Aircraft Accident/Incident Report

Desert Center, California 92239
Saturday, October 11, 1997 13:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The aircraft is equipped with dual electronic ignition instead of magnetos. After leveling off on top, the pilot noticed that his panel indicated a loss of electrical power. After the battery was depleted, the engine quit and the aircraft descended into IMC conditions. After breaking out, he initiated a forced landing. The aircraft struck a berm and slid to a stop. The pilot stated that the alternator switch was on and that the alternator out warning light had not illuminated prior to his electrical loss. After recovery, the batteries were charged and the engine was started. When the alternator switch was moved to the off position, the alternator out warning light did not illuminate. The continuity of the light bulb was confirmed. The light socket failed a similar continuity check. The flight instructor who checked the pilot out in the aircraft reported that he did not always use the checklist and had forgotten to turn the alternator switch on before starting on several occasions.

NTSB Probable Cause Narrative

A loss of engine power due to the eventual loss of electrical power which resulted from the pilot's failure to ensure the alternator switch was on as specified in the before starting checklist. The inoperative alternator out warning light was a factor in this accident.

Event Information

Type of Event Accident
Event Date 10/11/1997
Event Day of the Week Saturday
Time of Event 1315
Event Time Zone Pacific Daylight Time
Event City DESERT CENTER
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92239
Event Date Year 1997
Event Date Month 10
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1251 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 103
Weather Observation Facility ID BLH
Elevation of weather observation facility 397
Distance of event from weather observation facility (units?) 38
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 20000
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Unknown
Wind Speed (knots) 14
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 25
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1552
NTSB Notification Source --
NTSB Notification Date Oct 11 1997 12:00AM
NTSB Notification Time 1516
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:37PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N153JC
NTSB Number LAX98LA025
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Ciernia
Aircraft Model GLASAIR-III
Aircraft Series Identifier GLASAIR-II
Aircraft Serial Number 3236
Certified Max Gross Weight 2500
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 11 1997 12:00AM
Airframe hours since last inspection 20
Airframe Hours 20
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name JAMES RICHARD CIERNIA
Aircraft Owner Street Address 153 COUNTRY CLUB DRIVE
Aircraft Owner City SAN LUIS OBISPO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93401
Operator is an individual? --
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? 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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code PHX
Departure City PHOENIX
Departure State AZ
Departure Country
Departure Time 1145
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code SBP
Destination City SAN LUIS OBISPO
Destination State CA
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --