20 January 2010

EMAS Stops PSA Airlines CRJ2 at Charleston (KCRW)

A PSA Airlines Canadair CRJ-200 on behalf of US Airways, registration N246PS performing flight JIA-2495/US-2495 from Charleston,WV to Charlotte,NC (USA) with 30 passengers and 3 crew, overran runway 23 after rejecting takeoff at high speed at 16:13L (21:13Z) and got to a stop in the EMAS (Engineered Material Arrestor System) past the end of runway 23. No injuries occured, the airplane received substantial damage and probably needs its landing gear replaced.The airport had to be closed for about 5.5 hours until the airplane was removed from the arrestor bed.
The airport reported, that the airplane aborted the takeoff and came to a stop about 130 feet (40 meters) down the EMAS. The EMAS, which was installed in 2007, worked perfectly.

A standard EMAS installation extends 600 feet from the end of the runway. An EMAS arrestor bed can still be installed to help slow or stop an aircraft that overruns the runway, even if less than 600 feet of land is available.
(EMAS) is a bed of lightweight, crushable concrete built at the end of a runway. The purpose of an EMAS is to stop an aircraft overrun with no human injury and minimal aircraft damage (usually none). The aircraft is slowed by the loss of energy required to crush the concrete blocks. An EMAS is similar in concept to the runaway truck ramp made of gravel. It is intended to stop aircraft that have overshot a runway when there is an insufficient free space for a standard runway safety area (RSA).
Currently, EMAS is installed at 42 runway ends at 28 airports in the United States, with plans to install 6 EMAS systems at 6 additional U.S. airports.
EMAS Arrestments

To date, there have been four incidents where the technology has worked successfully to arrest aircraft which overrun the runway and in several cases has prevented injury to passengers and damage to the aircraft.
Metars:
KCRW 192154Z 00000KT 10SM BKN050 BKN080 12/05 A2991 RMK AO2 SLP129 T01170050
KCRW 192150Z 00000KT 10SM BKN050 BKN080 12/05 A2991 RMK AO2
KCRW 192054Z 00000KT 10SM BKN046 BKN055 13/05 A2990 RMK AO2 SLP128 T01280050 56015
KCRW 191954Z 00000KT 10SM SCT036 SCT050 BKN075 12/05 A2991 RMK AO2 SLP131 T01220050
KCRW 191854Z 20005KT 10SM SCT030 BKN060 11/05 A2992 RMK AO2 SLP134 T01060050
KCRW 191847Z 23006KT 10SM SCT030 BKN060 11/05 A2992 RMK AO2
KCRW 191754Z 29003KT 10SM OVC026 09/04 A2995 RMK AO2 SLP144 T00940044 10100 20017 58011
KCRW 191654Z 00000KT 10SM OVC019 08/04 A2998 RMK AO2 SLP155 T00830039
KCRW 191554Z 00000KT 7SM BKN022 BKN032 06/03 A2998 RMK AO2 SLP157 T00610033

By Simon Hradecky, created Tuesday, Jan 19th 2010 23:39Z, last updated Wednesday, Jan 20th 2010 08:49Z

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