Benedum Airport
Aircraft Accident/Incident Report

Clarksburg, West Virginia 26301
Thursday, June 19, 1997 17:35 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot lowered the flaps to 35 degrees while on final approach to runway 21. He noted aileron binding as the flaps traveled to 35 degrees, and at the same time heard a snap under the floor of the cockpit. After landing the flaps were not retracted. The airplane was taxied to the terminal where it was observed that the right outboard flap panel had became detached from the flap aft roller bearings at the inboard flap track. The flap was in contact with the aileron, which interfered with aileron control. The manufacturer had published a Safety Communique during May 1997. The Communique dealt with the inspection of the outboard flap attachment brackets and aft roller bearings of Beech 1900 series airplanes. The incident airplane was scheduled to have the inspection complied with during the next 30 days. The airplane had accumulated about 3,317 flight hours and 7,069 landings. An inspection of the remainder of the operator's fleet of Beech 1900D airplanes revealed that eight additional airplanes failed the inspection criteria, but had not reached the assigned number of cycles specified in the Communique.

NTSB Probable Cause Narrative

The right outboard flap detaching from the flap aft roller bearings, at the flap track, which was a result of the manufacturer's inadequate inspection program.

Event Information

Type of Event Incident
Event Date 6/19/1997
Event Day of the Week Thursday
Time of Event 1735
Event Time Zone Eastern Daylight Time
Event City CLARKSBURG
Event State WEST VIRGINIA
Event Country --
Zipcode of the event site 26301
Event Date Year 1997
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BENEDUM
Event Location Nearest Airport ID CKB
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 30
Airport Elevation 1203
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1745 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 40
Weather Observation Facility ID MGW
Elevation of weather observation facility 1248
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5021
NTSB Notification Source --
NTSB Notification Date Jun 19 1997 12:00AM
NTSB Notification Time 1900
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:21PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N165YV
NTSB Number NYC97IA123
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Beech
Aircraft Model 1900D
Aircraft Series Identifier 1900D
Aircraft Serial Number UE165
Certified Max Gross Weight 17000
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 21
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Jun 17 1997 12:00AM
Airframe hours since last inspection 10
Airframe Hours 3328
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MESA AIRLINES, INC.
Aircraft Owner Street Address 2325 EAST 30TH STREET
Aircraft Owner City FARMINGTON
Aircraft Owner State NM
Aircraft Owner Country
Aircraft Owner Zipcode 87401
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 MASA
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 Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code PKB
Departure City PARKERSBURG
Departure State WV
Departure Country
Departure Time 1710
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code CKB
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 21
Runway Length 5200
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --