DEN06CA124

NTSB accident investigation · Bell 47G-2 · Hayden, AL · September 9, 2006

Accident · No injuriesData collectionFinal report
Date
September 9, 2006, 10:30 local (14:30 UTC)
Place
Hayden, AL
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Standing
Aircraft
N23947Bell 47G-2
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration FSDO
FAA report
20060909019989A
Case key
64491

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

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Probable cause

engine fire for reasons undetermined.

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.

FireStanding - engine(s) operating
Reason for occurrence undeterminedCause

Analysis

According to the pilot, he had just performed an uneventful landing in his pasture and was allowing the engine to cool down before shutting it down. The pilot reported that one minute into the cool down, he reduced the throttle to seventeen hundred rpm. He felt heat on his back and turned around to see fire coming from the engine. As the pilot was attempting to egress from the helicopter, he fell backwards, grabbed the cyclic stick with the engine still running, and pulled it to the left side as he slid out. The helicopter was entirely consumed by fire. Due to the extent of the damage, the origin of the fire could not be determined.

Factual narrative

According to the NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, he had just performed an uneventful landing in his pasture and was allowing the engine to cool down before shutting it down. The pilot reported that one minute into the cool down, he reduced the throttle to seventeen hundred rpm. He felt "heat on [his] back" and turned around to see "fire coming from [the] engine." As the pilot was attempting to egress from the helicopter, he "fell backwards, grabbed the cyclic stick with [the] engine still running, and pulled it to the left side as [he] slid out." The helicopter was entirely consumed by fire. A Federal Aviation Administration inspector examined the helicopter. Due to the extent of the damage, the origin of the fire could not be determined.

Aircraft

Registration
N23947
Reported as
Bell 47G-2
Category
Helicopter
Serial number
2080
Airframe hours
4,900
Engine
Lycoming VO-435, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2006
Departed
3A1 · Cullman, AL
Destination
Hayden, AL
Airport
NA · Na

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
Student pilot
Age
62
Injuries
None
Certificate
Student
Seat
Left
Flight hours
205 total · 205 in this make and model · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 63 °F
Altimeter
30.12 inHg
Observed at
3A1, 20 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.