- Date
- April 3, 1987, 02:33 local (07:33 UTC)
- Place
- Miami, FL
- Injuries
- 4 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N506ESPiper PA-31-350
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed · report April 25, 1988
- Report
- Approved by Office Director
- FAA report
- 19870403010459A
- Case key
- 31888
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.
Airframe/component/system failure/malfunction
Propeller system/accessories,blade - loss,totalFactor
Propeller system/accessories,hub - failure,totalCause
Maintenance,major repair - not performedCause
ComplacencyCause
Forced landing
Analysis
During climb to cruise the pilot lost one blade of the three bladed right propeller, due to the failure of the hub. Examination of the propeller and engine revealed that the crankshaft counterweight bushings were not installed allowing a high frequency vibration to exist, causing the failure of the hub.
Aircraft
- Registration
- N506ES
- Reported as
- Piper PA-31-350
- Category
- Airplane
- Serial number
- 31-7952234
- Airframe hours
- 3,742
- Engine
- Lycoming LTIO-540-J2BD, 350 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Positioning · Part 91
- Registered owner
- Dolphin Aviation
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · January 26, 1987 · 20 hours before
- Departed
- MIA · Miami, FL
- Destination
- SRQ · Sarasota, FL
- Flight plan
- IFR
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 32
- Certificate
- 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
- 3,265 total · 123 in this make and model · 3,105 as pilot in command · 127 in the last 90 days · 9 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 130° at 3 knots
- Visibility
- 7 statute miles
- Lowest ceiling
- None
- Temperature
- 63 °F, dew point 52 °F
- Altimeter
- 30.00 inHg
- Observed at
- MIA, 6 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.