- Date
- November 4, 1989, 15:00 local (23:00 UTC)
- Place
- Chilcoot, CA
- Injuries
- 1 serious
- Damage
- Destroyed
- Phase of flight
- Approach
- Aircraft
- N72598I.C.A. Brasov IS-28B2
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 25, 1992
- Report
- Approved by Office Director
- FAA report
- 19891104044349A
- Case key
- 41143
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 improper inflight planning. Contributing to the accident was a down draft and the pilot's lack of recent expereince in this aircraft type.
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
While flying over a mountain ridgeline, the pilot encountered downdrafts and loss of lift. He elected to land at a preselected off airport landing site at the base of the ridgeline. The aircraft impacted terrain while he was maneuvering in the traffic pattern for landing at the site. He had 3.7 hours PIC flt time in the IS-28B2 glider when the accident occurred.
Aircraft
- Registration
- N72598
- Reported as
- I.C.A. Brasov IS-28B2 (IS28-B2)
- Category
- Glider
- Serial number
- 83
- Airframe hours
- 323
- Engine
- unknown
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- Christopher Uebel
- Registered owner
- Christopher W Uebel
- Airworthiness certificate
- Standard, Aerobatic
- Last inspection
- Annual · June 3, 1989 · 8 hours before
- Departed
- 4SD · Reno, NV
- Destination
- 4SD
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
- 43
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Front
- Flight hours
- 748 total · 8 in this make and model · 616 as pilot in command · 8 in the last 90 days · 8 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 10° at 12 knots
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 72 °F, dew point 25 °F
- Altimeter
- 29.00 inHg
- Observed at
- RNO, 20 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.