MANUFACTURER: Piper Aircraft, Inc. Model
PA-28-161 Airplanes SUBJECT: Airworthiness Directive 2010-26-04
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for the products listed above that are
equipped with Thielert Aircraft Engine GmbH (TAE) Engine Model
TAE-125-01 installed per Supplemental Type Certificate (STC) No.
SA03303AT. This AD requires installing a full authority digital
engine control (FADEC) backup battery, replacing the supplement
pilot's operating handbook and FAA approved airplane flight manual,
and revising the limitations section of the supplement airplane
maintenance manual. This AD was prompted by an incident where an
airplane experienced an in-flight engine shutdown caused by a
momentary loss of electrical power to the FADEC. We are issuing
this AD to prevent interruption of electrical power to the FADEC,
which could result in an uncommanded engine shutdown. This failure
could lead to a loss of engine power.