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NTSB Report
February 14, 1992 · Beech D-18H · N33AP
Lanai, HI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 14, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Lanai, HI
Aircraft
Beech D-18H
Tail Number
N33AP
Operator
Polynesian Airways
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX92LA116
THE PILOT SAID THAT THE APPROACH TO THE AIRPORT WAS NORMAL, WITH A 100 KNOT INDICATED AIRSPEED. THE PILOT SAID THE WINDS WERE ABOUT 110 DEGREES AT 10 KNOTS DURING THE APPROACH; HOWEVER, ON SHORT FINAL HE ENCOUNTERED A VERY STRONG GUST FROM THE RIGHT. THE PILOT CORRECTED FOR THE WIND GUST THEN IT STOPPED AND THE AIRCRAFT SUDDENLY DROPPED HARD TO THE RUNWAY WITHOUT WARNING. THE PILOT SAID HE SUSPECTED A WINDSHEAR ENCOUNTER WAS RESPONSIBLE FOR THE ACCIDENT. WITNESSES SAID THE APPROACH SEEMED NORMAL WHEN THE AIRCRAFT SUDDENLY DROPPED TO THE RUNWAY AND BOUNCED. THE WITNESSES SAID THAT A THUNDERSTORM HAD PASSED THROUGH THE AREA JUST PRIOR TO THE AIRCRAFT'S APPROACH.
NTSB Probable Cause
FAILURE OF THE PILOT TO COMPENSATE FOR AN ENCOUNTER WITH A WINDSHEAR PHENOMENA. CONTRIBUTING TO THE ACCIDENT WAS THE LACK OF A LOW LEVEL WINDSHEAR WARNING SYSTEM OR A SYSTEM FOR THE COLLECTION AND DISSEMINATION OF WEATHER ADVISORIES.
Full Narrative
THE PILOT SAID THAT THE APPROACH TO THE AIRPORT WAS NORMAL, WITH A 100 KNOT INDICATED AIRSPEED. THE PILOT SAID THE WINDS WERE ABOUT 110 DEGREES AT 10 KNOTS DURING THE APPROACH; HOWEVER, ON SHORT FINAL HE ENCOUNTERED A VERY STRONG GUST FROM THE RIGHT. THE PILOT CORRECTED FOR THE WIND GUST THEN IT STOPPED AND THE AIRCRAFT SUDDENLY DROPPED HARD TO THE RUNWAY WITHOUT WARNING. THE PILOT SAID HE SUSPECTED A WINDSHEAR ENCOUNTER WAS RESPONSIBLE FOR THE ACCIDENT. WITNESSES SAID THE APPROACH SEEMED NORMAL WHEN THE AIRCRAFT SUDDENLY DROPPED TO THE RUNWAY AND BOUNCED. THE WITNESSES SAID THAT A THUNDERSTORM HAD PASSED THROUGH THE AREA JUST PRIOR TO THE AIRCRAFT'S APPROACH.
Flight
Event TypeAccident
Event Time08:15 HST
Nearest AirportLANAI (0nm N)
Runway3
Runway Length5000 ft
Runway Width150 ft
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech D-18H
Tail NumberN33AP
Aircraft CategoryAir
DamageSubstantial
OperatorPolynesian Airways
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsP&W · R-985 · Reciprocating · 450
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 47 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind170° @ 15 kt
Visibility1 sm
CeilingNone
Temperature / Dew Point70 F / 68 F
Altimeter29.00 inHg
Observation Time17:53
Weather SourceWFAC