2013-07-06 Asiana Boeing 777-200 impact with seawall at San Francisco


2013-07-06 Asiana Boeing 777-200 impact with seawall at San Francisco


Probable Cause

The National Transportation Safety Board determines that the probable cause of this
accident was the flight crew’s mismanagement of the airplane’s descent during the visual
approach, the pilot flying’s unintended deactivation of automatic airspeed control, the flight
crew’s inadequate monitoring of airspeed, and the flight crew’s delayed execution of a go-around
after they became aware that the airplane was below acceptable glidepath and airspeed
tolerances. Contributing to the accident were

(1) the complexities of the autothrottle and autopilot flight director systems that were inadequately described in Boeing’s documentation and Asiana’s pilot training, which increased the likelihood of mode error;

(2) the flight crew’s nonstandard communication and coordination regarding the use of the autothrottle and autopilot flight director systems;

(3) the pilot flying’s inadequate training on the planning and executing of visual approaches;

(4) the pilot monitoring/instructor pilot’s inadequate supervision of the pilot flying; and

(5) flight crew fatigue, which likely degraded their performance.


Date: 2013-07-06 Time: 11:28
Location: KSFO SFO San Francisco Intl
Country: USA
Flight phase: APR – Initial Approach (IFR), Final Approach, all Circuit Patterns, Missed Approach/Go-Around
Damage to a/c: hull loss

Flight no.: OZ 214
From: RKSI/ICN: Seoul Incheon Intl Airport  To: KSFO/SFO: San Francisco Intl
Type: Passenger
Operator: Asiana Airlines

Type: Boeing 777-200
Registration: HL7742
Age a/c: 7,3 years
Constr. No.: 29171






Crew Pax Other Total
Occupants 16 291
Fatalities 0 3 0 0
Injuries 9 40 0 0
Asiana AL Safety Report

Download Report:


Image & Information Sources

Animation Asiana 214 Final Approach

© NTSB | Youtube


AP = Airport / AL = Airlines / Avn = Aviation / AW = Airways / C/N: Construction Number / DSP = Domestic Scheduled Passenger / DNP = Domestic Non-Scheduled Passenger / DSC = Domestic Scheduled Cargo / DNC= Domestic Non-Scheduled Cargo / GND = On the ground / parked, stored / FMN= Flying Mission, Air Work / FRY = Ferry-, Positioning Flight / IMC = Intrument Meteorological (flying) Conditions / ISP = International Scheduled Passenger / ISC=International Scheduled Cargo / INP = International Non-Scheduled Passenger / INC =International Non-Scheduled Cargo/ OPS = Flight Operation(s) / NRV = Non-revenue, Private Flight / TRN =Training Flight /  TST = Test & Certification Flight / VMC = Visual Meteorological (flying) Conditions