLINDER

NTSB Probable Cause Narrative

THE LOSS OF POWER DUE TO A STUCK EXHAUST VALVE IN THE NUMBER 3 CYLINDER

Event Information

Type of Event Accident
Event Date 1/23/1993
Event Day of the Week Saturday
Time of Event 845
Event Time Zone Central Standard Time
Event City BAYTOWN
Event State TEXAS
Event Country --
Zipcode of the event site 77562
Event Date Year 1993
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport HUMPHREY
Event Location Nearest Airport ID HPY
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 33
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 750 Central Standard Time
Direction of event from weather observation facility (degrees) 295
Weather Observation Facility ID HOU
Elevation of weather observation facility 80
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation CST
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) 15
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 14
NTSB Notification Source --
NTSB Notification Date Jan 23 1993 12:00AM
NTSB Notification Time 1100
Fiche Number and/or location -used to find docket information 47683
Date of most recent change to record Dec 11 2000 1:07PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N73405
NTSB Number FTW93LA074
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 172M
Aircraft Series Identifier 172M
Aircraft Serial Number 17267434
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 Jan 18 1993 12:00AM
Airframe hours since last inspection 6
Airframe Hours 2160
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name INTERCOASTAL INC.
Aircraft Owner Street Address 518 CORLEY DRIVE
Aircraft Owner City HIGHLAND
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77520
Operator is an individual? --
Operator Name INTERCOASTAL INC.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 518 CORLEY DRIVE
Operator City HIGHLAND
Operator State TX
Operator Country
Operator Zip code 77520
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 HPY
Departure City
Departure State
Departure Country
Departure Time 845
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code HPY
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
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 13
Runway Length 3994
Runway Width 40
Sight Seeing flight No
Air Medical Flight No
Medical Flight --