WPR10CA478

NTSB accident investigation · Robinson R22 · Portland, OR · September 30, 2010

Accident · No injuriesData collectionFinal report
Date
September 29, 2010, 17:45 local (Sep 30, 2010, 00:45 UTC)
Place
Portland, OR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N856HARobinson R22
Defining event
Taxi-from runway: Prop/jet/rotor blast/suction
Weather
Visual (VMC) · Day
Status
Completed · report March 16, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20100929046319A
Case key
77460

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

On this page

Probable cause

The student pilot's decision to hover-taxi behind a jet, resulting in the helicopter encountering jet wash and rolling over.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Info processing/decision: decision making/judgmentPersonnel issues › Action/decision · Student/instructed pilotRobinson Helicopter R22 MARINER: 1 caseAll aircraft: 3,098 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot stated that he was returning to his home airport when the accident occurred. On final approach, the pilot noted another helicopter was at the parking area, so he altered his course towards taxiway "A" and finished his approach coming to a hover about 3 to 5 feet above the ground. He then commenced to hover-taxi to his parking spot. The student pilot stated that in order to reach his intended parking spot he would have to pass behind an Embraer jet that was holding short of the runway. The pilot reported that he was not expecting the jet blast produced by the turbine engines, and as the helicopter passed behind the airplane, it yawed to the left and rolled onto its side, impacting the ground. According to witnesses, the accident helicopter passed about 30 feet behind the jet at an altitude of about 3 feet above the ground.

Factual narrative

The pilot said he was returning to his home airport when the accident occurred. On final approach, the pilot noted another helicopter was at the parking area, so he altered his course towards taxiway "Alpha" and finished his approach coming to a hover about 3 to 5 feet above the ground. He then commenced to hover-taxi to his parking spot. The student pilot stated that in order to reach his intended parking spot he would have to pass behind an Embraer jet that was holding short of the runway. The pilot reported that he was not expecting the jet blast produced by the turbine engines, and as the helicopter passed behind the airplane, it yawed to the left and rolled onto its side, impacting the ground. According to witnesses, the accident helicopter passed 10 meters (33 feet) behind the jet, at an altitude of about 3 feet above the ground.

Aircraft

Registration
N856HA
Reported as
Robinson R22 (MARINER)
Category
Helicopter
Serial number
1894m
Airframe hours
8,830
Engine
Textron Lycoming O-320-B2C, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Hillsboro Aviation Inc
Registered owner
Hillsboro Aviation Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 2, 2010 · 66 hours before
Departed
7S5 · Independence, OR
Destination
HIO · Portland, OR
Flight plan
VFR
Airport
HIO · Portland-Hillsboro Airport, runway 30, 6,600 × 150 ft, asphalt

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
43
Injuries
Minor
Certificate
Student
Medical
Class 1, Without waivers/limitations
Seat
Right
Flight hours
76 total · 76 in this make and model · 5 as pilot in command · 76 in the last 90 days · 23 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
45° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 57 °F
Altimeter
30.12 inHg
Observed at
HIO

Docket · 2

The files NTSB released with the investigation on November 8, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 635 KB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N856HA · 1

Matched to the same aircraft by N-number and date.