- Date
- October 11, 1989, 09:33 local (16:33 UTC)
- Place
- Goodyear, AZ
- Injuries
- 3 fatal
- Damage
- Destroyed
- Phase of flight
- Initial climb
- Aircraft
- N67536Beech F33A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 9, 1992
- Report
- Approved by Office Director
- FAA report
- 19891011039919A
- Case key
- 26595
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 inflight separation of one propeller blade due to a fatigue fracture of undetermined origin, and failure of the pilot to maintain control of the aircraft during an attempt to return to the runway. A factor in the accident was the oil covered windsheild, which hindered the pilot in maintaining outside visual references during a low altitude maneuver.
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 the takeoff initial climb, one propeller blade separated and the resulting imbalance caused the remaining propeller blade and hub to separate. Witnesses saw the aircraft pitch up, then enter a right turn, in an apparent maneuver to return to the runway. Witnesses saw the aircraft bank angle continue to steepen until the aircraft rolled over and entered a spin. Metallurgical examination of the failed blade revealed that it separated due to a fatigue fracture in the first full thread of the threaded shank portion, which fitted inside a ferruled fitting. Extensive metallurgical examination of the fracture failed to identify the initiating defect in the fatigue fracture. On site examination revealed that the windshield was heavily coated with engine oil.
Aircraft
- Registration
- N67536
- Reported as
- Beech F33A
- Category
- Airplane
- Serial number
- CE-1025
- Airframe hours
- 5,344
- Engine
- Continental IO-520-BB, 285 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Instructional · Part 91
- Operator
- Airline Training Center
- Last inspection
- AAIP · September 27, 1989 · 45 hours before
- Departed
- GYR
- Flight plan
- Company VFR
- Airport
- GYR · Litchfield, runway 21, 8,500 × 150 ft, asphalt
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
- 28
- Certificate
- Student
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Toxicology
- Performed
- Flight hours
- 68 total · 68 in this make and model · 39 as pilot in command · 68 in the last 90 days · 24 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point 46 °F
- Altimeter
- 30.00 inHg
- Observed at
- GYR
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.