WPR09CA272

NTSB accident investigation · Schweizer SGS 2-32 · Warner Springs, CA · May 30, 2009

Accident · No injuriesData collectionFinal report
Date
May 30, 2009, 16:30 local (23:30 UTC)
Place
Warner Springs, CA
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N5826VSchweizer SGS 2-32
Defining event
Maneuvering: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report August 13, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration FSDO
FAA report
20090530007149A
Case key
73938

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 maintain clearance from a tree while maneuvering in flight.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/infoPersonnel issues › Task performance · PilotSchweizer SGS 2-32: 1 caseAll aircraft: 111 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Response/compensationSchweizer SGS 2-32: 1 caseAll aircraft: 933 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

After being towed to altitude, the pilot of the glider began soaring above a mountain peak. After making several circular passes over the peak the glider began to descend, and the pilot initiated a turn to an adjacent ridge. As he passed over the ridge, he felt the glider sink and he initiated a descending right turn. During the turn, the pilot felt the glider "jolt" and yaw to the left. He verified that the flight controls functioned correctly, and initiated an uneventful straight-in approach and landing at the departure airport. Postaccident inspection revealed damage consistent with an in-flight collision with a tree. The glider sustained substantial damage to the left wing spar and aileron during the collision.

Factual narrative

After being towed to altitude, the pilot of the glider began soaring above a mountain peak. After making several circular passes over the peak the glider began to descend, and the pilot initiated a turn to an adjacent ridge. As he passed over the ridge, he felt the glider sink and he initiated a descending right turn. During the turn, the pilot felt the glider "jolt" and yaw to the left. He verified that the flight controls functioned correctly, and initiated an uneventful straight-in approach and landing at the departure airport. Postaccident inspection revealed damage consistent with an in-flight collision with a tree. The glider sustained substantial damage to the left wing spar and aileron during the collision.

Aircraft

Registration
N5826V
Reported as
Schweizer SGS 2-32
Category
Glider
Serial number
3
Airframe hours
9,344
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Sky Sailing Inc
Registered owner
Sky Sailing Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 3, 2009
Departed
CL35 · Warner Springs, CA
Destination
CL35 · Warner Springs, CA
Airport
CL35 · Warner Springs, runway 26, 4,700 × 70 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
41
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
February 22, 2009
Seat
Front
Flight hours
552 total · 184 in this make and model · 469 as pilot in command · 21 in the last 90 days · 10 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 9 knots
Visibility
8 statute miles
Lowest ceiling
800 ft broken
Temperature
64 °F, dew point 55 °F
Altimeter
29.95 inHg
Observed at
RNM, 26 nm away

Docket · 4

The files NTSB released with the investigation on June 17, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 610 KB in all.

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 N5826V · 3

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