EASA SIB NM-07-39R1
Quiet Technology Aerospace (QTA) Stage 3 Hushkits, installed on Gulfstream G-1159 series aircraft
The Special Airworthiness Information Bulletin SAIB NM-07-39R1 is an FAA informational bulletin addressing issues with Quiet Technology Aerospace (QTA) Stage 3 Hushkits installed on Gulfstream G-1159 series aircraft, including G-II, G-III, and G-IIB models. It highlights the discovery of failed, cracked, or yielded forward bearing fitting attach bolts on these hushkits and provides updated service recommendations to mitigate the issue.