FTW84LA270

NTSB accident investigation · Bell 206B · South Pelto · June 8, 1984

Accident · Minor injuriesLimited investigationFinal report
Date
June 8, 1984, 13:00 local (18:00 UTC)
Place
South Pelto
Injuries
4 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2276QBell 206B
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840608070269A
Case key
21366

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.

Loss of engine power(total) - mech failure/malfCruise - normal
Compressor assembly,blade - failure,totalCause
Forced landingDescent - emergency
Autorotation - performedPilot in command
DitchingLanding - flare/touchdown
Terrain condition - water,roughFactor
Landing gear,float assembly - overload
Roll overLanding - flare/touchdown

Analysis

While cruising at 550 ft above the gulf of Mexico, the plt noted hi tot indications, followed by loss of N1 RPM & eng failure. An autorotation was initiated which terminated in a hard landing in 5 ft waves. One emergency float separated during the landing & the helicopter rolled over, but continued to float. A teardown of the eng revealed that a 2nd stage compressor wheel blade, p/n 6890502, had failed. This resulted in severe damage to the 2nd & 4th stage areas of the eng.

Aircraft

Registration
N2276Q
Reported as
Bell 206B
Category
Helicopter
Serial number
3629
Airframe hours
3,460
Engine
Allison 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Registered owner
Petroleum Helicopters Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · May 30, 1984 · 58 hours before
Departed
S Timbalier Blk, GM
Destination
Dulac, LA

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
28
Certificate
Commercial
Instrument ratings
Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
1,167 total · 252 in this make and model · 647 as pilot in command · 97 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 10 knots
Visibility
5 statute miles
Lowest ceiling
1,200 ft broken
Temperature
82 °F, dew point 72 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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