ANC88LA086

NTSB accident investigation · Hughes 369D · Kitoi Bay, AK · July 9, 1988

Accident · No injuriesLimited investigationFinal report
Date
July 8, 1988, 20:35 local (Jul 9, 1988, 04:35 UTC)
Place
Kitoi Bay, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1089DHughes 369D
Weather
Visual (VMC) · Day
Status
Completed · report June 9, 1989
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19880708025899A
Case key
5028

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Roll overTakeoff
Lift-off - restrictedFactor
Preflight planning/preparation - poorPilot in commandCause
Cyclic - improper use ofPilot in commandCause
Operation with known deficiencies in equipment - improper use ofPilot in commandCause

Analysis

The helicopter landed with the left skid against a survey stake which protruded from the ground about 6 inches. Upon liftoff the skid did not clear the metal stake before the helicopter started moving laterally to the left. The left skid remained against the metal stake and the helicopter rolled over on to its left side. The pilot stated later that the lateral trim motor had failed requiring 35 pounds of pressure to the right against the cyclic while at a hover.

Aircraft

Registration
N1089D
Reported as
Hughes 369D
Category
Helicopter
Serial number
510966D
Airframe hours
3,669
Engine
Allison 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Registered owner
Soloy Helicopters, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · July 7, 1988 · 6 hours before
Flight plan
Company VFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,218 total · 2,622 in this make and model · 3,531 as pilot in command · 223 in the last 90 days · 141 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 6 knots
Visibility
15 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
52 °F, dew point 48 °F
Altimeter
30.00 inHg
Observed at
ODK, 32 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N1089D · 1

Matched to the same aircraft by N-number and date.