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NTSB Report
April 22, 1989 · Boeing A75N1 · N52652
Brooks, GA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 22, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Brooks, GA
Aircraft
Boeing A75N1
Tail Number
N52652
Operator
Malcom Harper
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL89LA135
THE 2970' RWY (ELEVATION 820') WAS MOSTLY SURROUNDED BY TREES. WITH A TEMP OF ABOUT 81 DEG, THE ESTIMATED DENSITY ALT WAS 2700'. AS THE PLT & PSGR WERE TAXIING TO RWY 2 TO TAKE OFF, THE WIND SOCK, WHICH WAS LOCATED BELOW THE TREE TOPS, WAS NOTED TO BE LIMP. THE PLT RPRTD THAT DURING TAKEOFF, LIFT-OFF WAS AT 65 MPH AFTER AN APRX 600' ROLL & A CLIMB WAS ESTABD AT 75 TO 80 MPH. HOWEVER, AS THE ACFT CLIMBED ABV THE TREES, A LEFT DRIFT WAS ENCTRD & THE ACFT STOPPED CLIMBING,ALTHOUGH THERE WAS NO APPARENT ENG PROBLEM. BY THIS TIME, THERE WAS INSUFFICIENT RWY REMAINING TO ABORT & THE ACFT WAS APCHG TREES NEAR THE END OF THE RWY. THE PLT TRADED AIRSPEED FOR ALT TO CLEAR THE TREES & THEN THE ACFT BEGAN TO MUSH. SUBSEQUENTLY, IT SETTLED INTO SMALLER TREES & CAME TO REST WITH SUBSTANTIAL DMG. THE PLT BELIEVED THE ACFT ENCTRD A QUARTERING TAILWIND & A DOWNDRAFT AS IT WAS CLIMBING ABV THE TREES DURING TAKEOFF & SUBSEQUENTLY GOT BEHIND THE POWER CURVE.
NTSB Probable Cause
CLIMB NOT POSSIBLE BECAUSE OF A DOWNDRAFT WHICH EXCEEDED THE PERFORMANCE CAPABILITIES OF THE AIRPLANE. FACTORS RELATED TO THE ACCIDENT WERE: INADEQUATE LOCATION OF THE WIND SOCK, THE ADVERSE WIND CONDITIONS, AND THE TREES.
Full Narrative
THE 2970' RWY (ELEVATION 820') WAS MOSTLY SURROUNDED BY TREES. WITH A TEMP OF ABOUT 81 DEG, THE ESTIMATED DENSITY ALT WAS 2700'. AS THE PLT & PSGR WERE TAXIING TO RWY 2 TO TAKE OFF, THE WIND SOCK, WHICH WAS LOCATED BELOW THE TREE TOPS, WAS NOTED TO BE LIMP. THE PLT RPRTD THAT DURING TAKEOFF, LIFT-OFF WAS AT 65 MPH AFTER AN APRX 600' ROLL & A CLIMB WAS ESTABD AT 75 TO 80 MPH. HOWEVER, AS THE ACFT CLIMBED ABV THE TREES, A LEFT DRIFT WAS ENCTRD & THE ACFT STOPPED CLIMBING,ALTHOUGH THERE WAS NO APPARENT ENG PROBLEM. BY THIS TIME, THERE WAS INSUFFICIENT RWY REMAINING TO ABORT & THE ACFT WAS APCHG TREES NEAR THE END OF THE RWY. THE PLT TRADED AIRSPEED FOR ALT TO CLEAR THE TREES & THEN THE ACFT BEGAN TO MUSH. SUBSEQUENTLY, IT SETTLED INTO SMALLER TREES & CAME TO REST WITH SUBSTANTIAL DMG. THE PLT BELIEVED THE ACFT ENCTRD A QUARTERING TAILWIND & A DOWNDRAFT AS IT WAS CLIMBING ABV THE TREES DURING TAKEOFF & SUBSEQUENTLY GOT BEHIND THE POWER CURVE.
Flight
Event TypeAccident
Event Time15:30 EDT
Nearest AirportBrook Bridge (0nm N)
Runway2
Runway Length2970 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing A75N1
Tail NumberN52652
Aircraft CategoryAir
DamageSubstantial
OperatorMalcom Harper
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · R-670-11 · Reciprocating · 220
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 53 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 6 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point43 C
Altimeter29.00 inHg
Observation Time19:52
Weather SourceWFAC