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1. 03:36 AM - What do you think? (GOLDPILOT@AOL.COM)
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FAAST Blast =94 Week of Sept. 19 =93 Sept. 25, 2011
Biweekly FAA Safety Briefing News Update
FAA Approves Use of =9CVery Low Lead=9D Fuel
In a Special Airworthiness Bulletin issued last week, the FAA has approved
a new fuel=94100VLL (very low lead)=94for use on aircraft curr
ently operating
on 100LL. The approval was the result of collaboration with industry
partners on the ASTM International task force that evaluated data supporti
ng the
incorporation of grade 100VLL into specification D910. The new fuel is
identical to 100LL in all aspects, except that the maximum lead content is
reduced by about 19 percent. The FAA determined that 100 VLL meets all of t
he
performance requirements of grades 80, 91, 100, and 100LL and will perform
identically in existing aircraft and engines. The fuel also has the same
minimum octane rating and provides the same level of anti-knock performanc
e as
100LL and 100 avgas grades. Since the ASTM D910 standard specifies blue
coloration for both grade 100VLL avgas and grade 100LL avgas, these fuels
will appear identical.
For more information on 100VLL, refer to SAIB NE-11-55 at
_www.faa.gov/aircraft/safety/alerts/SAIB/_ (http://www.faa.gov/aircraft/saf
ety/alerts/SAIB/)
.
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