- Date
- June 29, 1997, 17:10 local (Jun 30, 1997, 00:10 UTC)
- Place
- Jacumba, CA
- Injuries
- 1 minor, 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N18AGBurkhart Grob G-103-TWIN II
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 9, 1999
- Report
- Approved by Office Director
- FAA report
- 19970629016179A
- Case key
- 29823
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 abrupt rotation, which resulted in the breaking of the tow rope. A factor was the low altitude when the tow rope broke, precluding a landing on the runway.
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.
Analysis
The glider was being launched by a vehicle ground tow. About 250 feet agl, the tow row broke at the 'weak link.' The pilot reported that he might have been too aggressive during the rotation. He stated that he felt he was too far down the runway to land straight ahead, so he turned left intending to fly an abbreviated pattern. He stated that he lost altitude more rapidly than he had anticipated and could not complete the turn back to the runway. During the turn the glider descended and the left wing tip dragged through the vegetation. According to the pilot, the glider landed hard while skidding left and the main landing gear was sheared off.
Factual narrative
On June 29, 1997, at 1710 hours Pacific daylight time, a Burkhart Grob G-103-Twin II glider, N18AG, collided with terrain after aborting the takeoff climb when the tow rope broke at the Jacumba, California, airport. The glider was substantially damaged and the certificated commercial pilot received minor injuries. The passenger was not injured. The pilot was operating the glider as a personal flight when the accident occurred. Visual meteorological conditions prevailed at the time.
The pilot reported that the glider was being launched by a vehicle ground tow. He stated that about 250 feet agl, the tow row broke at the "weak link." He reported that he might have been too aggressive during the rotation. The pilot reported that he felt he was too far down the runway to land straight ahead, so he turned left, intending to fly an abbreviated pattern. He lost altitude more rapidly than he had anticipated and could not complete the turn back to the runway. During the turn the glider descended and the left wing tip dragged through vegetation. According to the pilot, the glider landed hard while skidding left and the main landing gear was sheared off.
Aircraft
- Registration
- N18AG
- Reported as
- Burkhart Grob G-103-TWIN II (G-103-TWIN)
- Category
- Glider
- Serial number
- 3714
- Engine
- unknown
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Associated Glider Club Of Sc
- Airworthiness certificate
- Standard, Normal
- Departed
- L78
- Airport
- L78 · Jacumba, runway 25, 2,510 × 100 ft, gravel
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
- 48
- Certificate
- Commercial
- Medical
- Unknown
- Seat
- Front
- Flight hours
- 668 total · 3 in this make and model · 41 in the last 90 days · 9 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 250° at 15 knots, gusting 20
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 97 °F, dew point 36 °F
- Altimeter
- 29.00 inHg
- Observed at
- IPL, 35 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.