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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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October 3, 1987 · Fokker F-28-MK-1000 F-28-MK-10 · N288N

Baltimore, MD

Overview

Report Status
Preliminary report
Event Type
Incident
Date
October 3, 1987
Injury Outcomes
No injuries (56 uninjured)
Location
Baltimore, MD
Aircraft
Fokker F-28-MK-1000 F-28-MK-10
Tail Number
N288N
Injuries
None
Aircraft Damage
Minor
NTSB Number
BFO88IA001

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.

Full Narrative

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.

Flight

Event TypeIncident
Event Time12:00 EDT
Nearest AirportBaltimore-Washington (0nm N)
Runway33L
Runway Length9519 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftFokker F-28-MK-1000 F-28-MK-10
Tail NumberN288N
Aircraft CategoryAir
DamageMinor
Operating RulePart 121
Engines2
Engine TypeTurbojet
Engine DetailsRolls-Royce · 555-15 · Turbojet · 9850
Seats60

People & Injuries

Injury SummaryNo injuries (56 uninjured)
Fatal0
Serious0
Minor0
Uninjured56
Total56
Crew 1Age 31 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind340° @ 13 kt, gusting 20 kt
Visibility12 sm
CeilingOvercast 7000 ft
Temperature / Dew Point55 / 45 C
Altimeter29.00 inHg
Observation Time16:00
Weather SourceWFAC

Appendix: Source Data