LAX95LA196

NTSB accident investigation · Rolladen-Schneider LS-6 · Montague, CA · May 27, 1995

Accident · Serious injuriesLimited investigationFinal report
Date
May 27, 1995, 12:30 local (19:30 UTC)
Place
Montague, CA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N64UWRolladen-Schneider LS-6
Weather
Visual (VMC) · Day
Status
Completed · report November 30, 1995
Report
Approved by Office Director
FAA report
19950527014439A
Case key
29104

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 pilot's failure to properly connect the aileron/flaperon quick disconnect fitting during assembly of the glider, and his inadequate preflight inspection.

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.

Loss of control - in flightTakeoff - initial climb
Flt control syst,aileron control cable/rod - not connectedCause
Maintenance,installation - not performedPilot in commandCause
Aircraft preflight - inadequatePilot in commandCause
Aircraft control - not possiblePilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Ground witnesses observed the accident sequence and reported that the glider was being towed aloft by a tow plane. The witnesses said the tow plane lifted off normally; however, the glider did not seem to lift off in a normal manner. As the glider achieved about 50 feet AGL, the pilot released the tow line. The glider then banked slightly to the left, then rolled to the right. The right roll continued until the glider was at a very steep bank angle and entered a spiral, which continued to ground impact. According to the witnesses, no one saw the pilot perform a control continuity check after assembly of the glider prior to takeoff. A FAA airworthiness inspector responded to the accident site and examined the glider. He reported that the glider is equipped with quick disconnect fittings on the control system push/pull tubes in the wing center section. The fittings allow the control system to be disconnected and reconnected as the wings are removed or installed. The right aileron/flaperon fitting was found disconnected.

Factual narrative

On May 27, 1995, at 1230 Pacific daylight time, a Rolladen- Schneider LS-6 glider, N64UW, collided with the ground following a loss of control during the takeoff initial climb at the Montague-Yreka Rohrer Field, Montague, California. The glider was owned and operated by the pilot and was beginning a local area personal flight. Visual meteorological conditions prevailed at the time and included calm wind conditions. No flight plan was filed. The glider sustained substantial damage. The certificated commercial pilot, the sole occupant, incurred serious injuries.

Ground witnesses observed the accident sequence and reported that the glider was being towed aloft by a tow plane. The witnesses said the tow plane lifted off normally; however, the glider did not seem to lift off in a normal manner. As the glider achieved about 50 feet agl, the pilot released the tow line. The glider then banked slightly to the left, then rolled to the right. The right roll continued until the glider was at a very steep bank angle and entered a spiral, which continued to ground impact.

According to the witnesses, no one saw the pilot perform a control continuity check after assembly of the glider prior to takeoff.

A Federal Aviation Administration (FAA) airworthiness inspector from the Sacramento, California, Flight Standards District Office responded to the accident site and examined the glider. He reported that the glider is equipped with quick disconnect fittings on the control system push/pull tubes in the wing center section. The fittings allow the control system to be disconnected and reconnected as the wings are removed or installed. The right aileron/flaperon fitting was found disconnected.

Aircraft

Registration
N64UW
Reported as
Rolladen-Schneider LS-6
Category
Glider
Serial number
6103
Airframe hours
606
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William S. Tittle
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · November 1, 1994 · 17 hours before
Departed
IO5
Airport
105 · Montague/Yreka Roher, runway 32, 3,400 × 60 ft, asphalt

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
50
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
2,100 total

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
25 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 41 °F
Altimeter
30.00 inHg
Observed at
SIY, 8 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.