- Date
- August 27, 1988, 14:35 local (20:35 UTC)
- Place
- Jackson Hole, WY
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N9528MMooney M20F
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 6, 1989
- Report
- Approved by Office Director
- FAA report
- 19880827035729A
- Case key
- 17383
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.
Analysis
The pvt plt obtained his instrument rating 14 days prior to the accident. 12 hrs of actual instrument flt time was logged in March of 1987. The remaining instrument flt time was simulated. Visibility in the Jackson Hole area was reduced by smoke. The plt reported he was climbing thru 11,000 ft for 14,000 ft. the acft wreckage was found at 9,000 ft. the acft had struck two tall trees and fell vertically to the gnd. The acft weight was calculated to be near max gross and the CG was determined to be beyond the aft limit. The plt's total instrument flt time was 42 hours. The acft owners manual contains a warning which state 'up to 2,000 ft of altitude may be lost in a one-turn spin and recovery...the rate of rotation during the first portion of the spin is quite rapid and the occupants of the aircraft will likely become disoriented.'
Aircraft
- Registration
- N9528M
- Reported as
- Mooney M20F
- Category
- Airplane
- Serial number
- 670105
- Engine
- Lycoming IO-360-A1A, 200 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- Yoreck, Robert
- Registered owner
- Mid Western Services Ltd.
- Airworthiness certificate
- Standard, Normal
- Departed
- JAC
- Destination
- BJC · Broomfield, CO
- Flight plan
- IFR
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
- 50
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 1,020 total · 285 in this make and model · 940 as pilot in command · 86 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 3 statute miles
- Lowest ceiling
- None
- Temperature
- 72 °F, dew point 39 °F
- Altimeter
- 30.00 inHg
- Observed at
- JAC, 12 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.