SEA03LA072

NTSB accident investigation · Schempp-Hirth Cirrus · Ephrata, WA · April 26, 2003

Accident · Minor injuriesLimited investigationFinal report
Date
April 26, 2003, 13:50 local (20:50 UTC)
Place
Ephrata, WA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N3839Schempp-Hirth Cirrus
Weather
Visual (VMC) · Day
Status
Completed · report June 25, 2003
Report
Approved by Office Director
Parties
FAA-FSDO
FAA report
20030426007199A
Case key
56895

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 aircraft control while on final approach for landing. Low airspeed was a 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.

Loss of control - in flightApproach - vfr pattern - final approach
Aircraft control - not maintainedPilot in commandCause
Airspeed - lowPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The pilot reported that while returning to the airport for landing, he entered the traffic pattern downwind leg about one mile southwest of the airport after encountering "strong sinking air." The pilot stated that he flew a faster and lower then normal pattern, with "an abbreviated base to final in order to shorten the distance to the landing area." During the round out for final approach, approximately 10 feet AGL, he deployed the spoilers. The pilot was unsure if the airspeed was too low, or there was a gust of wind, when the right wing dropped and struck the ground. The glider pivoted to the right followed by the tail striking the ground. The pilot reported that the side loading applied to the landing gear resulted in substantial damage to the steel tubing structure and a puncture in the right wing skin.

Factual narrative

On April 26, 2003, approximately 1350 Pacific daylight time, a Schempp-Hirth Cirrus glider, N3839, registered to and operated by the pilot as a 14 CFR Part 91 personal flight, collided with the terrain while on final approach for landing at Ephrata Municipal, Ephrata, Washington. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local flight. The glider was substantially damaged and the commercial pilot, the sole occupant, received minor injuries. The flight originated from Ephrata at 1300.

During a telephone interview and subsequent written statement, the pilot reported that while returning to the airport for landing, he entered the traffic pattern downwind leg about one mile southwest of the airport after encountering "strong sinking air." The pilot stated that he flew a faster and lower than normal pattern, with "an abbreviated base to final in order to shorten the distance to the landing area." During the round out for final approach, approximately 10 feet above ground level, he deployed the spoilers. The pilot was unsure if the airspeed was too low, or there was a gust of wind, when the right wing dropped and struck the ground. The glider pivoted to the right followed by the tail striking the ground. The pilot reported that the side loading applied to the landing gear resulted in substantial damage to the steel tubing structure and a puncture in the right wing skin.

The 1353 Ephrata surface weather observation was reporting winds from 310 degrees at nine knots. The sky was clear with 10 miles visibility. The temperature was 10 degrees Celsius.

Aircraft

Registration
N3839
Reported as
Schempp-Hirth Cirrus
Category
Glider
Serial number
39
Airframe hours
1,695
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William S. Allan
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 15, 2003 · 4 hours before
Departed
EPH · Ephrata, WA
Airport
EPH · Ephrata Municipal, runway 20, 6,700 × 150 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
51
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
June 26, 2001
Seat
Center
Flight hours
1,116 total · 131 in this make and model · 1,017 as pilot in command · 23 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 32 °F
Altimeter
29.84 inHg
Observed at
EPH

FAA reports on this event · 1

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