Aircraft Accident/Incident Report

Chico, Texas 76431
Saturday, May 7, 2011 20:08 CDT

NTSB Narrative Summary Released at Completion of Accident

While en route to the destination airport, the pilot noted fluctuation in the engine speed. He diverted to a nearby airport and detected smoke, which increased in intensity. While performing an emergency landing to a highway, the airplane's nose landing gear would not extend. The pilot landed the airplane, which slid to a halt. A postaccident examination revealed thermal distortion to the airplane's nose gear door, which impeded normal operation of the nose landing gear. Clamps on the turbocharger's intermediate exhaust crossover tube were found to be unsecured, which would allow exhaust gases to damage the engine's accessories. The examination also found signatures of thermal distress to the fuel flow transducer and fuel flow transducer line. The unsecured clamps and heat signatures were consistent with exhaust gases compromising the fuel flow transducer line, which resulted in a source of ignition and fuel for the in-flight fire. No additional preimpact mechanical malfunctions or failures were found that would have precluded normal operation. A review of maintenance logbooks noted that a propeller strike had occurred about 3 months before the accident and that repairs were completed about 1 month later, when the engine, including the turbocharger, was removed, cleaned, and inspected. The airplane had flown about 4 hours since the repair.

NTSB Probable Cause Narrative

The mechanic's improper installation of the turbocharger's exhaust balance system, which resulted in an in-flight fire.

Event Information

Type of Event Accident
Event Date 5/7/2011
Event Day of the Week Saturday
Time of Event 2008
Event Time Zone Central Daylight Time
Event City Chico
Event State TEXAS
Event Country --
Zipcode of the event site 76431
Event Date Year 2011
Event Date Month 5
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 --
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 2015 Central Daylight Time
Direction of event from weather observation facility (degrees) 175
Weather Observation Facility ID XBP
Elevation of weather observation facility 852
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation CDT
Lighting Conditions Dusk
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) 28
Dew Point at event time (in degress fahrenheit) 15
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.7
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KXBP 080115Z AUTO 16007KT 10SM CLR 28/15 A29
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29619
NTSB Notification Source FTW FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 8 2012 4:52PM
User who most recently changed record aguj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N80JB
NTSB Number CEN11LA327
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire Ground and In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA 46-350P
Aircraft Series Identifier --
Aircraft Serial Number 4622156
Certified Max Gross Weight 4300
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 10 2011 12:00AM
Airframe hours since last inspection 5
Airframe Hours 2418
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name CHRISTIAN AIR BROTHERHOOD LLC
Aircraft Owner Street Address 315 CENTRAL FWY E
Aircraft Owner City WICHITA FALLS
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 76301
Operator is an individual? No
Operator Name CHRISTIAN AIR BROTHERHOOD LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 315 CENTRAL FWY E
Operator City WICHITA FALLS
Operator State TX
Operator Country USA
Operator Zip code 76301
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code AFW
Departure City Fort Worth
Departure State TX
Departure Country USA
Departure Time 1950
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code CWC
Destination City Wichita Falls
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 26 2012 2:50PM
User who most recently changed record aguj
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --