Eurocopter AS-350B-2 N6007S

Summary

On 10 September 1999 at about 20:04 local time, a Eurocopter AS-350B-2 registered N6007S was involved in an accident near Juneau, Alaska, United States. 6 people were on board and one was seriously injured, 5 had minor injuries. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

10 September 1999 at 20:04

Classification

Accident

Location

Juneau, Alaska, United States

Coordinates

58.5797, -134.7705

Aircraft

Eurocopter AS-350B-2

Registration

N6007S

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 135: Air Taxi & Commuter

Purpose of flight

Unknown

Phase of flight

Not recorded

Aircraft damage

Destroyed

Weather

IMC

Light

Day

NTSB number

ANC99FA139

1 person was seriously injured.

The pilot's continued flight into instrument meteorological conditions (IMC), and inadequate altitude/clearance. Factors associated with the accident were flat light and whiteout conditions, snow, and snow-covered terrain. An additional factor was the FAA's inadequate certification/approval of the operator's training manual, which did not require the operator to provide instrument training or instrument flight proficiency checks to its pilots.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The certificated commercial helicopter pilot, with five passengers aboard, was attempting to return to the Juneau International Airport after completion of an ice field sightseeing tour flight. During a gradual descent, over a large, featureless, and snow-covered ice field, a localized snow shower momentarily reduced his forward visibility. The pilot reported he slowed the helicopter to about 70 knots and attempted to use a mountain range on the left side of the helicopter for visual reference. He said: 'The visibility got to a point where I was unable to discern any topographic features, only a dark shape on the horizon.' He added that 'flat light conditions' contributed to his inability to recognize any topographical features on the ice surface. The helicopter continued to descend, struck the snow-covered ice field, slid about 150 feet, and nosed over. The pilot reported that there were no preaccident mechanical anomalies with the helicopter. The helicopter was not equipped with a radar altimeter, and the pilot did not hold an instrument rating. The pilot received no emergency instrument training from the company, nor did the company require him to demonstrate the ability to maneuver the helicopter solely by reference to the installed flight instruments. FAA Order 8400.10 requires Principal Operations Inspectors, and approved company check airmen, to have pilots demonstrate their ability to control a helicopter solely by reference to flight instruments during 14 CFR 135.293 competency checks for VFR-only helicopter operations. The operator's FAA-approved training manual did not require training or competency checks of the pilot's ability to maneuver the helicopter solely by reference to flight instruments.

Quoted verbatim from the NTSB record.