Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

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.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

September 15, 1986 · Cessna 177B · N34251

Westminster, MD

Overview

Report Status
Preliminary report
Event Type
Accident
Date
September 15, 1986
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Westminster, MD
Aircraft
Cessna 177B
Tail Number
N34251
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
BFO86LA048

FIVE INCHES OF ONE PROPELLER BLADE TIP SEPARATED DURING CRUISE FLIGHT AT AN ALTITUDE OF 3,500 FT MSL. THE IMBALANCE RESULTED IN A SEVERE VIBRATION AND A PARTIAL POWER LOSS. UNABLE TO MAINTAIN ALTITUDE, THE PLT SET UP FOR A FORCED LANDING AT CLEARVIEW AIRPORT. THE AIRCRAFT TOUCHED DOWN MIDWAY DOWN THE RUNWAY, CONTINUED OFF THE END, CONTACTED A DITCH AND NOSED OVER.

Full Narrative

FIVE INCHES OF ONE PROPELLER BLADE TIP SEPARATED DURING CRUISE FLIGHT AT AN ALTITUDE OF 3,500 FT MSL. THE IMBALANCE RESULTED IN A SEVERE VIBRATION AND A PARTIAL POWER LOSS. UNABLE TO MAINTAIN ALTITUDE, THE PLT SET UP FOR A FORCED LANDING AT CLEARVIEW AIRPORT. THE AIRCRAFT TOUCHED DOWN MIDWAY DOWN THE RUNWAY, CONTINUED OFF THE END, CONTACTED A DITCH AND NOSED OVER.

Flight

Event TypeAccident
Event Time15:45 EDT
Nearest AirportClearview (0nm N)
Runway13
Runway Length1830 ft
Runway Width30 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 177B
Tail NumberN34251
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1F6 · Reciprocating · 180
Seats4

People & Injuries

Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 63 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind160° @ 9 kt
Visibility9 sm
CeilingBroken clouds 14000 ft
Temperature / Dew Point61 F
Altimeter30.00 inHg
Observation Time17:00
Weather SourceWFAC

Appendix: Source Data