Bell 206B N60EA

Summary

On 24 October 2017 at about 20:40 local time, a Bell 206B registered N60EA was involved in an accident near Groom, Texas, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

24 October 2017 at 20:40

Classification

Accident

Location

Groom, Texas, United States

Coordinates

35.2222, -101.2381

Aircraft

Bell 206B

Registration

N60EA

Category

Helicopter

Year built

1976

Engines

1

Operator

Not recorded

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Route

Groom → Groom

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN18LA020

Nobody was injured.

The total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s decision to operate the helicopter with minimum fuel on board.

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

Read the full NTSB narrative

The commercial pilot of the helicopter stated that there were 20 gallons of fuel on board when he departed on the aerial application flight. He flew to a 43-acre field and made steep turns while spraying the field. After dispensing the chemical, he made a steep, "hard right turn" en route to the operator's base, which was located about 3/4 mile west of the field. About 40 seconds after making the hard right turn and with the fuel gauge indicating 10 gallons remaining, the helicopter was on approach for landing. While on a right base leg to the landing zone and about 40 ft above ground level with about 35 kts airspeed, the pilot felt the "tail wag," and the engine stopped producing power. He performed an autorotation, but the tail impacted the ground during the landing flare, which resulted in substantial damage to the helicopter. During the examination of the helicopter, 2 spoons full of fuel were drained from the airframe fuel filter assembly. When the fuel boost pumps were turned on, they initially sounded as though they were cavitating. With the fuel boost pumps running, 7 gallons of fuel were drained from the fuel tank through the airframe fuel filter assembly. The engine was removed from the airframe and placed on a test cell, where it operated normally. The helicopter flight manual stated that, if installed, the FUEL LOW light would illuminate with about 20 gallons of fuel remaining. It stated that, if this light illuminated, the pilot should, "Land as soon as practical." The flight manual also contained a warning that, "Operation with both fuel boost pumps inoperative is not authorized. Due to possible fuel sloshing in unusual attitudes or out of trim conditions and one or both fuel boost pumps inoperative, the unusable fuel is 10 gallons." It is likely that the engine experienced a total loss of power due to fuel starvation; however, the reason for the fuel starvation was not determined. The pilot decided to operate the helicopter with less than 20 gallons of fuel, and 7 gallons of fuel were found in the helicopter after the accident occurred. The final, steep right turn likely was uncoordinated, and it might have caused the fuel pickup in the tank to become unported, allowing air into the fuel line. However, the pilot reported that the boost pump circuit breakers were in, and they should have been able to deliver fuel to the fuel filter assembly.

Quoted verbatim from the NTSB record.