- Date
- August 21, 1982, 09:25 local (13:25 UTC)
- Place
- Ho Ho Kus, NJ
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N57480Bell 206L-1
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 21, 1983
- Report
- Approved by Office Director
- FAA report
- 19820821040069A
- Case key
- 71038
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
While in straight and level flight at 1000 ft, the pilot heard a "pop" in the engine area. He noted that the turbine outlet temperature (tot) began an immediate rise to the high yellow area initially, the power was reduced to 50% torque and the tot returned to the green arc. The pilot started to divert, but after about 20 to 30 sec, the tot began rising again, so the torque was reduced to 30%. The helicopter was over an area of trees, but the pilot saw a culdesac. As he was approaching to land, the tot became uncontrollable and the engine was shut down. An autorotation was completed in a tail low attitude to prevent a ground run. During touchdown, the tailboom was severed aft of the horizontal stabilizer. Disassembly of the engine revealed that the second stage turbine nozzle, pn 6893952, had separated from the vane portion of the nozzle.
Aircraft
- Registration
- N57480
- Reported as
- Bell 206L-1
- Category
- Helicopter
- Serial number
- 45501
- Airframe hours
- 746
- Engine
- Allison 250C28B, 420 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Operator
- Emar Associates
- Registered owner
- Emar Associates
- Departed
- Moonachie, NJ
- Destination
- Moonachie, NJ
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
- 37
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Flight hours
- 5,174 total · 471 in this make and model · 2,508 as pilot in command · 116 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 350° at 12 knots
- Visibility
- 15 statute miles
- Temperature
- 156 °F
- Altimeter
- 29.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.