Aircraft Accident/Incident Report

Houston, Texas 77429
Saturday, December 13, 1997 12:10 CST

NTSB Narrative Summary Released at Completion of Accident

During cruise flight at full throttle and engine rpm at 2,700 to 2,800 (maximum 3,200 rpm), the engine ran rough. As the engine rpm and oil pressure decreased, emergency procedures performed by the flight instructor did not restore engine power. During the forced landing in a wet field, the nose gear collapsed and the airplane nosed over to an inverted position. This was the flight instructor's first flight in this make and model of aircraft. Before takeoff, the left magneto drop was beyond the 125 rpm maximum drop allowable. The last annual inspection was conducted in April 1997 at a tachometer reading of 1,956.59 hours. The tachometer reading at the time of the accident was 1,995.61 hours. A teardown of the engine revealed a hole in the #6 cylinder piston, and separation of the rod cap and bolts for the #3 cylinder connecting rod. The components of the #3 connecting rod exhibited overload features. The #6 cylinder piston exhibited physical evidence of detonation or preignition.

NTSB Probable Cause Narrative

The total loss of engine power resulting from detonation and the ensuing failure of the engine piston and connecting rod components. Factors were: the instructor's decision to take off with a known deficiency (magneto drop over limit), the flight instructor's lack of familiarity with the aircraft, and the lack of suitable terrain for the forced landing.

Event Information

Type of Event Accident
Event Date 12/13/1997
Event Day of the Week Saturday
Time of Event 1210
Event Time Zone Central Standard Time
Event City HOUSTON
Event State TEXAS
Event Country --
Zipcode of the event site 77429
Event Date Year 1997
Event Date Month 12
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1050 Central Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID DWH
Elevation of weather observation facility 152
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 3700
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 350
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 Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1544
NTSB Notification Source --
NTSB Notification Date Dec 13 1998 12:00AM
NTSB Notification Time 840
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:42PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6846E
NTSB Number FTW98LA062
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 175A
Aircraft Series Identifier 175A
Aircraft Serial Number 56346
Certified Max Gross Weight 2350
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 Apr 5 1997 12:00AM
Airframe hours since last inspection 39
Airframe Hours 1995
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name JOSEPH C. ARRAMBIDE
Aircraft Owner Street Address 18406 MEMORIAL ESTATES DRIVE
Aircraft Owner City SPRING
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77379
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code DWH
Departure City
Departure State TX
Departure Country
Departure Time 1150
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 2XS3
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --