ATL85IA005

NTSB incident investigation · Bell 206B · Chamblee, GA · October 10, 1984

Incident · No injuriesIncident investigationFinal report
Date
October 10, 1984, 12:00 local (16:00 UTC)
Place
Chamblee, GA
Injuries
2 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N2756FBell 206B
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19841010072399I
Case key
6672

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

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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/malfunctionCruise - normal
Rotorcraft flight control,collective control - undeterminedCause
Rotorcraft flight control,collective control - locked
Forced landingLanding

Analysis

The plt attemped a descent and noticed the collective had locked up. Even with considerable pressure, he was unable to move the collective in either direction. He checked the system & made several remedial action attempts to no avail. An uneventful emerg landing was performed. A complete examination of the collective hydraulic system failed to disclose any system failure.

Aircraft

Registration
N2756F
Reported as
Bell 206B
Category
Helicopter
Serial number
2696
Airframe hours
2,117
Engine
Allison 250-C20B, 317 horsepower, turbo shaft
Damage
No damage
Flight
Part 135
Operator
Dooley Helicopter Inc.
Registered owner
Revco Helicopter Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 29, 1984 · 28 hours before
Departed
Highlands, NC
Destination
Chamblee, GA
Flight plan
VFR
Airport
PDK · Dekalb/Peachtree, runway 16, 3,996 × ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
7,903 total · 5,602 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 6 knots
Visibility
11 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 61 °F
Altimeter
30.00 inHg
Observed at
3

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.