Aircraft Accident/Incident Report

Quinhagak, Alaska 99655
Saturday, April 12, 1997 15:40 AKD

NTSB Narrative Summary Released at Completion of Accident

The air taxi pilot/company owner was taking off from his base of operations airport in rural Alaska with a new hire pilot and four passengers. About one mile from the airport, the pilot and passengers saw and smelled smoke. The pilot immediately returned and landed. At the pilot's request, the new hire pilot exited the airplane, checked the engine oil dipstick for security, and then reentered the cockpit. The pilot made another takeoff. Shortly after takeoff, smoke began to fill the cockpit, and flame was visible coming from the engine cowling. An emergency landing was made just off the airport on a small island. The occupants of the airplane extinguished the fire with water and a small fire extinguisher. Postaccident inspection disclosed a loose exhaust manifold and fire damage in the vicinity of the exposed exhaust ports. Nuts which affix the exhaust manifold to the engine were found in the bottom of the cowling. The airplane had maintenance performed about one month previously which necessitated the removal of the left manifold.

NTSB Probable Cause Narrative

A disconnected exhaust manifold collector, improper maintenance of the airplane by company maintenance personnel, and the pilot's poor judgement in electing to initiate another flight after observing smoke in the cockpit.

Event Information

Type of Event Accident
Event Date 4/12/1997
Event Day of the Week Saturday
Time of Event 1540
Event Time Zone --
Event City QUINHAGAK
Event State ALASKA
Event Country --
Zipcode of the event site 99655
Event Date Year 1997
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 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) 60
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
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 6
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1528
NTSB Notification Source --
NTSB Notification Date Apr 12 1997 12:00AM
NTSB Notification Time 1730
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:12PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9000N
NTSB Number ANC97LA055
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 Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-32
Aircraft Series Identifier PA-32
Aircraft Serial Number 32-40883
Certified Max Gross Weight 3400
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 7
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 18 1997 12:00AM
Airframe hours since last inspection 41
Airframe Hours 5291
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name KUSKO AVIATION
Aircraft Owner Street Address P.O. BOX 56
Aircraft Owner City QUINHAGAK
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99655
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 KUSA
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 Passenger/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code AQH
Departure City
Departure State
Departure Country
Departure Time 1540
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code GNU
Destination City GOODNEWS
Destination State AK
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --