LAX02LA093

NTSB accident investigation · Saumure Exec 162F · Ramona, CA · February 24, 2002

Accident · No injuriesLimited investigationFinal report
Date
February 24, 2002, 09:20 local (17:20 UTC)
Place
Ramona, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N162KSSaumure Exec 162F
Weather
Visual (VMC) · Day
Status
Completed · report February 5, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20020224002409A
Case key
54248

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

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Probable cause

The pilot's failure to maintain adequate airspeed and main rotor rpm while performing a low altitude maneuver, which resulted in a loss of translational lift, a hard landing, and rollover on downhill terrain.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightManeuvering
Low altitude flight/maneuver - initiatedPilot in command
Airspeed - inadequatePilot in commandCause
Translational lift - not obtained/maintainedPilot in commandCause
Rotor rpm - not maintainedPilot in commandCause
Forced landingEmergency landing
Hard landingLanding - flare/touchdown
Roll overLanding - flare/touchdown
Terrain condition - downhill

Analysis

The helicopter entered into a descent after the pilot allowed the airspeed to slow below translational lift and he failed to maintain adequate main rotor rpm; the helicopter touched down hard on sloping terrain and rolled over. The pilot's passenger had been photographing a residence while the pilot was orbiting around the site, about 100 feet above ground level. While circling, the pilot allowed the helicopter's airspeed to decrease to 30 mph and the rotor rpm decreased. At the time, the helicopter was within about 100 pounds of its maximum gross weight.

Factual narrative

On February 24, 2002, about 0920 Pacific standard time, a Saumure Exec 162F, N162KS, rolled over during a hard touchdown on sloping terrain about 4 miles north of Ramona, California. The helicopter was owned and operated by the commercial certificated pilot, and it was substantially damaged. The private pilot and passenger were not injured during the personal flight that was performed under 14 CFR Part 91. Visual meteorological conditions prevailed, and no flight plan had been filed. The flight originated from Ramona about 0855.

The pilot reported to the National Transportation Safety Board investigator that he and his passenger were orbiting a residence about 2,000 feet mean sea level. The purpose of the flight was to take pictures of the residence. While circling, they were approximately 100 feet above the terrain elevation. The pilot stated that he allowed the helicopter's airspeed to decrease to about 30 mph, and it lost effective translational lift. At the time, the helicopter was within about 100 pounds of its maximum gross weight. The pilot additionally reported that he got behind the power curve, main rotor rpm decreased, and the helicopter began descending. The pilot indicated that to attempt a recovery in the mountainous area would have uncertain results. Therefore, he thought it best to make a precautionary landing. The touchdown was hard on the downhill terrain, and during the impact the right rear landing gear tube fractured. According to the pilot, no mechanical malfunctions were experienced with his helicopter.

Aircraft

Registration
N162KS
Reported as
Saumure Exec 162F
Category
Helicopter, amateur-built
Serial number
6345
Airframe hours
189
Engine
Rotorway RI-162, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Kenneth B. Saumure
Airworthiness certificate
Special, Experimental (Special)
Departed
RNM · Ramona, CA
Destination
RNM · Ramona, CA

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
36
Injuries
None
Certificates
Foreign, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
November 15, 2001
Seat
Right
Flight hours
475 total · 175 in this make and model · 314 as pilot in command · 30 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 37 °F
Altimeter
30.04 inHg
Observed at
RNM, 3 nm away

Docket · 1

The files NTSB released with the investigation on December 5, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 422 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.