St. Mary's Airport
Aircraft Accident/Incident Report

St. Mary's, Alaska 99658
Friday, September 11, 1998 23:15 AKD

NTSB Narrative Summary Released at Completion of Accident

The certificated airline transport pilot was conducting a CFR Part 135 cargo flight to a remote airport. He was making a visual approach during dark night conditions in a twin-engine turboprop airplane. On the downwind portion of the landing approach, the pilot selected flaps down, but nothing happened. The pilot's trouble shooting did not remedy the flap problem, and he elected to make a flaps-up landing. The airplane settled onto the runway with the landing gear retracted. The airplane received damage to the underside, aft end of the fuselage, the engine nacelles, and propellers. The airplane is equipped with a landing gear warning horn, and a red cautionary annunciator light in the landing gear handle. The operator reported there was no mechanical malfunction with the airplane.

NTSB Probable Cause Narrative

The pilot's failure to follow the aircraft checklist, and an inadvertent wheels up landing. A factor was the pilot's distraction due to a malfunction of the flap system

Event Information

Type of Event Accident
Event Date 9/11/1998
Event Day of the Week Friday
Time of Event 2315
Event Time Zone --
Event City ST. MARY'S
Event State ALASKA
Event Country --
Zipcode of the event site 99658
Event Date Year 1998
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ST. MARY'S
Event Location Nearest Airport ID PASM
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 311
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 2255 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID PAS
Elevation of weather observation facility 311
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation ADT
Lighting Conditions Night/Dark
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
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) 8
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 83
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1027
NTSB Notification Source --
NTSB Notification Date Sep 12 1998 12:00AM
NTSB Notification Time 116
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:45AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1563C
NTSB Number ANC98LA148
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 Beech
Aircraft Model 1900C
Aircraft Series Identifier 1900C
Aircraft Serial Number UC-20
Certified Max Gross Weight 17710
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 3
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Sep 1 1998 12:00AM
Airframe hours since last inspection 135
Airframe Hours 22935
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ALASKA CENTRAL EXPRESS INC.
Aircraft Owner Street Address 3551 POSTMARK DR.
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99519
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 YADA
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 No
Departure Point Same as Event No
Departure Airport Code ANC
Departure City ANCHORAGE
Departure State AK
Departure Country
Departure Time 2133
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code PASM
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 16
Runway Length 6003
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --