Individually Owned: 151,845
Corporate Owned: 143,699
Kasigluk Airport
Aircraft Accident/Incident Report
Kasigluk, Alaska 99609
Monday, October 20, 1997 10:00 AKD
NTSB Narrative Summary Released at Completion of Accident
The pilot was entering a left downwind for landing at a remote airport. The wind conditions were 25 knots with gusts to 35 knots. During the turn, the pilot utilized full aileron deflection, and noticed the aileron momentarily jammed. He was able to force the control wheel to the right, unjamming the aileron. After landing, the pilot began to taxi to the ramp. Due to a strong crosswind, the pilot deflected the ailerons fully to the left. The aileron once again jammed, and the pilot was unable to force the control wheel to the right. The airplane's ailerons utilize balance weights that are attached to the interior surface of the leading edge of the aileron. Five screws are inserted through the leading edge skin of the aileron, through the balance weight, and into self-locking nuts attached to a nut strip assembly. Company maintenance personnel reported 1 screw was missing. Three of the remaining 4 screws were loose, and backed out sufficient distance to contact the trailing edge of the wing, forward of the aileron. The left aileron was jammed in a full, leading edge down, position. The Cessna 208B pilot information manual details a preflight inspection that includes an examination of the ailerons as part of a walk-around inspection of the airplane. In addition, the balance weights should be inspected during every 100-hour inspection. A review of the manufacturer's service condition report data base, and the Federal Aviation Administration malfunction and defect report system did not reveal any other reported incidents of aileron jamming.
NTSB Probable Cause Narrative
inadequate inspection of the aileron by company maintenance personnel, and the pilot's inadequate preflight inspection of the aileron, which led to the jamming of the left aileron due to loose balance weight retaining screws.
Event Information
| Type of Event | Incident |
| Event Date | 10/20/1997 |
| Event Day of the Week | Monday |
| Time of Event | 1000 |
| Event Time Zone | -- |
| Event City | KASIGLUK |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99609 |
| Event Date Year | 1997 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | KASIGLUK |
| Event Location Nearest Airport ID | Z09 |
| 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 | 40 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| 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) | 20 |
| Air Temperature at event time (in degrees celsius) | -12 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 315 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 25 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 35 |
| Altimeter Setting at event time (in. Hg) | -- |
| 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) | 5034 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Oct 20 1997 12:00AM |
| NTSB Notification Time | 1102 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 8 2000 12:36PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9304F |
| NTSB Number | ANC98IA004 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | Company VFR |
| Flight plan Was Activated? | -- |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 208B |
| Aircraft Series Identifier | 208B |
| Aircraft Serial Number | 20800008 |
| Certified Max Gross Weight | 8750 |
| 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 | 9 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Sep 25 1997 12:00AM |
| Airframe hours since last inspection | 34 |
| Airframe Hours | 8638 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | AVION CAPITAL CORP. |
| Aircraft Owner Street Address | 2404 MERRILL FIELD DR. |
| Aircraft Owner City | ANCHORAGE |
| Aircraft Owner State | AK |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 99501 |
| Operator is an individual? | -- |
| Operator Name | PENINSULA AIRWAYS INC. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 6100 BOEING AVE. |
| Operator City | ANCHORAGE |
| Operator State | AK |
| Operator Country | |
| Operator Zip code | 99516 |
| Operator Code | PNSA |
| 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 | BET |
| Departure City | BETHEL |
| Departure State | AK |
| Departure Country | |
| Departure Time | 930 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | Z09 |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Approach |
| 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 | 1950 |
| Runway Width | 50 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |