http://www.cnn.com/2001/US/06/28/apache.inspections/index.html
CNN.com - Army grounds troubled Apache copters again - June 29, 2001
Army grounds troubled Apache copters again
June 29, 2001 Posted: 9:54 AM EDT (1354 GMT)
The AH-64 Apache attack helicopter entered service in 1984. It
uses laser, infrared and other high-tech systems to find,
track and attack targets.
By Chris Plante and Tom Spain
CNN Washington Bureau
WASHINGTON (CNN) -- The U.S. Army quietly grounded its entire fleet of
Apache attack helicopters two weeks ago to check for faulty tail rotors,
CNN has learned
The decision to halt Apache flights followed the recent crash of an
Israeli Apache helicopter in which the "tail rotor head assembly separated
from the aircraft in flight," an Army document says.
The Army issued a "safety of flight" message dated June 15 ordering all
Apache flights to end until the tail rotor of each of the 742 U.S.
helicopters is inspected.
A U.S. Army official who asked that he not be identified told CNN that it
is expected to take up to three months to complete the inspections and
return the entire fleet to flight status. Each inspection takes more than
four hours, officials said.
The Army also established a "temporary life limit" for the tail rotors of
1,000 hours of flying time, according to the June 15 flight safety center
document obtained by CNN.
If the tail rotor has more than 1,000 flight hours the "aircraft is
grounded until the blade is replaced or inspection procedures are
implemented," the document said.
The Apache helicopter has been pulled from flight status several times in
recent years for a variety of mechanical problems.
The deployment of Apache helicopters to Albania before the 1999 NATO
military action against Yugoslavia became an embarrassing debacle for the
Army when it took weeks to get 24 of the helicopters in place.
The Army memo says replacement of a tail rotor would cost more than
$41,000, which would amount to more than $30 million if all 742 required
replacement.
Until all inspections are completed, all Apaches are prohibited from
flight except "when combat operations or matters of life and death in
civil disasters or other emergencies are so urgent that they override the
consequences of continued aircraft operation," the Army document says.
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