Aircraft Accident/Incident Report

Maunaloa, Hawaii 96770
Wednesday, December 23, 1987 18:53 HST

NTSB Narrative Summary Released at Completion of Accident

THE FLIGHT WAS TO BE FLOWN ACROSS A 22 MILE CHANNEL BETWEEN ISLANDS ON AN OVERCAST NIGHT WITH NO MOON AND NO GROUND REFERENCE LIGHTS. THE AIRCRAFT DISAPPEARED FROM RADAR AND, AFTER EXTENSIVE SEARCHES, COULD NOT BE FOUND. A THREE DIMENSIONAL FLIGHT TRACK WAS RECONSTRUCTED USING RECORDED RADAR DATA. THE DATA INDICATED THAT IN THE LAST 60 SEC THE AIRCRAFT SLOWED FROM 170 TO 95 KTS, GAINED 500 FT IN ALTITUDE, AND TURNED LEFT 190 DEGREES BEFORE ABRUPTLY DISAPPEARING FROM RADAR. FLIGHT TESTS INDICATED THAT THE MOVEMENTS OF THE AIRCRAFT IN THE LAST 60 SEC OF THE FLIGHT WERE CONSISTENT WITH A LOSS OF THE LEFT ENGINE, WITHOUT COMPENSATION BY THE PILOT. THE OPERATOR'S TRAINING PROGRAM DID NOT PROVIDE FOR NIGHT OR INSTRUMENT FLIGHT CONDITIONS. THE LAST DOCUMENTED INSTRUMENT TIME FOR THE PILOT WAS 15 MONTHS PRIOR DURING A CHECKRIDE. THE PILOT FLEW SPORADIC NIGHT FLIGHTS. THE PILOT HAD PREVIOUSLY FLOWN DURING THE DAY AND WAS ON HIS THIRTEENTH HOUR OF DUTY. AIRCRAFT DAMAGE AND INJURY INDEX PRESUMED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 12/23/1987
Event Day of the Week Wednesday
Time of Event 1853
Event Time Zone Hawaii Standard Time
Event City MAUNALOA
Event State HAWAII
Event Country --
Zipcode of the event site 96770
Event Date Year 1987
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1855 Hawaii Standard Time
Direction of event from weather observation facility (degrees) 262
Weather Observation Facility ID HNL
Elevation of weather observation facility 13
Distance of event from weather observation facility (units?) 31
Time Zone of the weather observation HST
Lighting Conditions Night/Dark
Lowest Ceiling Height 4500
Lowest Non-Ceiling Height 2100
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 12
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1000
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 8
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 8
Investigating Agency NTSB
NTSB Docket Number (internal use) 2643
NTSB Notification Source --
NTSB Notification Date Dec 23 1987 12:00AM
NTSB Notification Time 2340
Fiche Number and/or location -used to find docket information 38459
Date of most recent change to record Dec 13 2000 3:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N712AN
NTSB Number LAX88FA075
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-31-350
Aircraft Series Identifier PA-31-350
Aircraft Serial Number 31-7652151
Certified Max Gross Weight 7000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 10
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Dec 6 1987 12:00AM
Airframe hours since last inspection 46
Airframe Hours 6516
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AIRTOUR ACQUISITION CORP.
Aircraft Owner Street Address 100 KAULELE PLACE
Aircraft Owner City HONOLULU
Aircraft Owner State HI
Aircraft Owner Country
Aircraft Owner Zipcode 96819
Operator is an individual? --
Operator Name PANORAMA AIR TOURS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 100 KAULELE PLACE
Operator City HONOLULU
Operator State HI
Operator Country
Operator Zip code 96819
Operator Code PAHA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code HNL
Departure City HONOLULU
Departure State HI
Departure Country
Departure Time 1840
Departure Time Zone HST
Destination Same as Local Flt --
Destination Airport Code MKK
Destination City MOLOKAI
Destination State HI
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --