SEA97TA012

NTSB accident investigation · Garlick UH-1H · Detroit, OR · October 20, 1996

Accident · Minor injuriesFinal report
Date
October 20, 1996, 16:40 local (23:40 UTC)
Place
Detroit, OR
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N98NWGarlick UH-1H
Weather
Visual (VMC) · Day
Status
Completed · report August 21, 1997
Report
Approved by Office Director
FAA report
19961020047659A
Case key
42699

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

On this page

Probable cause

the pilot's misjudgement of rotor clearance from the terrain. The proximity of the berm was a related factor.

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.

On ground/water encounter with terrain/waterLanding
Terrain condition - bermFactor
Clearance - misjudgedPilot in commandCause

Analysis

The pilot stated that he had just landed at a remote site after emptying his bucket. As he unloaded the main rotor, it contacted a berm on the right side of the helicopter. This resulted in a sudden stoppage and damage to the transmission.

Factual narrative

On October 20, 1996, approximately 1640 Pacific daylight time, a Garlick UH-1H helicopter, N98NW, sustained substantial damage when the main rotor collided with terrain during landing near Detroit Lake, Detroit, Oregon. The airline transport pilot received minor injuries. The helicopter was being operated by the US Forest Service, and was being used to spread fertilizer on the Willamette National Forest. No flight plan was filed for the flight, which was conducted in visual meteorological conditions as a public use activity. There was no report of the ELT actuating, and the pilot turned it off after the accident.

The pilot stated that he had just landed after emptying his bucket. As he unloaded the rotor, the main rotor contacted a berm on the right side of the helicopter, causing sudden stoppage and separation of the transmission, and additional damage.

Aircraft

Registration
N98NW
Reported as
Garlick UH-1H
Category
Helicopter
Serial number
4529
Airframe hours
12,360
Engine
Lycoming T55-L-13B, 1,400 horsepower, turbo shaft
Damage
Substantial damage
Flight
Public aircraft · Public use
Operator
Usfs
Registered owner
Reynolds Aviation, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Continuous airworthiness · October 3, 1996 · 23 hours before

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
37
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
5,700 total · 2,000 in this make and model · 5,250 as pilot in command · 200 in the last 90 days · 45 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
34 °F
Altimeter
29.00 inHg

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 N98NW · 1

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