NTSB: Mechanic checklists a lesson in copter crash - WSFA.com Montgomery Alabama news.

NTSB: Mechanic checklists a lesson in copter crash

Crash scene on Dec. 7, 2011 Crash scene on Dec. 7, 2011
LAS VEGAS (CBS5/AP) -

Federal crash investigators say mechanics and inspectors should use work checklists to avoid maintenance errors like one they say caused a fatal sightseeing helicopter crash outside Las Vegas in December 2011.

The National Transportation Safety Board ruled Tuesday in Washington, D.C., the Sundance Helicopters crash was caused by a crucial locking nut working loose in the rotor mechanism.

That caused a loss of control before the crash near Lake Mead killed the pilot and four tourists.

Officials think a fatigued mechanic improperly installed the nut during maintenance before the crash.

They note the mechanic had been called in early to do the work.

But the helicopter also passed inspections prior to the crash.

"This investigation is a potent reminder that what happens in the maintenance hangar is just as important for safety as what happens in the air," said NTSB Chairman Deborah Hersman.

The Eurocopter AS350, operating as a "Twilight City Tour" sightseeing trip, crashed in mountainous terrain about 14 miles east of Las Vegas. The helicopter originated from Las Vegas McCarran International Airport at about 4:21 p.m. with a planned route to the Hoover Dam area and then return to the airport.

After the trouble began, the helicopter climbed roughly 600 feet, turned about 90 degrees to the left, descended about 800 feet, began a left turn, and then descended at a rate of at least 2,500 feet per minute to impact, the NTSB report stated. 

Killed were two honeymooners from India, a couple from Utica, Kan., and the 31-year-old pilot.

Copyright 2013 Associated Press. All rights reserved.  CBS 5 (KPHO Broadcasting Corporation) contributed to this report.

  • NewsMore>>

  • Political end to Olympics: NKorea offers talks with US

    Political end to Olympics: NKorea offers talks with US

    Sunday, February 25 2018 2:16 AM EST2018-02-25 07:16:08 GMT
    Sunday, February 25 2018 10:47 PM EST2018-02-26 03:47:51 GMT
    (AP Photo/Patrick Semansky). A volunteer walks in a foggy Pyeongchang Olympic Plaza during the 2018 Winter Olympics in Pyeongchang, South Korea, Saturday, Feb. 24, 2018.(AP Photo/Patrick Semansky). A volunteer walks in a foggy Pyeongchang Olympic Plaza during the 2018 Winter Olympics in Pyeongchang, South Korea, Saturday, Feb. 24, 2018.

    Pyeongchang closes its chapter of the modern Olympics on Sunday night with tales of detente and competitive grit and volunteerism and verve.

    More >>

    Pyeongchang closes its chapter of the modern Olympics on Sunday night with tales of detente and competitive grit and volunteerism and verve.

    More >>
  • 5 dead after tornado, flooding from central US storms

    5 dead after tornado, flooding from central US storms

    Sunday, February 25 2018 2:25 AM EST2018-02-25 07:25:46 GMT
    Sunday, February 25 2018 10:38 PM EST2018-02-26 03:38:45 GMT
    (Liz Dufour/The Cincinnati Enquirer via AP). A view from the Central Bridge shows the flooding from the Ohio River  Saturday, Feb. 24, 2018 in Cincinnati.  Forecasters expected the Ohio River could reach levels not seen since the region's deadly 1997 f...(Liz Dufour/The Cincinnati Enquirer via AP). A view from the Central Bridge shows the flooding from the Ohio River Saturday, Feb. 24, 2018 in Cincinnati. Forecasters expected the Ohio River could reach levels not seen since the region's deadly 1997 f...

    A man in northeast Arkansas and a woman in south central Kentucky both were killed as the storm that also included strong winds, hail and heavy rain that triggered flooding muscled its way through the area, according to authorities.

    More >>

    A man in northeast Arkansas and a woman in south central Kentucky both were killed as the storm that also included strong winds, hail and heavy rain that triggered flooding muscled its way through the area, according to authorities.

    More >>
  • China paves way for Xi Jinping to remain leader for years

    China paves way for Xi Jinping to remain leader for years

    Sunday, February 25 2018 4:05 AM EST2018-02-25 09:05:47 GMT
    Sunday, February 25 2018 10:17 PM EST2018-02-26 03:17:05 GMT
    Chinese President Xi Jinping speaks during a joint press briefing with French President Emmanuel Macron, at the Great Hall of the People in Beijing, Tuesday, Jan. 9, 2018. (AP Photo/Mark Schiefelbein, Pool)Chinese President Xi Jinping speaks during a joint press briefing with French President Emmanuel Macron, at the Great Hall of the People in Beijing, Tuesday, Jan. 9, 2018. (AP Photo/Mark Schiefelbein, Pool)

    China's official news agency says the ruling Communist Party has proposed removing a limit of two consecutive terms for the country's president and vice president.

    More >>

    China's official news agency says the ruling Communist Party has proposed removing a limit of two consecutive terms for the country's president and vice president.

    More >>
Powered by Frankly