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NTSB Report
December 17, 1992 · Cessna 172M · N1169U
Laie, HI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 17, 1992
Injury Outcomes
3 injuries (3 fatalities)
Location
Laie, HI
Aircraft
Cessna 172M
Tail Number
N1169U
Operator
Hickam Wheeler Aero Club
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX93FA068
DURING A DARK NIGHTTIME FLIGHT THE PILOT ATTEMPTED TO FLY THE USAF AERO CLUB'S AIRPLANE AROUND THE PERIMETER OF THE ISLAND. AFTER COMPLETING ABOUT ONE HALF OF THE TRIP, THE AIRCRAFT COLLIDED WITH THE 50 DEGREE UP SLOPE SIDE OF A MOUNTAIN, ABOUT 3.5 NM WEST OF COURSE. THE ACCIDENT OCCURRED DURING THE PILOT'S FIRST EXPEREINCE FLYING AT NIGHT AS THE PILOT IN COMMAND. THE PILOT HAD 3.0 TOTAL HOURS OF NIGHT FLYING EXPERIENCE, AND HAD OBTAINED HIS PILOT'S CERTIFICATE 5 DAYS EARLIER. DURING THE PILOT'S PREFLIGHT PREPARATIONS, HE DID NOT REQUEST A COMPLETE WEATHER BRIEFING WHICH WOULD HAVE INDICATED THE LIKELIHOOD OF ENCOUNTERING RAIN SHOWERS WHILE FLYING OVER WINDWARD OAHU. THE USAF HAD A PROCEDURE WHICH, IF FOLLOWED, WOULD HAVE BARRED THE PILOT FROM PERFORMING THE FLIGHT. THE USAF CLEARING AUTHORITY PERSONNEL FAILED TO ADHERE TO ESTABLISHED WRITTEN DISPATCH PROCEDURES.
NTSB Probable Cause
THE PILOT'S INADVERTENT FLIGHT INTO A MOUNTAINOUS AREA WHERE HE LOST VISUAL REFERENCE TO ILLUMINATED GROUND FEATURES WHICH RESULTED IN HIS BECOMING DISORIENTED. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: 1) THE DARK SKY AND LOW CLOUD CONDITIONS; 2) THE PILOT'S FAILURE TO OBTAIN A COMPLETE WEATHER BRIEFING PRIOR TO TAKE OFF; 3) HIS IMPROPER WEATHER EVALUATION; 4) HIS INEXPERIENCE FLYING AT NIGHT; AND 5) THE USAF'S CLEARING AUTHORITY PERSONNEL'S FAILURE TO ADHERE TO ESTABLISHED WRITTEN PROCEDURES WHICH BARRED INEXPERIENCED PILOTS FROM BEING DISPATCHED WITH THE INTENT OF PERFORMING NIGHTTIME CROSS COUNTRY FLIGHTS.
Full Narrative
DURING A DARK NIGHTTIME FLIGHT THE PILOT ATTEMPTED TO FLY THE USAF AERO CLUB'S AIRPLANE AROUND THE PERIMETER OF THE ISLAND. AFTER COMPLETING ABOUT ONE HALF OF THE TRIP, THE AIRCRAFT COLLIDED WITH THE 50 DEGREE UP SLOPE SIDE OF A MOUNTAIN, ABOUT 3.5 NM WEST OF COURSE. THE ACCIDENT OCCURRED DURING THE PILOT'S FIRST EXPEREINCE FLYING AT NIGHT AS THE PILOT IN COMMAND. THE PILOT HAD 3.0 TOTAL HOURS OF NIGHT FLYING EXPERIENCE, AND HAD OBTAINED HIS PILOT'S CERTIFICATE 5 DAYS EARLIER. DURING THE PILOT'S PREFLIGHT PREPARATIONS, HE DID NOT REQUEST A COMPLETE WEATHER BRIEFING WHICH WOULD HAVE INDICATED THE LIKELIHOOD OF ENCOUNTERING RAIN SHOWERS WHILE FLYING OVER WINDWARD OAHU. THE USAF HAD A PROCEDURE WHICH, IF FOLLOWED, WOULD HAVE BARRED THE PILOT FROM PERFORMING THE FLIGHT. THE USAF CLEARING AUTHORITY PERSONNEL FAILED TO ADHERE TO ESTABLISHED WRITTEN DISPATCH PROCEDURES.
Flight
Event TypeAccident
Event Time19:31 HST
Nearest Airport0nm N
Runway0
Flight Plan FiledMvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172M
Tail NumberN1169U
Aircraft CategoryAir
DamageDestroyed
OperatorHickam Wheeler Aero Club
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2D · Reciprocating · 150
Seats4
People & Injuries
Injury Summary3 injuries (3 fatalities)
Fatal3
Serious0
Minor0
Uninjured0
Total3
Crew 1Age 25 · Third Class
Conditions
ConditionsUnknown
LightDark Night
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT