Long Beach/Daugherty Field Airport
Aircraft Accident/Incident Report

Long Beach, California 90815
Wednesday, March 21, 2001 11:45 PST

NTSB Narrative Summary Released at Completion of Accident

During an autorotation, the pilot made a hard landing and the tail boom was severed. The purpose of the flight was to conduct pattern work, and takeoffs and landings to prepare the private pilot for his commercial pilot practical test flight. During the flight the private pilot was on the flight controls, with the CFI monitoring the flight. No discrepancies were noted with the first two takeoffs and landings. During the first autorotation, the CFI noted that the student allowed the airspeed to fall below 60 knots, and that the rotor rpm was moving outside the top of the green arc. He instructed the student to maintain airspeed at 65 knots until close to the ground, and to raise the collective to maintain rotor rpm inside the green arc. On the second autorotation, the CFI noted that the student maintained rotor rpm inside the green arc, but let the airspeed fall below 58 knots. The low rotor rpm warning horn sounded and the caution light illuminated. Due to the close proximity of the helicopter to the ground, a flare for landing was initiated. The CFI came up on the controls and noted that the collective was higher than normal. Prior to touchdown the CFI applied forward pressure on the cyclic to maintain a level attitude after touchdown. The helicopter landed hard and slid across the ground before coming to rest in a grassy area next to the helipad. The CFI noted that after coming to a stop he attempted to move the anti-torque pedals, but did not receive a response.

NTSB Probable Cause Narrative

Failure of the CFI to adequately monitor the flight, which resulted in a low airspeed autorotation and hard landing.

Event Information

Type of Event Accident
Event Date 3/21/2001
Event Day of the Week Wednesday
Time of Event 1145
Event Time Zone Pacific Standard Time
Event City Long Beach
Event State CALIFORNIA
Event Country --
Zipcode of the event site 90815
Event Date Year 2001
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 334903N
Event Location Longitude 1180905W
Event Location Airport LONG BEACH/DAUGHERTY FIELD
Event Location Nearest Airport ID LGB
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 58
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1206 Pacific Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID LGB
Elevation of weather observation facility 58
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 2
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30.05
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 10949
NTSB Notification Source FAA
NTSB Notification Date Mar 21 2001 12:00AM
NTSB Notification Time 1228
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Nov 6 2001 9:00AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-LGB-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8492A
NTSB Number LAX01LA125
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R22B
Aircraft Series Identifier --
Aircraft Serial Number 1824
Certified Max Gross Weight 1370
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 12 2001 12:00AM
Airframe hours since last inspection 38
Airframe Hours 5729
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Rainbow Air Academy, Inc.
Aircraft Owner Street Address 2825 E. Spring St.
Aircraft Owner City Long Beach
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 90806
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code LGB
Departure City Long Beach
Departure State --
Departure Country USA
Departure Time 1115
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code LGB
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 23 2001 4:45AM
User who most recently changed record dbo
Since inspection or accident Last Inspection
Event Location Runway Number and Location H1
Runway Length 20
Runway Width 20
Sight Seeing flight No
Air Medical Flight No
Medical Flight --