20230509002709A

Accident · Substantial damage

FAA accident report · Robinson Helicopter R44 II · Skwentna, AK · May 9, 2023

Date
May 9, 2023 · 12:15 local
Place
Skwentna, AK
Airport
Skwentna
Phase of flight
Hover/Holding
Operating rules
Air taxi and commuter (Part 135)
Operator
EMVC
Damage
Substantial damage
Aircraft
N704T
NTSB investigation
NTSBANC23LA032
Reported as
Robinson Helicopter R44 II
People aboard
3
Fatal injuries
0
Other injuries
3
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
13,800 total389 in this make and model40 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Pilot and two passengers (180 lbs. And 160 lbs.) Plus gear (90LBS) in R44-II helicopter conducting survey around noon at first of three survey points. Fuel on board about 1.2 hrs (19 gal = 194 lbs.). It started snowing, they were going to return to base, then decided to try and complete one more task. Less than one mile from first survey site was a weather station ... With the weather station in view, pilot headed up the hill to get a photograph. They flew southbound from previous site towards met tower, up hillside, no indication of wind. The pilot stated he thought he was about 50 feet above ground in a hover when "we encountered white out conditions." The pilot said he was pulling about 22-23 inches of manifold pressure in out of ground effect hover. Pilot previously had lower terrain and brush in sight for reference, but did not have this visual reference upon initiating escape plan of pulling power and moving/turning right. Upon initiating power increase and right turn, skid gear came in contact with the terrain and the helicopter rolled over. Pilot and front passengers suffered minor cuts on hands "as front windshield had broke."

As the FAA filed it

PILOT AND TWO PASSENGERS (180 LBS. AND 160 LBS.) PLUS GEAR (90LBS) IN R44-II HELICOPTER CONDUCTING SURVEY AROUND NOON AT FIRST OF THREE SURVEY POINTS. FUEL ON BOARD ABOUT 1.2 HRS (19 GAL = 194 LBS.). IT STARTED SNOWING, THEY WERE GOING TO RETURN TO BASE, THEN DECIDED TO TRY AND COMPLETE ONE MORE TASK. LESS THAN ONE MILE FROM FIRST SURVEY SITE WAS A WEATHER STATION ... WITH THE WEATHER STATION IN VIEW, PILOT HEADED UP THE HILL TO GET A PHOTOGRAPH. THEY FLEW SOUTHBOUND FROM PREVIOUS SITE TOWARDS MET TOWER, UP HILLSIDE, NO INDICATION OF WIND. THE PILOT STATED HE THOUGHT HE WAS ABOUT 50 FEET ABOVE GROUND IN A HOVER WHEN "WE ENCOUNTERED WHITE OUT CONDITIONS." THE PILOT SAID HE WAS PULLING ABOUT 22-23 INCHES OF MANIFOLD PRESSURE IN OUT OF GROUND EFFECT HOVER.PILOT PREVIOUSLY HAD LOWER TERRAIN AND BRUSH IN SIGHT FOR REFERENCE, BUT DID NOT HAVE THIS VISUAL REFERENCE UPON INITIATING ESCAPE PLAN OF PULLING POWER AND MOVING/TURNING RIGHT. UPON INITIATING POWER INCREASE AND RIGHT TURN, SKID GEAR CAME IN CONTACT WITH THE TERRAIN AND THE HELICOPTER ROLLED OVER. PILOT AND FRONT PASSENGERS SUFFERED MINOR CUTS ON HANDS "AS FRONT WINDSHIELD HAD BROKE."

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.