- Date
- October 20, 1986, 11:00 local (15:00 UTC)
- Place
- Nashville, TN
- Injuries
- 1 minor, 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N2204ZBell 206B III
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19861020049549A
- Case key
- 7262
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 was in a descent toward a building in a downtown area which he wanted aerial photographs of. At about 1700 ft AGL he reported the helicopter jerked hard and yawed to the left. He initiated an autorotation and during the descent to the selected landing site he had to bleed off rotor RPM to clear wires across the apch path. A hard landing resulted in a street intersection. Post accident inspection revealed the spur adapter gearshaft forward splines were severely worn. The forward end of the gearshaft was fractured. The fracture had originated from the shaft spline teeth. The oil delivery tube for the forward spline lubrication did not meet requirements established by the engine manufacturer.
Aircraft
- Registration
- N2204Z
- Reported as
- Bell 206B III
- Category
- Helicopter
- Serial number
- 3516
- Airframe hours
- 2,395
- Engine
- Allison 250-C20B, 420 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Nelson C. Andrews
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · September 19, 1986 · 57 hours before
- Departed
- JWN · Nashville, TN
- Airport
- BNA · Nashville Metropolitan
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 29
- Certificates
- Airline transport, Private
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 1,453 total · 793 in this make and model · 1,326 as pilot in command · 25 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 110° at 3 knots
- Visibility
- 5 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F, dew point 52 °F
- Altimeter
- 30.00 inHg
- Observed at
- BNA, 5 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.