Chinle Airport
Aircraft Accident/Incident Report

Chinle, Arizona 86503
Sunday, August 27, 1995 20:03 MST

NTSB Narrative Summary Released at Completion of Accident

The aircraft is based at the dirt airstrip to provide aeromedical evacuation capability for the Navajo Nation. The pilot landed on runway 17 to avoid obstacles on the approach end of runway 35 during the night landing. The Navajo authorities said the winds were southerly at about 30 knots when the aircraft attempted to land. The windsock is not illuminated, and neither the airport nor the CTAF are attended after dark. The pilot said that after touchdown as the aircraft passed the hangar he observed the windsock sticking straight out indicating a tailwind. The pilot said he applied maximum braking, but could not stop prior to over running the departure end of the runway. The aircraft traveled down an embankment, through a ditch, and collided with two steel irrigation posts before coming to rest. FAA inspectors traveled to the accident site and examined both the runway and the aircraft. The touchdown point for the aircraft was identified as about the midpoint of the runway. Tire marks were apparent from that point to where the aircraft left the departure end of the runway and went through a cattle guard. A ditch was associated with the cattle guard. The FAA inspector said the ground distance traveled from the touchdown point was about the normal ground roll for the aircraft under the reported 20- to 30-knot tailwind condition. No discrepancies were identified with the aircraft.

NTSB Probable Cause Narrative

the pilot's selection of a runway inappropriate for the tailwind condition and his resultant failure to achieve a touchdown point which would allow the aircraft to stop prior to over running the departure end. The rough condition of the dirt runway, the lack of lighted wind indicators, and the operator's failure to develop procedures for night operations at the airport are factors in the accident.

Event Information

Type of Event Accident
Event Date 8/27/1995
Event Day of the Week Sunday
Time of Event 2003
Event Time Zone Mountain Standard Time
Event City CHINLE
Event State ARIZONA
Event Country --
Zipcode of the event site 86503
Event Date Year 1995
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CHINLE AIRPORT
Event Location Nearest Airport ID Q32
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 5515
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1957 Mountain Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID Q32
Elevation of weather observation facility 5515
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MST
Lighting Conditions Night/Dark
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 10000
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) 25
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 30
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 7500
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) 1522
NTSB Notification Source --
NTSB Notification Date Aug 27 1995 12:00AM
NTSB Notification Time 2036
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:31PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N745CA
NTSB Number LAX95LA315
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 CESSNA
Aircraft Model 421C
Aircraft Series Identifier 421C
Aircraft Serial Number 421C-1043
Certified Max Gross Weight 7450
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 4
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jun 28 1995 12:00AM
Airframe hours since last inspection 89
Airframe Hours 4087
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name CRITICAL AIR MEDICINE, INC.
Aircraft Owner Street Address 4141 KEARNY VILLA ROAD
Aircraft Owner City SAN DIEGO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92123
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 IDUA
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Positioning
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 1840
Departure Time Zone MST
Destination Same as Local Flt crash at destination city
Destination Airport Code Q32
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 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 35
Runway Length 4200
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --