Aircraft Accident/Incident Report

Sacramento, California 95837
Monday, May 28, 1990 17:00 PDT

NTSB Narrative Summary Released at Completion of Accident

DURING AN INSTRUCTIONAL FLIGHT THE INSTRUCTOR AND THE STUDENT WERE MAKING AUTOROTATIONS AND TERMINATING THE DESCENT WITH A POWER RECOVERY. THEY DID NOT APPLY FULL CARBURETOR HEAT AS PRESCRIBED BY THE AIRCRAFT MANUFACTURER. UPON APPLYING RECOVERY POWER THE POWERPLANT FAILED TO RESPOND. THE AIRCRAFT CONTINUED ITS DESCENT AND IMPACTED THE TERRAIN.

NTSB Probable Cause Narrative

THE INSTRUCTOR PILOT'S FAILURE TO FOLLOW THE AIRCRAFT MANUFACTURER'S CHECKLIST BY NEGLECTING TO APPLY FULL CARBURETOR HEAT AT LOW POWER SETTINGS.

Event Information

Type of Event Accident
Event Date 5/28/1990
Event Day of the Week Monday
Time of Event 1700
Event Time Zone Pacific Daylight Time
Event City SACRAMENTO
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95837
Event Date Year 1990
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1740 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 327
Weather Observation Facility ID SAC
Elevation of weather observation facility 22
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1712
NTSB Notification Source --
NTSB Notification Date May 28 1990 12:00AM
NTSB Notification Time 2104
Fiche Number and/or location -used to find docket information 43203
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N649MB
NTSB Number LAX90LA199
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ROBINSON
Aircraft Model R-22B
Aircraft Series Identifier R-22B
Aircraft Serial Number 0649
Certified Max Gross Weight 1370
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Unknown
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name UNKNOWN
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name SACRAMENTO EXECUTIVE HEL. INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 6141 FREEPORT BLVD SUITE 220
Operator City SACRAMENTO
Operator State CA
Operator Country
Operator Zip code 95822
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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 No
Departure Airport Code SAC
Departure City SACRAMENTO
Departure State CA
Departure Country
Departure Time 1650
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code SAC
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --