- Date
- May 24, 1985, 09:35 local (14:35 UTC)
- Place
- Hamilton, TX
- Injuries
- 1 serious
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N853BMooney M20
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19850524020979A
- Case key
- 21758
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 plt stated the acft and engine assy had experienced execssive vibrations while in flt followed by the windshield being covered with oil immediately after the vibration started. The propeller assy had become loose from the engine mount and separated at impact. Only one bolt remained attached at impact. Metallurgical exam indicated a lack of torque which allowed vibratory and other high cycle stress to be felt by the bolts thereby initiating and propagating fatique cracks.
Aircraft
- Registration
- N853B
- Reported as
- Mooney M20
- Category
- Airplane
- Serial number
- 1014
- Airframe hours
- 2,180
- Engine
- Lycoming O-320, 150 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Registered owner
- Jrery C. Tongate
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · December 1, 1984 · 40 hours before
- Departed
- 68F · Teague, TX
- Destination
- BWD · Brownwood, TX
- Airport
- T21 · Hamilton Municipal, runway 35, 3,545 × 50 ft, asphalt
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 57
- Certificate
- Student
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 45 total · 45 in this make and model · 20 as pilot in command · 10 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.