Vliegtuigongeval op 15 DEC 1985 met Boeing 747-136 G-AWNE - Boston-Logan International Airport, MA (BOS)
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Status:Accident investigation report completed and information captured
Datum:zondag 15 december 1985
Type:Silhouette image of generic B741 model; specific model in this crash may look slightly different
Boeing 747-136
Luchtvaartmaatschappij:British Airways
Registratie: G-AWNE
Constructienummer: 19765/109
Bouwjaar: 1971
Aantal vlieguren:55667
Bemanning:slachtoffers: 0 / inzittenden: 17
Passagiers:slachtoffers: 0 / inzittenden: 252
Totaal:slachtoffers: 0 / inzittenden: 269
Schade: Groot
Gevolgen: Repaired
Plaats:Boston-Logan International Airport, MA (BOS) (   Verenigde Staten)
Fase: Nadering (APR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:London-Heathrow Airport (LHR/EGLL), Verenigd Koninkrijk
Vliegveld van aankomst:Boston-Logan International Airport, MA (BOS/KBOS), Verenigde Staten
Approximately 16 ft of the left inboard trailing edge flap separated while the aircraft was on final approach to land at Boston-Logan Airport. The approach and landing were completed without further incident. Investigation revealed 5 of the 8 bolts which hold the no. 3 flap track forward attach fitting to the wing showed signs of fatigue and the 3 remaining bolts showed overload type failures. No inspection requirements for the forward attachment bolts were required by Boeing at the time of the accident.

Probable Cause:

flight control,flap attachment..fatigue

flight control,flap attachment..failure,partial
acft/equip,inadequate airframe..manufacturer
insufficient standards/requirements,manufacturer..manufacturer

Accident investigation:

Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 7 months
Accident number: NTSB/AAR-87/02/SUM
Download report: Summary report



NTSB issued 3 Safety Recommendations

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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 London-Heathrow Airport en Boston-Logan International Airport, MA bedraagt 5201 km (3251 miles).

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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