MANUFACTURER: The Boeing Company Model MD-90-30
Airplanes SUBJECT: Airworthiness Directive 2011-03-09
SUMMARY: This AD requires installing new fire
handle shutoff system wiring. This AD was prompted by a possible
latent failure in the fire handle shutoff relay circuit due to a
lack of separation between engine wires. The FAA is issuing this AD
to minimize the possibility of a multiple engine shutdown due to
single fire handle activation.