Elim Airport
Aircraft Accident/Incident Report

Elim, Alaska 99739
Monday, May 9, 2005 16:45 AKD

NTSB Narrative Summary Released at Completion of Accident

During the landing roll of the 14 CFR Part 135 scheduled commuter flight, the airline transport certificated pilot noticed a fire in the right engine compartment. He pulled the firewall fuel shutoff for the right engine and stopped the airplane. The passengers were evacuated and the pilot discharged the airplane's fire extinguisher inside the right engine compartment. Additional dry chemical fire extinguishers were supplied by personnel at the airport, and the fire was extinguished. A passenger on the airplane reported that she smelled gasoline and smoke as the airplane was turning onto final, and saw flames as the plane landed. The airplane received structural damage to the right wing. An FAA inspector examined the airplane and reported that the fire pattern was consistent with an in-flight fire on the inboard side of the right engine, that appeared to be concentrated around the hydraulic pump, fuel pump, and the turbocharger. The inspector examined the fuel lines and hydraulic lines to the respective pumps. His examination revealed loose "B" nuts that had no heat discoloration. The airplane's hydraulic fluid reservoir contained fluid. The airplane's right engine hydraulic pump was replaced about 31 hours before the fire. The inspector interviewed the operator's maintenance personnel, and learned that during the hydraulic pump replacement, mechanics removed the right engine's fuel pump to access to the hydraulic pump. Due to the confined area during the reinstallation of the feeder line to the fuel pump, one mechanic held the line in-place, and another turned the fitting with a wrench. A leak check revealed that the fitting was cross-threaded and leaked. The fitting was re-tightened and signed off. The inspector sent the fuel lines and hydraulic lines to the NTSB IIC for examination. Each line was subjected to an air pressure leak test, and no leaks were discovered.

NTSB Probable Cause Narrative

An improper installation of a fuel line fitting by company maintenance personnel, which resulted in a fuel leak and subsequent in-flight engine compartment fire during cruise flight that was discovered during the landing roll.

Event Information

Type of Event Accident
Event Date 5/9/2005
Event Day of the Week Monday
Time of Event 1645
Event Time Zone --
Event City Elim
Event State ALASKA
Event Country --
Zipcode of the event site 99739
Event Date Year 2005
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 643653N
Event Location Longitude 1621618W
Event Location Airport Elim
Event Location Nearest Airport ID ELI
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 200
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
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) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) --
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 7
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 18725
NTSB Notification Source Operator
NTSB Notification Date May 10 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 20 2005 6:27AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-AL FAI FSDO 01

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3535F
NTSB Number ANC05LA075
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-31-350
Aircraft Series Identifier --
Aircraft Serial Number 31-7952200
Certified Max Gross Weight 7000
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 10
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 1 2005 12:00AM
Airframe hours since last inspection 84
Airframe Hours 23590
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Cape Smythe Air Service Inc.
Aircraft Owner Street Address P.O. Box 549
Aircraft Owner City Barrow
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99723
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 CSAA
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 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 PAOM
Departure City Nome
Departure State AK
Departure Country USA
Departure Time 1605
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code ELI
Destination City Elim
Destination State AK
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 27 2005 1:54PM
User who most recently changed record PETL
Since inspection or accident Time of Accident
Event Location Runway Number and Location 01
Runway Length 3000
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --