Isbell Field Airport
Aircraft Accident/Incident Report

Fort Payne, Alabama 35967
Thursday, June 30, 2005 8:16 CDT

NTSB Narrative Summary Released at Completion of Accident

Shortly after liftoff, about 20 feet above the ground, the pilot noticed a drop in the right engine manifold pressure. As the airplane began a right roll, efforts by the pilot to arrest the roll failed. When the pilot decided to put the airplane back on the ground, the right wing collided with the ground, the airplane cart wheeled and came to rest on its belly and burst into flames. Examination of the wreckage site revealed the aircraft located approximately 200 feet on the northwest side of the runway 22 centerline. The left fuel tank was ruptured and the left side of the airplane was fire damaged. Further examination revealed that the right engine's aft clamp connecting the turbocharger compressor outlet to the intercooler piping was broken, and the coupling was not secured to the turbocharger assembly. The examination also revealed that the aft clamp used to secure the coupling to the turbocharger assembly was not a T-bolt style clamp but, a standard automotive adjustable clamp. According to the engine manufacturer, the intercooler assembly and associated systems were produced by American Aviation, Inc., as a Supplemental Type Certificate (STC) SE3800NM product. When the STC installation was accomplished on the accident airplane was not determined.

NTSB Probable Cause Narrative

The loss of engine power due to the failure of the aft clamp connecting the turbocharger compressor outlet to the intercooler ducting which resulted in reduced aircraft performance during takeoff.

Event Information

Type of Event Accident
Event Date 6/30/2005
Event Day of the Week Thursday
Time of Event 816
Event Time Zone Central Daylight Time
Event City Fort Payne
Event State ALABAMA
Event Country --
Zipcode of the event site 35967
Event Date Year 2005
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 342825N
Event Location Longitude 0854317W
Event Location Airport Isbell Field
Event Location Nearest Airport ID 4A9
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 877
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1320 Coordinated Universal Time? Same as GMT
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID K4A9
Elevation of weather observation facility 877
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation UTC
Lighting Conditions Day
Lowest Ceiling Height 500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 3
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.03
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 19113
NTSB Notification Source BHM FSDO
NTSB Notification Date Jun 30 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 28 2006 12:35PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Instrument Meteorological Cond
FAA District Office FSDO 09 Birmingham

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4200N
NTSB Number ATL05LA118
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-31P
Aircraft Series Identifier --
Aircraft Serial Number 31P-7530006
Certified Max Gross Weight 7800
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 7
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 1 2005 12:00AM
Airframe hours since last inspection --
Airframe Hours 4022.5
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Billy J Traylor
Aircraft Owner Street Address P.O. Box 1047
Aircraft Owner City Rainsville
Aircraft Owner State AL
Aircraft Owner Country USA
Aircraft Owner Zipcode 35986
Operator is an individual? No
Operator Name Max Pak
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 260 Dilbeck Rd
Operator City Rainsville
Operator State AL
Operator Country USA
Operator Zip code 35986
Operator Code --
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Executive/Corporate
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 4A9
Departure City Fort Payne
Departure State AL
Departure Country USA
Departure Time 815
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code GPT
Destination City Gulfport
Destination State MS
Destination Country USA
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 22 2005 3:25PM
User who most recently changed record POWP
Since inspection or accident Last Inspection
Event Location Runway Number and Location 22
Runway Length 5001
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --