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FAA to issue stabilizer AD on two Grumman singles

The FAA Safety Team issued a notice making the general aviation community aware that the FAA intends to issue an airworthiness directive on Grumman American-family AA–5 and AA–1 airplanes to address potential separation of upper and lower skin surfaces of horizontal stabilizers.

According to notice NOTC1827, issued May 4, a Grumman American AA–5 single-engine airplane was involved in an in-flight loss-of-pitch-control accident, after which inspection revealed separation, or debonding, of the left horizontal stabilizer skin surfaces from the end rib mounting flanges.

“Examination was also conducted on an exemplar aircraft for comparison, during which similar compromise of the structure was identified,” it said.

The FAA said it is preparing the AD for immediate adoption—an exception to its usual process that allows for a period of public comment before an AD takes effect.

Public comments would still be accepted, however; according to the FAA website, an AD issued as a final rule “may be changed later if substantive comments are received.”

AOPA ePublishing staff

AOPA ePublishing Staff editors are experienced pilots, flight instructors, and aircraft owners who have a passion for bringing you the latest news and AOPA announcements.
Topics: Advocacy, Single-Engine Piston, Airworthiness

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