Dutch Harbor Airport
Aircraft Accident/Incident Report

Dutch Harbor, Alaska 99692
Friday, January 18, 2008 12:45 AST

NTSB Narrative Summary Released at Completion of Accident

The pilot of the nonscheduled cargo flight reported that during taxi for takeoff the airplane encountered a 68-knot wind gust, and he returned to the gate to examine the rudder. Finding no damage, he continued the flight. After takeoff, the pilot said there was very little left rudder control. An examination of the rudder was made after the airplane landed at its destination. From the pilot's rudder pedals, the rudder is controlled by a cable which makes a 180-degree turn toward the tail via two phenolic pulleys. Each pulley has two guard pins, which keep the cable from jumping off the pulleys if the cable becomes slack. The inspection showed that the cable had jumped off the upper pulley. The pulley's upper guard pin had retracted, and did not prevent the cable from jumping off the pulley. The guard pin has a perforated and deformed end, giving it a spring action which secures the pin after passing through the holes on either side of the pulley bracket. No service difficulty reports were found for the pins, and the pins do not have any service life limits. An examination of the operator's other, similar model airplanes, showed that several of their guard pins had also retracted. Evidence suggests that the pin's locking action becomes weakened and ineffective by repeated use. The operator submitted a service difficulty report, and as a result of this incident, the manufacturer has published service letters 226-SL-037, 227-SL052, and CC7-SL-045. The service letters indicate that the pins should be inspected, and that all pins should be replaced with improved pins, and secured with cotter pins.

NTSB Probable Cause Narrative

The disengagement of the rudder control cable and loose rudder cable retaining pins. A factor contributing to the accident was a wind gust.

Event Information

Type of Event Incident
Event Date 1/18/2008
Event Day of the Week Friday
Time of Event 1245
Event Time Zone Atlantic Standard Time
Event City Dutch Harbor
Event State ALASKA
Event Country --
Zipcode of the event site 99692
Event Date Year 2008
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 535425N
Event Location Longitude 1663257W
Event Location Airport Dutch Harbor
Event Location Nearest Airport ID L2G
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 --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1236 Atlantic Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID PAUD
Elevation of weather observation facility 22
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation AST
Lighting Conditions Day
Lowest Ceiling Height 3300
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 9
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 37
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 47
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 23685
NTSB Notification Source FAA Anchorage, ROC
NTSB Notification Date Jan 18 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 28 2008 12:03PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Anchorage FSDO-03

Aircraft Involved

Aircraft #1

Aircraft Registration Number N41NE
NTSB Number ANC08IA033
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Fairchild
Aircraft Model SA227-AC
Aircraft Series Identifier --
Aircraft Serial Number 741B
Certified Max Gross Weight 16000
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 19
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Jan 1 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 36207
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PENINSULA AIRWAYS INC
Aircraft Owner Street Address --
Aircraft Owner City Anchorage
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99502
Operator is an individual? No
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 PNSA
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 Cargo
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code L-2G
Departure City Dutch Harbor
Departure State AK
Departure Country USA
Departure Time 1300
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code PANC
Destination City Anchorage
Destination State AK
Destination Country USA
Specific Phase of Flight Taxi - to takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 23 2008 3:43PM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location 12
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --