- Date
- August 25, 1984, 10:30 local (16:30 UTC)
- Place
- Little America, WY
- Injuries
- 4 fatal
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N9150NAero Commander 690
- Weather
- Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840825043339A
- Case key
- 16502
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
About 10 min after takeoff at 1005 MDT, the plt was cleared to climb to FL 190. This was atc's last communication with the acft. At 1030:39, the controller attempted to contact the plt to advise that he had lost radar contact & to recycle the transponder & squawk 6062. There was no response. Two witnesses reported seeing the acft just before it impacted the ground. According to them, they saw fire &/or an explosion before impact & one witness reported the acft broke up after it came below an estimated 1000 to 1200 ft ceiling. However, the wreckage was scattered over a 2 mi area. An exam revealed evidence of a catastrophic in-flt breakup from overload which included positive overload of both wings. Radar data showed that just before radar contact was lost, the acft's speed varied beteen 221 & 272 KTS, heading varied from 072 to 014 deg & vertical velocity varied from +300 to -2400 ft/min. Thunderstorms, turbc, rain & cld tops to 25,000' were reported. Probable lgt to mod icing in clds above the freezing lvl (14,000'). Acft had wx radar aboard.
Aircraft
- Registration
- N9150N
- Reported as
- Aero Commander 690
- Category
- Airplane
- Serial number
- 11063
- Engine
- Garrett TPE 331, 718 horsepower, turbo prop
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Personal · Part 91
- Registered owner
- Dr. James P. Demetry
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · March 14, 1984
- Departed
- OGD · Ogden, UT
- Destination
- ARR · Aurora, IL
- 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
- 62
- Certificates
- Commercial, Private
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 3,410 total · 10 in the last 90 days
Weather
- Conditions
- Day
- Temperature
- 70 °F, dew point 50 °F
- Altimeter
- 30.00 inHg
- Observed at
- RKS, 57 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.