ERA10CA051

NTSB accident investigation · Robinson Helicopter R44 · Morovis, PR · November 5, 2009

Accident · Minor injuriesData collectionFinal report
Date
November 5, 2009, 13:10 local (18:10 UTC)
Place
Morovis, PR
Injuries
1 minor, 3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N440MRobinson Helicopter R44
Defining event
Landing: Roll over
Weather
Visual (VMC) · Day
Status
Completed · report May 6, 2010
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20091105051049A
Case key
75018

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 pilot’s delayed attempt to go around.

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.

Action: delayed actionPersonnel issues › Action/decision · PilotRobinson Helicopter R44: 4 casesAll aircraft: 894 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

According to a Federal Aviation Administration inspector, the pilot flew the helicopter to one location (about 100 feet above sea level) where three adult passengers boarded, then flew to a landing pad at an elevation of 1,391 feet above sea level. According to the pilot, after one recognition pass, she began a "confined pinnacle approach." While on short final, the pilot decided to go around and added power, but the helicopter "did not respond accordingly." The low rotor rpm horn sounded and the low rotor rpm light illuminated. The pilot noted "no airspeed, no altitude," and continued to an "emergency landing." Upon touchdown, with the right skid partially off the landing pad, the helicopter rolled over to the left, resulting in damage to the rotor system and tail boom. The pilot also stated that the winds were calm and that the outside air temperature gauge indicated 24 degrees Centigrade. She further noted that there were no preaccident mechanical anomalies with the helicopter.

Factual narrative

According to a Federal Aviation Administration (FAA) inspector, the pilot flew the helicopter to one location (about 100 feet above sea level) where three adult passengers boarded, then flew to a landing pad at an elevation of 1,391 feet above sea level. According to the pilot, after one recognition pass, she began a "confined pinnacle approach." While on short final, the pilot decided to go around and added power, but the helicopter "did not respond accordingly." The low rotor rpm horn sounded and the low rotor rpm light illuminated. The pilot noted "no airspeed, no altitude," and continued to an "emergency landing." Upon touchdown, with the right skid partially off the landing pad, the helicopter rolled over to the left, resulting in damage to the rotor system and tail boom. The pilot also stated that the winds were calm and that the outside air temperature gauge indicated 24 degrees Centigrade. She further noted that there were no preaccident mechanical anomalies with the helicopter.

Aircraft

Registration
N440M
Reported as
Robinson Helicopter R44
Category
Helicopter
Serial number
0468
Airframe hours
916
Engine
Lycoming 0-540 SERIES, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Universal Aviation Vertical Group
Registered owner
Universal Aviation Vertical Group
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 25, 2009
Departed
NONE · Alta Vega, PR
Destination
NONE · Morovis, PR

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
Pilot
Age
38
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
August 30, 2009
Seat
Right
Flight hours
5,000 total · 400 in this make and model · 75 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F

Docket · 2

The files NTSB released with the investigation on December 29, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 419 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.