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NTSB Report
May 21, 1988 · De Havilland DHC-2 · N1435Z
Anchorage, AK
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 21, 1988
Injury Outcomes
1 injury (1 fatality)
Location
Anchorage, AK
Aircraft
De Havilland DHC-2
Tail Number
N1435Z
Operator
Anglers Island Lodge
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
ANC88FA062
THE AIRPLANE HAD UNDERGONE EXTENSIVE MAINTENANCE WHICH INCLUDED WORK ON THE CONTROL COLUMN. THE UPPER HALF OF THE CONTROL COLUMN WAS REPLACED WITH A THROW-OVER YOKE AND THE AILERON SYSTEM WAS RERIGGED. THE PILOT-IN-COMMAND PICKED UP THE AIRPLANE AFTER IT WAS TIED DOWN OUTSIDE FOR THREE MONTHS. ACCORDING TO A WITNESS, THE AIRPLANE LIFTED OFF THE WATER AND STARTED A LEFT BANK WHICH INCREASED UNTIL THE AIRPLANE STRUCK THE GROUND. POST ACCIDENT EXAMINATION REVEALED THE CONTROL CABLES AT THE BASE OF THE CONTROL COLUMN OPERATED IN REVERSE OF THE DESCRIPTION IN THE MAINTENANCE MANUAL. COMPLETE CONTROL CONTINUITY COULD NOT BE CONCLUDED BECAUSE OF THE EXTENSIVE POST IMPACT FIRE WHICH DESTROYED THE OVERHEAD BELLCRANK, PULLEY, AND INTERCONNECT SYSTEM.
Full Narrative
THE AIRPLANE HAD UNDERGONE EXTENSIVE MAINTENANCE WHICH INCLUDED WORK ON THE CONTROL COLUMN. THE UPPER HALF OF THE CONTROL COLUMN WAS REPLACED WITH A THROW-OVER YOKE AND THE AILERON SYSTEM WAS RERIGGED. THE PILOT-IN-COMMAND PICKED UP THE AIRPLANE AFTER IT WAS TIED DOWN OUTSIDE FOR THREE MONTHS. ACCORDING TO A WITNESS, THE AIRPLANE LIFTED OFF THE WATER AND STARTED A LEFT BANK WHICH INCREASED UNTIL THE AIRPLANE STRUCK THE GROUND. POST ACCIDENT EXAMINATION REVEALED THE CONTROL CABLES AT THE BASE OF THE CONTROL COLUMN OPERATED IN REVERSE OF THE DESCRIPTION IN THE MAINTENANCE MANUAL. COMPLETE CONTROL CONTINUITY COULD NOT BE CONCLUDED BECAUSE OF THE EXTENSIVE POST IMPACT FIRE WHICH DESTROYED THE OVERHEAD BELLCRANK, PULLEY, AND INTERCONNECT SYSTEM.
Flight
Event TypeAccident
Event Time21:21 AKDT
Nearest AirportLake Hood Seaplane (0nm N)
Runway27
Runway Length4540 ft
Runway Width188 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftDe Havilland DHC-2
Tail NumberN1435Z
Aircraft CategoryAir
DamageDestroyed
OperatorAnglers Island Lodge
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-985-39 · Reciprocating · 450
Seats8
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 47 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 6 kt
Visibility90 sm
CeilingNone
Temperature / Dew Point48 / 34 C
Altimeter30.00 inHg
Observation Time23:52
Weather SourceWFAC