19981029034549A

Accident · Destroyed

FAA accident report · Withun Curtis B T-BIRD II · Macomb, IL · October 29, 1998

Date
October 29, 1998 · 14:09 local
Place
Macomb, IL
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N72145
NTSB investigation
NTSBCHI99LA013
People aboard
1
Fatal injuries
1

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Acft was performing touch and go landings when it took off, veered left, dropped behind some trees, and crashed. The pilot/sole occupant suffered fatal injuries. The acft was destroyed. Other circumstances are unknown. (-23) on October 29, 1998, inspector serge cote and myself were assigned to investigate an accident that occurred near Macomb airport on pilot road, north of 27 mile road. We arrived on the scene approximately 1730 eastern standard time. We proceeded to the aircraft and began to photograph and take notes of the condition of the airframe, aircraft instrument readings, contents of the cockpit, switch positions, and condition of the area. On further investigating the cockpit I noticed that the fuel primer button was pushed in fully, three toggle switches (one was marked power) wre in the off poosition, and the airspeed indicator was indicating 75 to 80 mph on impact. Also, a hand held radio was on and set at a frequency of 122.7, and the altimerter was reading 29.45 at 7800 feet on impact. Inspector cote noticed that the RPM gauge, which was outside and next to the aircraft, was indicating just above zero (0) RPM on impact. He also notice a plastic soda bottl e in the cockpit with the cap on it. The cap had a hole drilled on the top. The only continuity of flight controls we were able to determine was good were the elevators. All other flight controls were damaged. We also noticed that one blade of the propeller was broken off n a 90 degree angle to the leading edge of the propeller. We found the broken piece of the propeller laying approximately 30-40 feet from the accident. The broken propeller blade showed signs that it was struck by a tree branch. The strike was in a 90 degree angle to the leading edge of the blade. The remaining blade on the aircraft was in a reverse pitch position and had two small dents on the leading edge of the blade, eight inches from the tip. The pitch of the propeller blades can only be changed mechanically on the ground. The aircraft fuel tank was placarded with a permanent marker. From this marker there was approximately four (4) gallons of fuel left. The fuel tank capacity, according to the markings, was approximately thirteen (13) gallons. The aircraft was moved by ballors towing inc. to ballors garage. In the garage, we continued the investigation. Inspector cote and myself noticed that one of the carburetors on the engine was stuck in the full throttle position. This aircraft was equipped with two carburetors. The other carburetor was in the normal, engine idle, position. Both carburetors showed no signs of impact damage.

As the FAA filed it

ACFT WAS PERFORMING TOUCH AND GO LANDINGS WHEN IT TOOK OFF, VEERED LEFT, DROPPED BEHIND SOME TREES, AND CRASHED. THE PILOT/SOLE OCCUPANT SUFFERED FATAL INJURIES. THE ACFT WAS DESTROYED. OTHER CIRCUMSTANCES ARE UNKNOWN. (-23) ON OCTOBER 29, 1998, INSPECTOR SERGE COTE AND MYSELF WERE ASSIGNED TO INVESTIGATE AN ACCIDENT THAT OCCURRED NEAR MACOMB AIRPORT ON PILOT ROAD, NORTH OF 27 MILE ROAD. WE ARRIVED ON THE SCENE APPROXIMATELY 1730 EASTERN STANDARD TIME. WE PROCEEDED TO THE AIRCRAFT AND BEGAN TO PHOTOGRAPH AND TAKE NOTES OF THE CONDITION OF THE AIRFRAME, AIRCRAFT INSTRUMENT READINGS, CONTENTS OF THE COCKPIT, SWITCH POSITIONS, AND CONDITION OF THE AREA. ON FURTHER INVESTIGATING THE COCKPIT I NOTICED THAT THE FUEL PRIMER BUTTON WAS PUSHED IN FULLY, THREE TOGGLE SWITCHES (ONE WAS MARKED POWER) WRE IN THE OFF POOSITION, AND THE AIRSPEED INDICATOR WAS INDICATING 75 TO 80 MPH ON IMPACT. ALSO, A HAND HELD RADIO WAS ON AND SET AT A FREQUENCY OF 122.7, AND THE ALTIMERTER WAS READING 29.45 AT 7800 FEET ON IMPACT. INSPECTOR COTE NOTICED THAT THE RPM GAUGE, WHICH WAS OUTSIDE AND NEXT TO THE AIRCRAFT, WAS INDICATING JUST ABOVE ZERO (0) RPM ON IMPACT. HE ALSO NOTICE A PLASTIC SODA BOTTL E IN THE COCKPIT WITH THE CAP ON IT. THE CAP HAD A HOLE DRILLED ON THE TOP. THE ONLY CONTINUITY OF FLIGHT CONTROLS WE WERE ABLE TO DETERMINE WAS GOOD WERE THE ELEVATORS. ALL OTHER FLIGHT CONTROLS WERE DAMAGED. WE ALSO NOTICED THAT ONE BLADE OF THE PROPELLER WAS BROKEN OFF N A 90 DEGREE ANGLE TO THE LEADING EDGE OF THE PROPELLER. WE FOUND THE BROKEN PIECE OF THE PROPELLER LAYING APPROXIMATELY 30-40 FEET FROM THE ACCIDENT. THE BROKEN PROPELLER BLADE SHOWED SIGNS THAT IT WAS STRUCK BY A TREE BRANCH. THE STRIKE WAS IN A 90 DEGREE ANGLE TO THE LEADING EDGE OF THE BLADE. THE REMAINING BLADE ON THE AIRCRAFT WAS IN A REVERSE PITCH POSITION AND HAD TWO SMALL DENTS ON THE LEADING EDGE OF THE BLADE, EIGHT INCHES FROM THE TIP. THE PITCH OF THE PROPELLER BLADES CAN ONLY BE CHANGED MECHANICALLY ON THE GROUND. THE AIRCRAFT FUEL TANK WAS PLACARDED WITH A PERMANENT MARKER. FROM THIS MARKER THERE WAS APPROXIMATELY FOUR (4) GALLONS OF FUEL LEFT. THE FUEL TANK CAPACITY, ACCORDING TO THE MARKINGS, WAS APPROXIMATELY THIRTEEN (13) GALLONS. THE AIRCRAFT WAS MOVED BY BALLORS TOWING INC. TO BALLORS GARAGE. IN THE GARAGE, WE CONTINUED THE INVESTIGATION. INSPECTOR COTE AND MYSELF NOTICED THAT ONE OF THE CARBURETORS ON THE ENGINE WAS STUCK IN THE FULL THROTTLE POSITION. THIS AIRCRAFT WAS EQUIPPED WITH TWO CARBURETORS. THE OTHER CARBURETOR WAS IN THE NORMAL, ENGINE IDLE, POSITION. BOTH CARBURETORS SHOWED NO SIGNS OF IMPACT DAMAGE.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.