A federal agency installed weather cameras and took other steps in Alaska in recent years to aid the safety of sightseeing planes like the one that crashed last week and killed all nine people aboard, officials said.

Becky Bohrer
It could be weeks before investigators are able to move aircraft wreckage from the rugged site of a Southeast Alaska plane crash that killed nine people on a sightseeing tour out of Ketchikan Thursday.Michelle Theriault Boots
Small planes are big business for the cruise industry, including some of the largest tour companies in the world, such as Holland America Line and Princess Cruises.Pat Forgey
The tour plane that crashed Thursday in Misty Fjords National Monument, killing eight passengers and the pilot, was operated by Ketchikan-based Promech Air, a company that bills itself as the largest air taxi operator in the area.Pat Forgey,Nathaniel Herz
A list of major Alaska plane crashes through the years.Alaska Dispatch News
The remains of nine people killed Thursday in a plane crash near Ketchikan during a flightseeing tour were recovered Friday as federal officials continued their investigation into the wreck's cause. Troopers released a tentative list of the victims' names late Friday.Tegan Hanlon
Wildfires are responsible for the delay in the National Transportation Safety Board’s recovery efforts of the sightseeing plane that crashed and killed nine people Thursday near Ketchikan, an NTSB official said.Nathaniel Herz
A small plane skidded off the runway after a hard landing at Anchorage's Merrill Field airport Saturday afternoon, according to the Anchorage Police Department, leading to the closure of one of the airport's three runways.Alaska Dispatch News
NTSB investigators on Saturday arrived at the cliff-side wreckage of Thursday’s plane crash that killed nine people on a sightseeing tour of Misty Fjords National Monument as details emerged about the pilot and passengers. Nathaniel Herz
Alaska State Troopers say a potential search and rescue was canceled Wednesday when texts for help turned out to be sent by a malfunctioning cellphone.Jerzy Shedlock