Status: | Accident investigation report completed and information captured |
Datum: | vrijdag 13 augustus 2004 |
Tijd: | 00:49 |
Type: | Convair CV-580 |
Luchtvaartmaatschappij: | Air Tahoma |
Registratie: | N586P |
Constructienummer: | 68 |
Bouwjaar: | 1953 |
Aantal vlieguren: | 67886 |
Motoren: | 2 Allison 501-D13D |
Bemanning: | slachtoffers: 1 / inzittenden: 2 |
Passagiers: | slachtoffers: 0 / inzittenden: 0 |
Totaal: | slachtoffers: 1 / inzittenden: 2 |
Schade: | Afgeschreven |
Gevolgen: | Written off (damaged beyond repair) |
Plaats: | 1 km (0.6 mijl) S of Cincinnati/Northern Kentucky Airport, KY (CVG) ( Verenigde Staten)
|
Fase: | Nadering (APR) |
Soort vlucht: | Vracht |
Vliegveld van vertrek: | Memphis International Airport, TN (MEM/KMEM), Verenigde Staten |
Vliegveld van aankomst: | Cincinnati/Northern Kentucky Airport, KY (CVG/KCVG), Verenigde Staten |
Vluchtnummer: | 185 |
Beschrijving:The Convair, owned by Air Tahoma, was carrying overnight delivery packages under contract to DHL Worldwide Express. The captain began fuel crossfeed operations about 50 minutes into the flight and allowed it to continue unmonitored for almost 30 minutes. During the crossfeed operations, the fuel tank shutoff valve had been left open. This is contrary to approved procedures and allowed fuel transfer from the left tank to the right tank. During the airplane's descent to
landing, the fuel in the left tank, which was providing fuel to both engines, was exhausted because both engine-driven fuel pumps drew air from the left tank into the fuel system instead of fuel from the right tank, which led to a dual engine flameout caused by fuel starvation. The airplane was approaching runway 36R at Cincinnati/Northern Kentucky Airport but did not make it to the runway. The aircraft crashed on the sixth hole at the World of Sports golf course, just south of the airport and broke up.
Probable Cause:
PROBABLE CAUSE: " The National Transportation Safety Board determines that the probable cause of this accident was fuel starvation resulting from the captains decision not to follow approved fuel crossfeed procedures. Contributing to the accident were the captain's inadequate preflight planning, his subsequent distraction during the flight, and his late initiation of the in-range checklist. Further contributing to the accident was the flight crews failure to monitor the fuel gauges and to recognize that the airplanes changing handling characteristics were caused by a fuel imbalance."
Accident investigation:
|
Investigating agency: | NTSB |
Status: | Investigation completed |
Duration: | 1 year and 9 months | Accident number: | NTSB AAR-06-03 | Download report: | Final report
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Bronnen:
» NTSB
Veiligheidsmaatregelen
NTSB issued 3 Safety Recommendations
Issued: 17-MAY-2006 | To: FAA | A-06-39 |
Issue a flight standards illformation bulletin to all principal operations inspectors of Convair 580 operators that familiarizes operators with the circumstances of the Air Tahoma flight 185 accident, including the iinportancc of closing the fuel tank shutoff valve for the tank not being used during fuel crossfeed operations. (Closed - Acceptable Action) |
Issued: 17-MAY-2006 | To: FAA | A-06-40 |
Require Convair 580 operators to set the left and right fuel boost pump output pressure settings on their airplanes to the same setting. (Closed - Acceptable Alternate Action) |
Issued: 17-MAY-2006 | To: Transport Canada | A-06-41 |
Require Convair 580 operators to set the left and right fuel boost pump output pressure settings on their airplanes to the same setting. (Closed - Acceptable Alternate Action) |
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Foto's
accident date:
13-08-2004type: Convair CV-580
registration: N586P
accident date:
13-08-2004type: Convair CV-580
registration: EC-HMR
Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft
niet de exacte vliegroute weer.
De afstand tussen Memphis International Airport, TN en Cincinnati/Northern Kentucky Airport, KY bedraagt 644 km (402 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.