- Date
- August 28, 1987, 20:00 local (Aug 29, 1987, 03:00 UTC)
- Place
- Poston, AZ
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N8275GCessna 188B
- Weather
- Visual (VMC) · Dawn
- Status
- Completed · report April 24, 1989
- Report
- Approved by Office Director
- FAA report
- 19870828048899A
- Case key
- 25314
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
Just after liftoff one propeller blade separated from the hub near the outboard end of the associated ferrule fitting which induced a failure of the cranckshaft. The pilot made a forced landing, overran the runway end and nosed over. Metallurgical analysis indicated that the failure was due to a fatigue fracture with multiple origin points caused by a scratch. The analysis also suggested that all but the first three ferrule threads had been reworked in a post manufacture hand grinding process in accordance with a mccauley service bulletin specifying a hand grinding rework to remove sharp threads in the ferrule, which had been shown to produce prior fatigue fractures. In the area of the fatiguefracture, the first three threads of the ferrule were found with sharp edges. Maintenance records did not show the totaltime on this propeller since major overhaul.
Aircraft
- Registration
- N8275G
- Reported as
- Cessna 188B
- Category
- Airplane
- Serial number
- 18801280T
- Airframe hours
- 2,341
- Engine
- Continental IO-520-D, 300 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Western Arizona Ag Rotors
- Registered owner
- Campo Robert H
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · August 27, 1987 · 6 hours before
- Destination
- S 4
- Airport
- Camp Poston, runway 18, 1,800 × 60 ft, dirt
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
- 55
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Flight hours
- 19,500 total · 19,300 as pilot in command · 200 in the last 90 days · 35 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Dawn
- Visibility
- 5 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N8275G · 2
Matched to the same aircraft by N-number and date.