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Last updated: 16 January 2022
Status:Definitief
Datum:vrijdag 14 augustus 1998
Tijd:15:40
Type:Silhouette image of generic B734 model; specific model in this crash may look slightly different
Boeing 737-490
Luchtvaartmaatschappij:Alaska Airlines
Registratie: N799AS
Constructienummer: 29270/3038
Bouwjaar: 1998
Aantal vlieguren:723
Motoren: 2 CFMI CFM56-3C1
Bemanning:slachtoffers: 0 / inzittenden: 5
Passagiers:slachtoffers: 0 / inzittenden: 140
Totaal:slachtoffers: 0 / inzittenden: 145
Schade: Groot
Gevolgen: Repaired
Plaats:Juneau International Airport, AK (JNU) (   Verenigde Staten)
Fase: Landing (LDG)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Seattle/Tacoma International Airport, WA (SEA/KSEA), Verenigde Staten
Vliegveld van aankomst:Juneau International Airport, AK (JNU/PAJN), Verenigde Staten
Vluchtnummer:AS75
Beschrijving:
The Boeing 737-400 airplane, N799AS, sustained substantial damage during landing at the Juneau International Airport, Alaska. There were no injuries. Visual meteorological conditions prevailed, and an instrument flight plan had been cancelled prior to initiating the visual approach. The flight originated at the Seattle-Tacoma International Airport, Washington, about 13:50 local time.
The accident flight was the first officer's second Initial Operating Experience (IOE) training flight after being hired by Alaska Airlines. The first officer was making a visual approach to runway 26, and on initial touchdown the airplane "skipped" and became airborne. The captain said that during the initial touchdown he noted that the throttles were not in the fully retarded position. At this point, the captain closed the throttles and instructed the first officer to maintain attitude as the second touchdown approached. He said that the auto spoilers then deployed, and the airplane settled onto the runway in a nose high attitude. The captain characterized the second touchdown as "firm", but well within acceptable limits.
A subsequent inspection by ground personnel discovered a 4 feet by 1 foot scrape located on the belly of the airplane, between stations 887 and 941.
The airplane was later flown to Seattle, unpressurized, for further inspection, and repair. Maintenance personnel were required to replace a 2 feet by 7 feet section of aircraft skin, prior to returning the airplane to service.
The FDR readout showed that the first flare attained a pitch angle of 7 degrees. After the "skip," the pitch angle was lowered to 5 degrees, and then raised to about 8 degrees. The nose continued to rise prior to the second touchdown, and attained a pitch angle of 9.65 degrees.

Probable Cause:

PROBABLE CAUSE: "The flight crew's inadequate recovery from a bounced landing."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 6 months
Accident number: ANC98LA122
Download report: Summary report

Bronnen:
» NTSB


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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 Seattle/Tacoma International Airport, WA en Juneau International Airport, AK bedraagt 1450 km (906 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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