LAX90LA190

NTSB accident investigation · Schweizer SGS 1-26 · Waialua, HI · May 23, 1990

Accident · No injuriesLimited investigationFinal report
Date
May 23, 1990, 11:08 local (21:08 UTC)
Place
Waialua, HI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N15SHSchweizer SGS 1-26
Weather
Instrument (IMC) · Day
Status
Completed · report November 23, 1992
Report
Approved by Office Director
FAA report
19900523017089A
Case key
26816

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

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Probable cause

The failure of the pilot to maintain an adequate clearance from clouds.

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.

In flight encounter with weatherManeuvering
Weather condition - clouds
Weather condition - downdraft
Weather condition - rain
Terrain condition - mountainous/hilly
Clearance - not maintainedPilot in commandCause
Vfr flight into imc - inadvertentPilot in commandCause
In flight collision with objectManeuvering
Object - tree(s)

Analysis

The student pilot said that he was working the hill slopes in ridge lift when the glider was suddenly lifted into the clouds. The pilot said he tried to steer a northerly heading away from the hills but the glider only had basic instruments. The pilot said he descended out of the clouds and found himself less than 100 feet above a tree covered hill. The pilot said the glider collided with the tops of the trees and settled into the forest canopy.

Aircraft

Registration
N15SH
Reported as
Schweizer SGS 1-26
Category
Glider
Serial number
076
Engine
unknown
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Soar Hawaii, Ltd.
Registered owner
Soar Hawaii, Ltd
Departed
HDH · Mokuleia, Oahu, HI
Destination
HDH

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
33
Certificate
Student
Flight hours
51 total · 18 in this make and model · 33 as pilot in command · 7 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
65° at 7 knots
Visibility
7 statute miles
Lowest ceiling
300 ft broken
Temperature
82 °F, dew point -0 °F

FAA reports on this event · 1

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