Eastern Wv Regional/Shepard Airport
Aircraft Accident/Incident Report

Martinsburg, West Virginia 25401
Monday, December 17, 2001 18:50 EST

NTSB Narrative Summary Released at Completion of Accident

While in cruise flight, with the combustion heater turned on, the pilot heard an explosion. Smoke then entered the cabin, followed by a loss of electrical power. The pilot diverted and landed without incident. Examination of the airplane revealed that the combustion heater exhibited heat and fire damage. The fuel pump supply line that ran between the fuel pump and the heater was found cracked at the fuel pump housing inlet, and was loose. The fractured surfaces appeared dull, and displayed carbon build-up. Examination of the airplane's logbooks revealed that on December 1, 1993, the combustion heater had been removed, rebuilt, and then re-installed, at a total airplane time of 3,932.2 hours. Additionally, there were no logged entries which indicated that the 20-year old Airworthiness Directive that was issued to "prevent a hazardous condition caused by deterioration on the combustion heater", for this particular model heater had been complied with. The airplane underwent an annual inspection in September 2001, at a total airplane time of 5,213.5 hours. At the time of the accident, the airplane had accrued a total of 5,231.9 hours.

NTSB Probable Cause Narrative

the owner/mechanic's failure to comply with an Airworthiness Directive, which resulted in a cracked fuel supply line and subsequent in-flight fire.

Event Information

Type of Event Accident
Event Date 12/17/2001
Event Day of the Week Monday
Time of Event 1850
Event Time Zone Eastern Standard Time
Event City MARTINSBURG
Event State WEST VIRGINIA
Event Country --
Zipcode of the event site 25401
Event Date Year 2001
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport EASTERN WV REGIONAL/SHEPARD
Event Location Nearest Airport ID MRB
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 557
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1853 Eastern Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID MRB
Elevation of weather observation facility 557
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EST
Lighting Conditions Night
Lowest Ceiling Height 4300
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.81
Density Altitude (feet) -57
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) 13796
NTSB Notification Source BWI FSDO
NTSB Notification Date Dec 20 2001 12:00AM
NTSB Notification Time 830
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Aug 26 2003 8:17AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office BALTIMORE FAA/FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4062Q
NTSB Number IAD02LA020
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 In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 401A
Aircraft Series Identifier --
Aircraft Serial Number 401A0111
Certified Max Gross Weight 6300
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 30 2001 12:00AM
Airframe hours since last inspection 18.4
Airframe Hours 5213.5
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROY AIR INC
Aircraft Owner Street Address --
Aircraft Owner City KEVIL
Aircraft Owner State KY
Aircraft Owner Country USA
Aircraft Owner Zipcode 42053
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 --
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 40N
Departure City COATESVILLE
Departure State PA
Departure Country USA
Departure Time 1730
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code HTS
Destination City HUNTINGTON
Destination State WV
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jun 3 2002 2:32PM
User who most recently changed record PEAR
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 --