Greater Buffalo Intl Airport
Aircraft Accident/Incident Report

Buffalo, New York 14225
Thursday, April 3, 1997 19:55 EST

NTSB Narrative Summary Released at Completion of Accident

While being vectored for the final approach in visual conditions, at night, the flight crew lost radio contact with the control tower and smelled smoke aboard the airplane. They continued the approach and landed, and after reaching their parking space, were notified by ground personnel of flames penetrating the top of the aft fuselage between the engines. The fire was extinguished by airport fire fighting personnel. Postaccident investigation found a hydraulic return line in the aft equipment bay had evidence of electrical arcing and a small hole through which fluid could escape. An 115-volt electrical line used to heat the horizontal stabilizer also had evidence of rubbing on its surface. In addition to the hydraulic fluid, a pressurized fuel line to the APU was damaged by the fire and leaking fuel. A test simulating an electrical line arcing with a leaking hydraulic line resulted in a fire during each of the three tests. The production standards that Cessna used did not specify a minimum space between electrical lines and flammable fluid lines. The FAA had certified the airplane without requiring Cessna to specify a minimum spacing between electrical lines and flammable fluid lines.

NTSB Probable Cause Narrative

A combination hydraulic fluid and fuel-fed fire which originated from electrical arcing, due to the lack of an adequate production standard from Cessna for the separation of flammable fluid lines and electrical lines. A factor was the lack of oversight from the FAA, which allowed Cessna to space the flammable fluid lines and electrical lines at too close a position.

Event Information

Type of Event Accident
Event Date 4/3/1997
Event Day of the Week Thursday
Time of Event 1955
Event Time Zone Eastern Standard Time
Event City BUFFALO
Event State NEW YORK
Event Country --
Zipcode of the event site 14225
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 GREATER BUFFALO INTL
Event Location Nearest Airport ID BUF
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 724
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1954 Eastern Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID BUF
Elevation of weather observation facility 724
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height 4700
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 993
NTSB Notification Source --
NTSB Notification Date Apr 4 1997 12:00AM
NTSB Notification Time 716
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:14PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N553AC
NTSB Number NYC97LA068
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 650
Aircraft Series Identifier 650
Aircraft Serial Number 198
Certified Max Gross Weight 22200
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 10
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Feb 13 1997 12:00AM
Airframe hours since last inspection 59
Airframe Hours 2128
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MERCURY COMMUNICATIONS INC.
Aircraft Owner Street Address 5 WEST 3RD STREET
Aircraft Owner City COUDERSPORT
Aircraft Owner State PA
Aircraft Owner Country
Aircraft Owner Zipcode 16915
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
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Executive/Corporate
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code ELZ
Departure City WELLSVILLE
Departure State NY
Departure Country
Departure Time 1930
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code BUF
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
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 23
Runway Length 8102
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --