Baltimore-Washington Airport
Aircraft Accident/Incident Report

Baltimore, Maryland 21240
Saturday, October 3, 1987 11:00 EST

NTSB Narrative Summary Released at Completion of Accident

THE ACFT HAD A MAIN GEAR ONLY LANDING AFTER THE NOSE GEAR FAILED TO LOCK DOWN. THIS WAS THE FIRST FLIGHT SINCE A NEWLY OVERHAULED NOSE GEAR WAS INSTALLED. IT WAS DETERMINED THAT WHEN THE NOSE GEAR WAS INSTALLED AND BEFORE IT WAS CORRECTED, A WRONG WASHER WAS USED WITH A BOLT TO INSTALL PART OF THE DOWNLOCK MECHANISM. THIS RESULTED IN AN UNDETECTED PERMANENT REDUCTION, BELOW THE DESIGN CLEARANCE BETWEEN THE DOWNLOCK PLUNGER AND ITS INTERNAL-BEARING. EXAMINATION OF THE DOWNLOCK AFTER THE LANDING INCIDENT DISCLOSED THAT THERE WAS SCORING OF THE PLUNGER AND ITS BEARING.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 10/3/1987
Event Day of the Week Saturday
Time of Event 1100
Event Time Zone Eastern Standard Time
Event City BALTIMORE
Event State MARYLAND
Event Country --
Zipcode of the event site 21240
Event Date Year 1987
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BALTIMORE-WASHINGTON
Event Location Nearest Airport ID BWI
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 146
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1100 Eastern Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID BWI
Elevation of weather observation facility 146
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 7000
Lowest Non-Ceiling Height 3900
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) 12
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Unknown
Wind Speed (knots) 13
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 20
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 56
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5074
NTSB Notification Source --
NTSB Notification Date Oct 3 1987 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information 36434
Date of most recent change to record Dec 13 2000 2:54PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N288N
NTSB Number BFO88IA001
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 FOKKER
Aircraft Model F-28-MK-1000
Aircraft Series Identifier F-28-MK-10
Aircraft Serial Number 11054
Certified Max Gross Weight 63000
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 60
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Oct 2 1987 12:00AM
Airframe hours since last inspection 2
Airframe Hours 28534
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PIEDMONT AVIATION
Aircraft Owner Street Address P. O. BOX 2720
Aircraft Owner City WINSTON-SALEM
Aircraft Owner State NC
Aircraft Owner Country
Aircraft Owner Zipcode 27156
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 PAIA
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 GSO
Departure City GREENSBORO
Departure State NC
Departure Country
Departure Time 902
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code BWI
Destination City BALTIMORE
Destination State MD
Destination Country
Specific Phase of Flight Landing
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 33L
Runway Length 9519
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --