Boise Air Terminal Airport
Aircraft Accident/Incident Report

Boise, Idaho 93705
Saturday, November 27, 1999 1:34 MST

NTSB Narrative Summary Released at Completion of Accident

After extending the gear for landing, the down-and-locked indication (green light) for the left main gear was not illuminated. The crew performed the emergency checklist procedures for abnormal gear extension with no success. The aircraft subsequently landed with the left main landing gear retracted. Inspection of the landing gear revealed that the pin (part number MY20248-001), which is part of the forward gear door lock, was corroded and cracked at the point of rotation, preventing proper movement of the gear door uplock.

NTSB Probable Cause Narrative

Failure of the forward gear door lock pin. An inoperative landing gear door and inadequate maintenance inspection of the aircraft were factors.

Event Information

Type of Event Accident
Event Date 11/27/1999
Event Day of the Week Saturday
Time of Event 134
Event Time Zone Mountain Standard Time
Event City BOISE
Event State IDAHO
Event Country --
Zipcode of the event site 93705
Event Date Year 1999
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport BOISE AIR TERMINAL
Event Location Nearest Airport ID BOI
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 2868
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 156 Mountain Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID BOI
Elevation of weather observation facility 2868
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MST
Lighting Conditions Night/Dark
Lowest Ceiling Height 7000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
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) 6
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1792
NTSB Notification Source --
NTSB Notification Date Nov 27 1999 12:00AM
NTSB Notification Time 1245
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record May 25 2001 4:45AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N216SA
NTSB Number SEA00LA025
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Dassault
Aircraft Model DA-20
Aircraft Series Identifier DA-20
Aircraft Serial Number 16
Certified Max Gross Weight 28660
Aircraft Category Airplane
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Oct 27 1999 12:00AM
Airframe hours since last inspection 142
Airframe Hours 28855
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RBS AVIATION GROUP
Aircraft Owner Street Address 57 GREENTREE DR.
Aircraft Owner City DOVER
Aircraft Owner State DE
Aircraft Owner Country
Aircraft Owner Zipcode 19904
Operator is an individual? --
Operator Name SMITH AIR, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 510 MT. OLEASENT RD.
Operator City HAMPTON
Operator State GA
Operator Country
Operator Zip code 30228
Operator Code ETHA
Owner has at least one certificate Yes - certificate holder
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code OMA
Departure City OMAHA
Departure State NE
Departure Country
Departure Time 110
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code BOI
Destination City
Destination State
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 25 2001 4:10AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 10L
Runway Length 10000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --