Kleberg County Airport
Aircraft Accident/Incident Report

Kingsville, Texas 78363
Saturday, February 26, 2011 16:35 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot took off to practice aerobatic maneuvers for an upcoming air show. After completing a hammerhead turn, he felt a slight vibration and the pitch control felt unusual. Returning to the airport, the vibration increased. The pilot landed but was unable to maintain directional control and the airplane ground-looped. The right horizontal stabilizer and elevator had separated from the airplane, striking the rudder and causing substantial damage. A postaccident examination revealed evidence of a pre-existing crack in the front spar near a riveted fitting. The spar moved outward and disengaged from the fitting. The inboard section rotated downward and separated from the airplane. The remaining portion of the stabilizer pivoted aft, separated from the airplane, and struck and damaged the rudder. A service alert from the airplane’s manufacturer outlined a similar previous occurrence. Another emphasized the importance of properly rigged tail wires, noting that if the tail wires were improperly rigged excessive torque loads could be applied to the horizontal stabilizer front spar, causing the attach fitting to fail. Examination of the last annual inspection entry disclosed no reference to the horizontal stabilizer spar being inspected, nor did it indicate that either service bulletin had been complied with.

NTSB Probable Cause Narrative

A pre-existing crack in the front spar of the right horizontal stabilizer near a riveted fitting, causing it to fail and separate from the airplane in flight. Contributing to the accident was the failure of maintenance personnel comply with existing service bulletins and to detect and repair the damaged spar.

Event Information

Type of Event Accident
Event Date 2/26/2011
Event Day of the Week Saturday
Time of Event 1635
Event Time Zone Central Standard Time
Event City Kingsville
Event State TEXAS
Event Country --
Zipcode of the event site 78363
Event Date Year 2011
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 273302N
Event Location Longitude 0980131W
Event Location Airport Kleberg County
Event Location Nearest Airport ID IKG
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 130
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1656 Central Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID IKG
Elevation of weather observation facility 130
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 1200
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) 22
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 12
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.04
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KNQI 022156Z 08009KT 10SM FEW012 SCT035 24/11 A300
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29088
NTSB Notification Source FAA ASW ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 13 2011 7:46PM
User who most recently changed record scoa
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6196L
NTSB Number CEN11LA209
Missing Aircraft Indicator --
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 GREAT LAKES
Aircraft Model 2T-1A-2
Aircraft Series Identifier --
Aircraft Serial Number 0723
Certified Max Gross Weight 1800
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 6 2010 12:00AM
Airframe hours since last inspection 13
Airframe Hours 1601
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name Frederick P. Fiala
Aircraft Owner Street Address 2619 S. Strathford La.
Aircraft Owner City Kingwood
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 77345-1688
Operator is an individual? No
Operator Name Frederick P. Fiala
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Kingwood
Operator State TX
Operator Country USA
Operator Zip code 77345-1688
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 Yes
Departure Airport Code IKG
Departure City Kingsville
Departure State TX
Departure Country USA
Departure Time 1620
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code IKG
Destination City Kingsville
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 18 2011 1:06PM
User who most recently changed record scoa
Since inspection or accident Last Inspection
Event Location Runway Number and Location 31
Runway Length 6000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --