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FAASTeam Notice
Type: Airworthiness
Notice Date: Tuesday, May 4, 2021
Notice Number: NOTC1827
Grumman AA-5 & AA-1 Horizontal Stabilizer Issue
This notice expired on
Wednesday, September 1, 2021

Recently a Grumman American AA-5 experienced an in-flight loss of pitch control which resulted in an aircraft accident.

Post-accident inspection of the aircraft revealed separation (debonding) of the L/H Horizontal Stabilizer upper and lower 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.

Through discussion with the ACO it was determined that an Airworthiness Directive should be created to address the debonding issue with the AA-5 and AA-1 Horizontal Stabilizer, and towards that end, the quickest path to producing an Airworthiness Directive (AD) was pursuit of an Immediately Adopted Rule (IAR), which the ACO is currently working on. The AD is still weeks out from completion. This information is being distributed, in an effort to educate the flying public during the interim time, until the AD is published.

Notice POC: Inspector Jeff Baumgartner, Washington FSDO, EA-27, 

jeffrey.baumgartner@faa.gov / 703-260-7664, x-214