AD NUMBER: 2008-03-17
SUBJECT: Airworthiness Directive 2008-03-17 SUMMARY: We are adopting a
new airworthiness directive (AD) for the products listed above.
This AD results from mandatory continuing airworthiness information
(MCAI) originated by an aviation authority of another country to
identify and correct an unsafe condition on an aviation product.
The MCAI describes the unsafe condition as: Subsequent to accidents
involving Fuel Tank System explosions in flight * * * and on
ground, the FAA has published Special Federal Aviation Regulation
88 (SFAR88) in June 2001. In their Letters referenced
04/00/02/07/01-L296 dated March 4th, 2002 and 04/00/02/07/03-L024,
dated February 3rd, 2003, the JAA (Joint Aviation Authorities)
recommended the application of a similar regulation to the National
Aviation Authorities (NAA). Under this regulation, all holders of
type certificates for passenger transport aircraft with either a
passenger capacity of 30 or more, or a payload capacity of 7,500
pounds (3402 kg) or more, which have received their certification
since January 1st, 1958, are required to conduct a design review
against explosion risks. The unsafe condition is the potential of
ignition sources inside fuel tanks, which, in combination with
flammable fuel vapors, could result in fuel tank explosions and
consequent loss of the airplane. We are issuing this AD to require
actions to correct the unsafe condition on these products.