NTSB: Pilot in San Francisco plane crash worried about visual landing
WASHINGTON — The pilot whose Boeing 777 crashed last summer at the San Francisco airport told investigators he was "very concerned" about attempting a visual approach without the runway's instrument landing aids, which were out of service because of construction, according to an investigative report released Wednesday.
Lee Kang Kuk, a 46-year-old pilot who was landing the big jet for his first time at San Francisco, "stated it was very difficult to perform a visual approach with a heavy airplane." The jet came in too low and slow and crash-landed, killing three people and injuring more than 200, according to the National Transportation Safety Board.
A visual approach involves lining the jet up for landing by looking through the windshield and using numerous other cues, rather than relying on a radio-based system that guides aircraft to the runway.
The investigative report was released at the start of a daylong NTSB hearing that was called to answer lingering questions about the crash, not to conclude exactly what went wrong.
Though Lee was an experienced pilot with the Korea-based airline, he was a trainee captain in the 777, with less than 45 hours in the jet. He had not piloted an airliner into San Francisco since 2004, according to NTSB investigator Bill English.
So far, the investigation has not found any mechanical problems with the 777 prior to impact, although testing is ongoing, English said.
Lee told investigators that he realized others had been safely landing at San Francisco without the glide-slope indicator, an array of antennas that transmits a signal into the cockpit to help with the descent. That system was out of service while the runway was expanded. It has since been restored.
In his interview, the trainee said that while privately he was "very concerned" about his ability to do a visual approach, "everyone else had been doing (it), so he could not say he could not do the visual approach."
There were other indications that a culture of not acknowledging weakness — and of deferring to a higher-ranking colleague — contributed to the crash.
Lee told NTSB investigators that he did not immediately move to abort the landing and perform a "go around" as the plane descended because he felt that only the instructor pilot had the authority to initiate that emergency move.
A reluctance of junior officers to speak up had been an issue in past accidents, though industry training has tried to emphasize that safety should come first.
Lee also conceded that he was worried about his unfamiliarity with the 777's autoflight systems. He admitted he had not studied the systems well enough and thought that the plane's autothrottle was supposed to prevent the jet from flying below minimum speed as it drew near the runway.
But two other Asiana pilots who took an instruction class with Lee said that they were told that the throttle hold did not automatically re-engage under certain autopilot modes.
"This pilot should never have taken off," said attorney Ilyas Akbari, whose firm represents 14 of the passengers. "The fact that the pilot was stressed and nervous is a testament to the inadequate training he received, and those responsible for his training and for certifying his competency bear some of the culpability for the tragedy of this crash."
Lee told investigators that as he realized his approach was off, he was worried he might "fail his flight and would be embarrassed."
Another Asiana pilot who recently flew with Lee told investigators that he was not sure if the trainee captain was making normal progress and that he did not perform well during a trip two days before the accident. That captain described Lee as "not well organized or prepared," according to the investigative report.
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