Evaluation and Mitigation of Aircraft Slide Evacuation Injuries (2008) / Chapter Skim
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From page 8... ...
8Using different databases, a total of 142 emergency evacuation events involving slides were collected; in these events, there were 441 minor injuries and 35 serious injuries. A complete list of the 142 events is included in Appendix D
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90 5 10 15 20 25 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Year N um be r o f E m er ge nc y Ev ac ua tio n Ev en ts In vo lv in g Sl id es 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 R at e of E m er ge nc y Ev ac ua tio n Ev en ts In vo lv in g Sl id es p er 1 00 ,0 00 D ep ar tu re s fo r P ar t 1 21 No. of Emergency Evacuation Events Rate of Emergency Evacuation Events Involving Slides 0 10 20 30 40 50 60 70 80 90 100 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Year Pe rc en ta ge Figure 1.
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AIS 2 is not the same as that between AIS 4 and AIS 5. Table 2 shows the AIS severity code.
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11 Figure 4. Number of incidents and accidents involving emergency slide evacuation per year.
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12 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1996 1998 2000 2002 2004 2006 Year R at e Rate of Emergency Evacuation Events Involving Slides per 100,000 Departures for 14 CFR Part 121 Accident Rate per 100,000 Departures for 14 CFR Part 121 (Source: NTSB) Figure 7.
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of the slide, as there was no ground assistance. Another female, aged 73, sustained a serious injury at the bottom of the slide.
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The cabin crew noted difficulties during the evacuation process. Some flight attendants let people take their belongings with them while others forced people to leave their belongings when evacuating.
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bottom is 1.94 seconds when the coefficient of friction is 0.4 versus 2.17 seconds when the coefficient of friction is 0.6. Figure 12 shows the evacuee speed on the slide as the function of time with varying initial velocity.
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From page 16... ...
ference in the length of the slides and the distance from the top of the slide to the ground. The results indicate that at an initial velocity of 1.83 m/sec and a coefficient of friction of 0.4, it takes about 1.94 seconds to slide down from the upper deck of the A380 versus 1.88 seconds to slide down from the upper deck of the B747.
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From page 17... ...
Wind had an adverse effect on slide use in 12.4 percent of the accidents. In these cases, the wind blew the inflatable slides up against the sides of the aircraft, preventing slide use.
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