North Las Vegas Airport
Aircraft Accident/Incident Report

Las Vegas, Nevada 89032
Thursday, July 21, 2005 17:07 PDT

NTSB Narrative Summary Released at Completion of Accident

The airplane descended into the ground during takeoff-initial climb on a local fire reconnaissance flight. Witnesses reported that airplane became airborne, but was not climbing, and it continued down the runway in a nose-up attitude in ground effect until impacting terrain about 600 feet southeast from the departure end of the runway. The ambient temperature was about 107 degrees Fahrenheit, and the density altitude was calculated at 5,878 feet mean sea level. On scene examination found the flaps in the 30-degree position, which also corresponded to the flap actuator position. The cockpit indicator for the flaps also showed a 30-degree extension. A subsequent bench test of the combined flap/gear selector valve was conducted. During the initial inspection, both the gear selector and the flap selector valves were bent, but otherwise operational. The "stop-pin" on the flap selector lever was missing. There was no leakage of fluid during this test. Examination of both engines revealed no abnormalities, which would prevent normal operations. The aircraft flight manual specifies that the flaps should be set at 1/4 down (10 degrees) for normal takeoff.

NTSB Probable Cause Narrative

The pilot's excessive selection of flaps prior to takeoff, which resulted in a failure to obtain/maintain an appropriate climb airspeed, and an inadvertent stall/mush during takeoff-initial climb. A factor contributing to the accident was a high density altitude.

Event Information

Type of Event Accident
Event Date 7/21/2005
Event Day of the Week Thursday
Time of Event 1707
Event Time Zone Pacific Daylight Time
Event City Las Vegas
Event State NEVADA
Event Country --
Zipcode of the event site 89032
Event Date Year 2005
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 361214N
Event Location Longitude 1151117W
Event Location Airport North Las Vegas
Event Location Nearest Airport ID VGT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 2205
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1653 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID VGT
Elevation of weather observation facility 2205
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 42
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.79
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious 2
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 22048
NTSB Notification Source FAA
NTSB Notification Date Jul 21 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 14 2007 2:53PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-FSDO-Las Vegas, NV

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7UP
NTSB Number LAX05GA243
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Aero Commander
Aircraft Model 680 FL
Aircraft Series Identifier --
Aircraft Serial Number 134929
Certified Max Gross Weight 8000
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 1 2005 12:00AM
Airframe hours since last inspection 39.4
Airframe Hours 8942.6
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Commander Northwest LTD
Aircraft Owner Street Address 3705 Arctic Blvd Ste 442
Aircraft Owner City Anchorage
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99503
Operator is an individual? No
Operator Name US Dept of Agriculture - Forest Service
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Washington
Operator State DC
Operator Country USA
Operator Zip code 20250
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) Public Use
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code VGT
Departure City Las Vegas
Departure State NV
Departure Country USA
Departure Time 1705
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code VGT
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Takeoff - roll/run
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 4 2007 11:54AM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location 12R
Runway Length 5000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --