- Date
- March 14, 1993, 20:00 local (Mar 15, 1993, 03:00 UTC)
- Place
- Lake Havasu, AZ
- Injuries
- 1 minor, 4 uninjured; on the ground: 1 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N466KTCessna 182
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed · report February 10, 1994
- Report
- Approved by Office Director
- FAA report
- 19930314007299A
- Case key
- 27946
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 improper welding of the inboard boss by an unknown person resulting in a fatigue failure on the inboard boss. A factor related to the accident was the vehicle that was struck during the forced landing.
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
During flight at 8000 feet, the engine lost power. The pilot tried to make a forced landing at Lake Havasu airport, but was unable to reach the airport. He selected a roadway about 2 1/2 miles south of the airport. During the final approach to the roadway, the airplane struck a vehicle. A metallurgical examination revealed that the number two cylinder's inboard boss had been welded. The weld repair is specifically prohibited by teledyne Continental motors specification mhs 217. This unapproved weld led to significant softening of the inboard boss, and a reduction of fatigue strength. The airplane records revealed that the cylinders had been purchased at a auction, and the cylinder's maintenance history is unknown. The airplane records did not reflect that any welding repairs were performed on the number two cylinder.
Aircraft
- Registration
- N466KT
- Reported as
- Cessna 182
- Category
- Airplane
- Serial number
- 18255870
- Airframe hours
- 3,451
- Engine
- Continental O-470-R, 230 horsepower, reciprocating
- Damage
- Substantial damage
- Fire
- In-Flight
- Flight
- Personal · Part 91
- Operator
- M. Kent Christopherson
- Registered owner
- M. Kent Christopherson
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · July 17, 1992 · 167 hours before
- Departed
- YUM · Yuma, AZ
- Destination
- SGU · St. George, UT
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
- 58
- Certificates
- Flight instructor, Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 21,605 total · 2,500 in this make and model · 21,305 as pilot in command · 240 in the last 90 days · 90 in the last 30 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 70° at 6 knots
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 43 °F
- Altimeter
- 29.00 inHg
- Observed at
- BLH, 67 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.