Accident Boeing 727-81 N124AS,
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ASN Wikibase Occurrence # 329416
 
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Date:Monday 5 April 1976
Time:08:19
Type:Silhouette image of generic B721 model; specific model in this crash may look slightly different    
Boeing 727-81
Owner/operator:Alaska Airlines
Registration: N124AS
MSN: 18821/124
Year of manufacture:1965
Total airframe hrs:25360 hours
Engine model:Pratt & Whitney JT8D-7A
Fatalities:Fatalities: 1 / Occupants: 50
Aircraft damage: Destroyed, written off
Category:Accident
Location:Ketchikan International Airport, AK (KTN) -   United States of America
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:Juneau International Airport, AK (JNU/PAJN)
Destination airport:Ketchikan International Airport, AK (KTN/PAKT)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Flight 60 was making a runway 11 ILS approach under conditions of low ceilings and low visibility. Descending through 4000 feet visual contact with the ground and water was acquired. The captain decided to proceed visually. The aircraft touched down fast (at 145kts) with a 3 knots tailwind component.
Braking action was poor, so the captain decided to execute a go-around. Ground spoilers were retracted, flaps set at 25deg. The thrust reversers didn't disengage fully, so full takeoff thrust couldn't be obtained. Attempts to disengage the reversers failed, so ground spoilers were deployed again. The aircraft overran the wet runway, crossed a gully and a service road, struck the antenna array support structure and continued before ending up in a ravine, 700 feet past the runway.

PROBABLE CAUSE: "The captain's faulty judgement in initiating a go-around after he was committed to a full stop landing following an excessively long and fast touchdown from an unstabilized approach. Contributing to the accident was the pilot's unprofessional decision to abandon the precision approach."

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: DCA76AZ024
Status: Investigation completed
Duration: 8 months
Download report: Final report

Sources:


Location

Images:


photo (c) NTSB; Ketchikan International Airport, AK (KTN/PAKT) (publicdomain)

Revision history:

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