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Last updated: 19 January 2022
Datum:maandag 8 mei 1989
Type:Silhouette image of generic BE99 model; specific model in this crash may look slightly different
Beechcraft 99 Airliner
Luchtvaartmaatschappij:Holmström Flyg
Registratie: SE-IZO
Constructienummer: U-48
Bouwjaar: 1968
Aantal vlieguren:23095
Motoren: 2 Pratt & Whitney Canada PT6A-28
Bemanning:slachtoffers: 2 / inzittenden: 2
Passagiers:slachtoffers: 14 / inzittenden: 14
Totaal:slachtoffers: 16 / inzittenden: 16
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:nabij Oskarshamn Airport (OSK) (   Zweden)
Fase: Nadering (APR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Stockholm-Arlanda Airport (ARN/ESSA), Zweden
Vliegveld van aankomst:Oskarshamn Airport (OSK/ESMO), Zweden
The Beech 99 was on short finals when it suddenly pitched up. It entered a steep dive to the left and crashed 150 m short of the runway 19 threshold and left of the extended centreline. The centre of gravity was too far aft (45,0 % MAC whereas the aft limit was 38.4%) due to weight disparity between passengers.
The first officer, who was Pilot Flying on the accident flight, had limited experience on the Beech 99 (28 hours).

Probable Cause:

Probable cause:
The accident was probably caused by the fact that the pilot could not compensate for the rapid pitch-up that occurred when the wing flaps were selected out while the engines were running at high power.
Contributing factors have been:
* The aircraft was extremely tail-heavy.
* The crew's training and overall experience on the aircraft type was limited.

Accident investigation:
Investigating agency: SHK Sweden
Status: Investigation completed
Duration: 283 days (9 months)
Accident number: C1990:12
Download report: Final report

» ICAO Adrep Summary 4/89 (#61)


photo of Beechcraft-99-SE-IZO
accident date: 08-05-1989
type: Beechcraft 99
registration: SE-IZO

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 Stockholm-Arlanda Airport en Oskarshamn Airport bedraagt 267 km (167 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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Beech 99

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  • 28e ongeval
  • 15e dodelijk ongeval
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