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NTSB Report
April 22, 1991 · Rudolph Zeller Lancair · N360R
Titusville, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 22, 1991
Injury Outcomes
2 injuries (1 fatality, 1 minor injury)
Location
Titusville, FL
Aircraft
Rudolph Zeller Lancair
Tail Number
N360R
Operator
Zeller Rudolph
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
MIA91LA126
FLT EXPERIENCED TOTAL LOSS OF ENGINE POWER AND CRASHED WHILE ATTEMPTING A FORCED LANDING. PROPER FUEL QUANTITY WAS PRESENT IN ACFT AND ENGINE AND THERE WAS NO EVIDENCE TO INDICATE PRECRASH MECHANICAL FAILURE OR MALFUNCTION OF THE ENGINE ASSEMBLY. THE CARBURETOR AIR BOX ALTERNATE AIR DOOR WAS FOUND BROKEN OFF IN THE AIR BOX AFTER THE ACCIDENT AND WAS IN A POSITION TO BLOCK AIR FLOW TO THE CARBURETOR. THE DOOR WAS MADE BY THE ACFT OWNER/BUILDER OUT OF .032 INCH THICK METAL WITH A SHARP 90 DEGREE BEND AT THE POINT OF FAILURE. THE ACFT PLANS CALL FOR .040 INCH METAL. THE CARBURETOR AIR BOX HAD NO IMPACT DAMAGE WHICH WOULD HAVE CAUSED THE DOOR TO FAIL AND MARKS IN THE BOX INDICATED THE DOOR HAD MOVED AROUND IN THE BOX FOR SOMETIME.
NTSB Probable Cause
THE USE OF IMPROPER MATERIALS FOR CONSTRUCTION OF THE ALTERNATE AIR DOOR BY THE AIRCRAFT OWNER/BUILDER RESULTING IN FAILURE AND SEPARATION OF THE DOOR WHICH RESULTED IN BLOCKAGE OF AIR FLOW TO THE CARBURETOR AND LOSS OF ALL ENGINE POWER.
Full Narrative
FLT EXPERIENCED TOTAL LOSS OF ENGINE POWER AND CRASHED WHILE ATTEMPTING A FORCED LANDING. PROPER FUEL QUANTITY WAS PRESENT IN ACFT AND ENGINE AND THERE WAS NO EVIDENCE TO INDICATE PRECRASH MECHANICAL FAILURE OR MALFUNCTION OF THE ENGINE ASSEMBLY. THE CARBURETOR AIR BOX ALTERNATE AIR DOOR WAS FOUND BROKEN OFF IN THE AIR BOX AFTER THE ACCIDENT AND WAS IN A POSITION TO BLOCK AIR FLOW TO THE CARBURETOR. THE DOOR WAS MADE BY THE ACFT OWNER/BUILDER OUT OF .032 INCH THICK METAL WITH A SHARP 90 DEGREE BEND AT THE POINT OF FAILURE. THE ACFT PLANS CALL FOR .040 INCH METAL. THE CARBURETOR AIR BOX HAD NO IMPACT DAMAGE WHICH WOULD HAVE CAUSED THE DOOR TO FAIL AND MARKS IN THE BOX INDICATED THE DOOR HAD MOVED AROUND IN THE BOX FOR SOMETIME.
Flight
Event TypeAccident
Event Time10:53 EDT
Nearest AirportSpace Center Executive (1nm S)
Runway36
Runway Length6001 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRudolph Zeller Lancair
Tail NumberN360R
Aircraft CategoryAir
DamageDestroyed
OperatorZeller Rudolph
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1A · Reciprocating · 180
Seats2
People & Injuries
Injury Summary2 injuries (1 fatality, 1 minor injury)
Fatal1
Serious0
Minor1
Uninjured0
Total2
Crew 1Age 62 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind40° @ 3 kt
Visibility4 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter29.00 inHg
Observation Time14:53
Weather SourceWFAC