Robinson R22 N1929T

Summary

On 2 June 1999 at about 02:00 local time, a Robinson R22 registered N1929T was involved in an accident near Glennallen, Alaska, United States. 2 people were 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

2 June 1999 at 02:00

Classification

Accident

Location

Glennallen, Alaska, United States

Coordinates

62.0995, -145.5293

Aircraft

Robinson R22

Registration

N1929T

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

Substantial

Weather

VMC

Light

Day

NTSB number

ANC99LA068

Nobody was injured.

The pilot's failure to maintain rotor RPM during takeoff. Factors associated with the accident were a downdraft, and uneven terrain.

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

Read the full NTSB narrative

The certificated commercial helicopter pilot reported that during a northerly departure from atop a 4,200 feet msl mountain, the rotor rpm dropped, and the low rotor warning horn sounded. He said that in an attempt to regain rotor rpm and arrest the decent, he rolled the throttle to the high position, increased collective pitch, and lowered the nose to gain airspeed. He said that the rotor rpm continued to decay, the helicopter impacted uneven terrain, and rolled over. The pilot stated: 'I just got into a downdraft on takeoff.' He added that there were no preaccident mechanical anomalies with the helicopter. The helicopter sustained substantial damage to the rotor system, and fuselage.

Quoted verbatim from the NTSB record.