Aircraft Accident/Incident Report

Talkeetna, Alaska 99676
Wednesday, May 28, 2003 13:30 AKD

NTSB Narrative Summary Released at Completion of Accident

The airline transport pilot was conducting an on-demand charter flight in a wheel/ski-equipped airplane, with three passengers and climbing gear aboard. The flight was en route to a mountain climbing base camp located on a glacier, at the 7,200-foot msl level. A passing airplane discovered the accident airplane's wreckage at the 8,200-foot level of a remote mountain pass, along the anticipated flight route. The summit of the pass is situated about 9,000 feet msl, and oriented about east/west. The flight's anticipated direction of travel to the base camp was westbound. The airplane wreckage came to rest atop snow-covered glacial terrain, within a large "U" shaped, up-sloping valley, about 500 east of the pass summit. The nose of the airplane was oriented in the opposite direction of the flight's anticipated direction of travel. The airplane struck the snow-covered terrain in a near horizontal position, wings level, and about 5 degrees nose down. The NTSB investigator-in-charge documented all passenger, pilot, and cargo positions. After recovery, actual occupant and climbing gear/cargo weights were documented. The gross weight of the airplane at the time of the accident was estimated to be 20 pounds over the airplane's maximum gross weight limit of 3,350. Since there are no center of gravity (CG) limits for weights over maximum gross weight, the estimated CG of the airplane at the time of the accident, 154.1 inches, was compared to the limits at maximum gross weight, 140 to 156 inches, and found to be near the aft limit. No evidence of any preaccident mechanical anomalies was noted. The engine was placed on an engine test stand, started, and operated at various power settings, for an extended time. The engine produced its maximum rated rpm.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall, an uncontrolled descent and in-flight collision with terrain. A factor associated with the accident was rising terrain.

Event Information

Type of Event Accident
Event Date 5/28/2003
Event Day of the Week Wednesday
Time of Event 1330
Event Time Zone --
Event City Talkeetna
Event State ALASKA
Event Country --
Zipcode of the event site 99676
Event Date Year 2003
Event Date Month 5
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 625244N
Event Location Longitude 1510400W
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 1353 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 110
Weather Observation Facility ID PTKA
Elevation of weather observation facility 358
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation ADT
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) 20
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 330
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
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 Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 4
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 14506
NTSB Notification Source NPS VIA ANC FAA, ROC
NTSB Notification Date May 28 2003 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 30 2003 8:55AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Anchorage FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N70176
NTSB Number ANC03FA051
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? Yes
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 185
Aircraft Series Identifier --
Aircraft Serial Number 18502037
Certified Max Gross Weight 3350
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 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Aug 30 2002 12:00AM
Airframe hours since last inspection 95.3
Airframe Hours 7859.3
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name McKinley Air Service
Aircraft Owner Street Address P.O.Box 544
Aircraft Owner City Talkeetna
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99676
Operator is an individual? No
Operator Name McKinley Air Service
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O.Box 544
Operator City Talkeetna
Operator State AK
Operator Country USA
Operator Zip code 99676
Operator Code M6TC
Owner has at least one certificate --
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code TKA
Departure City Talkeetna
Departure State AK
Departure Country USA
Departure Time 1253
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code TKA
Destination City Talkeetna
Destination State AK
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 17 2003 2:19PM
User who most recently changed record PETL
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight Yes
Air Medical Flight No
Medical Flight --