- Date
- September 13, 1984, 06:58 local (12:58 UTC)
- Place
- Denver, CO
- Injuries
- 2 serious, 1 minor
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N99TVBell 206L-3
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840913054899A
- Case key
- 16239
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
Plt had slowed the helicopter to 30 KIAS using 50 to 60% pwr at an alt of 700 ft AGL. Plt the heard 'two beeps' from the eng out warning horn, saw eng out annunciator lights illuminate & the 'turbine neddle dropping.' Plt 'bottomed'the collective, lowering the nose, but helicopter descended while yawing left and right until contacting a creek bed. Inspection of the acft revealed the pc line was broken hust past the 90 deg bend where it connects to the gas producer fuel control. The other end of the break was concealed by a b-nut. Metallurgical testing revealed the line failed due to fatigue. Areas of fretting and dimpling were found on the line. The engine in N99TV was removed from the acft on 11/14/83 and again on 9/6/84. Each removal necessitated unfastening and fastening of the pc line.
Aircraft
- Registration
- N99TV
- Reported as
- Bell 206L-3
- Category
- Helicopter
- Serial number
- 51079
- Airframe hours
- 2,738
- Engine
- Allison 250-C30P, 435 horsepower, turbo shaft
- Damage
- Destroyed
- Flight
- Business · Part 91
- Registered owner
- Kbtv Broadcasting, Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · August 16, 1984 · 685 hours before
- Departed
- DEN · Denver, CO
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
- 48
- Certificates
- Airline transport, Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Right
- Flight hours
- 7,818 total · 7,518 as pilot in command · 15 in the last 90 days · 14 in the last 30 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 160° at 3 knots
- Visibility
- 50 statute miles
- Lowest ceiling
- 9,500 ft broken
- Temperature
- 57 °F, dew point 48 °F
- Altimeter
- 30.00 inHg
- Observed at
- DEN, 7 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.
Other investigations on N99TV · 1
Matched to the same aircraft by N-number and date.