- Date
- May 26, 1984, 10:46 local (17:46 UTC)
- Place
- Llano, CA
- Injuries
- 1 serious
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N7700Bölkow Phoebus A-1
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840526019259A
- Case key
- 23959
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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 flight
Weather condition - windshearCause
Airspeed(vs) - not maintainedCause
In flight collision with object
Object - tree(s)
Analysis
Circling in lift near a high ridge the sailplane encountered what the plt referred to as wind shear. Losing control, the sailplane collided with a tree before impacting the ground.
Aircraft
- Registration
- N7700
- Reported as
- Bölkow Phoebus A-1 (PHOEBUS A-)
- Category
- Glider
- Serial number
- 774
- Engine
- unknown
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Registered owner
- Chester C. Lyman
- Last inspection
- Annual · January 24, 1984 · 11 hours before
- Departed
- 101 · Llano, CA
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
- 68
- Certificate
- Private
- Medical
- Unknown, Valid Medical--no waivers/lim.
- Seat
- Center
- Flight hours
- 1,030 total · 1,030 in this make and model · 993 as pilot in command · 9 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 270° at 13 knots
- Visibility
- 50 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °F, dew point 41 °F
- Altimeter
- 29.00 inHg
- Observed at
- WJF, 30 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.