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Accident
Last updated: 11 December 2017
Status:Schlussbericht
Datum:Samstag 10 August 1968
Zeit:08:57
Flugzeugtyp:Silhouette image of generic F27 model; specific model in this crash may look slightly different
Fairchild FH-227B
Fluggesellschaft:Piedmont Airlines
Kennzeichen: N712U
Werknummer: 557
Baujahr: 1967
Betriebsstunden:2197
Triebwerk: 2 Rolls-Royce Dart 532-7
Besatzung:Todesopfer: 3 / Insassen: 3
Fluggäste:Todesopfer: 32 / Insassen: 34
Gesamt:Todesopfer: 35 / Insassen: 37
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:Charleston, WV (   USA)
Flugphase: Annäherung (APR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Cincinnati/Northern Kentucky Airport, KY (CVG/KCVG), USA
Flug nach:Charleston-Kanawha County Airport, WV (CRW/KCRW), USA
Flugnummer: 230
Unfallbericht:
Piedmont flight 230 was on an ILS localizer only approach to Charleston-Kanawha County Airport (CRW) runway 23 when it struck trees 360 feet from the runway threshold. The aircraft continued and struck up sloping terrain (+30deg) 250 feet short in a 4-5deg nose down attitude, slightly left wing down. The Fairchild continued up the hill and on to the airport, coming to rest 6 feet beyond the threshold and 50 feet from the right edge of the runway.
A layer of dense fog (about 150 feet thick) was obscuring the threshold and about half of the approach lights. Visual conditions existed outside the fog area.

Probable Cause:

PROBABLE CAUSE: "An unrecognized loss of altitude orientation during the final portion of an approach into shallow, dense fog. The disorientation was caused by a rapid reduction in the ground guidance segment available to the pilot at a point beyond which a go-around could not be successfully effected."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year
Accident number: NTSB/AAR-69-06
Download report: Final report

Informationsquelle:
» ICAO Circular 107-AN/81 (p.283-302)


Sicherheitsempfehlungen
Six safety recommendations were issued as a result of this accident. The recommendations a.o. focused on the dangers of shallow fog penetration.

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Cincinnati/Northern Kentucky Airport, KY to Charleston-Kanawha County Airport, WV as the crow flies is 275 km (172 miles).
Accident location: Exact; deduced from official accident report.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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