- Date
- August 23, 2009, 16:52 local (21:52 UTC)
- Place
- Tullahoma, TN
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N504BTJonker JS-1B
- Defining event
- Landing: Collision during takeoff/land
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 29, 2009
- Report
- Approved by Office Director
- NTSB office
- Eastern Region Aviation
- Parties
- FAA/FSDO
- Case key
- 74588
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 failure to maintain a proper glidepath while on approach, resulting in landing short of the runway.
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.
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
The pilot had completed his first flight in his newly purchased glider earlier in the day. He stated that the flight lasted about 2.3 hours and was "an absolute pleasure." A witness familiar with the make and model of the accident glider had flown alongside the accident pilot in an identical glider during the flight, and stated that the accident pilot's takeoff, flight, and landing were "textbook examples." During the second flight of the day, the accident pilot was towed to 1,000 feet above ground level for the purpose of making a traffic pattern flight with a subsequent landing. The pilot stated that the downwind leg of the traffic pattern turning to the base leg was "high." The pilot applied full flaps, and stated that on the final leg of the traffic pattern, his sight picture was "still high," and the runway was "easily made." The pilot's sight picture then "quickly" changed to "short of the runway," and he realized he would not clear the trees prior to the runway. The pilot pitched up to avoid the trees, and after clearing them, "unloaded the wings" and "dived" into a parking lot. The glider impacted the parking lot and came to rest after the left wing impacted a tree. The glider sustained substantial damage to the left wing and vertical stabilizer. Neither the pilot nor a Federal Aviation Administration inspector, who examined the glider after the accident, reported any mechanical malfunctions or anomalies. Several witnesses on the ground reported a noticeable subsidence of wind while the glider was on the final leg of the traffic pattern. The nearest weather reporting station, located approximately 50 miles northwest of the accident site, reported winds from 320 degrees at 10 knots at the time of the accident.
Factual narrative
The pilot had completed his first flight in his newly purchased glider earlier in the day. He stated that the flight lasted about 2.3 hours and was "an absolute pleasure." A witness familiar with the make and model of the accident glider had flown alongside the accident pilot in an identical glider during the flight, and stated that the accident pilot's takeoff, flight, and landing were "textbook examples." During the second flight of the day, the accident pilot was towed to 1,000 feet above ground level for the purpose of making a traffic pattern flight with a subsequent landing. The pilot stated that the downwind leg of the traffic pattern turning to the base leg was "high." The pilot applied full flaps, and stated that on the final leg of the traffic pattern, his sight picture was "still high," and the runway was "easily made." The pilot's sight picture then "quickly" changed to "short of the runway," and he realized he would not clear the trees prior to the runway. The pilot pitched up to avoid the trees, and after clearing them, "unloaded the wings" and "dived" into a parking lot. The glider impacted the parking lot and came to rest after the left wing impacted a tree. The glider sustained substantial damage to the left wing and vertical stabilizer. Neither the pilot nor a Federal Aviation Administration inspector, who examined the glider after the accident, reported any mechanical malfunctions or anomalies. Several witnesses on the ground reported a noticeable subsidence of wind while the glider was on the final leg of the traffic pattern. The nearest weather reporting station, located approximately 50 miles northwest of the accident site, reported winds from 320 degrees at 10 knots at the time of the accident.
Aircraft
- Registration
- N504BT
- Reported as
- Jonker JS-1B
- Category
- Glider
- Serial number
- 1B-004
- Airframe hours
- 122
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Barton L. Tate
- Registered owner
- Barton L. Tate
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · August 19, 2009
- Departed
- THA · Tullahoma, TN
- Destination
- THA · Tullahoma, TN
- Flight plan
- Unknown
- Airport
- THA · Tullahoma Regional, runway 36, 5,002 × 100 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
- 66
- Injuries
- None
- Certificates
- Flight instructor, Airline transport, Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- April 30, 2009
- Seat
- Single
- Flight hours
- 5,705 total · 3 in this make and model · 5,463 as pilot in command · 394 in the last 90 days · 61 in the last 30 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 320° at 10 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 73 °F, dew point 55 °F
- Altimeter
- 29.97 inHg
- Observed at
- BNA, 49 nm away
Docket · 4
The files NTSB released with the investigation on October 15, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.