AD 2015-20-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream | Aerospace Corporation | Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes |
Unsafe Condition
Corrosion on in-service air non-return valves could lead to failure of the HP Stage 5 air non-return valve in the open position, resulting in engine instability and uncommanded in-flight shutdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the Emergency Procedures section of the AFM within 30 days after the effective date. Revise the maintenance or inspection program within 30 days after the effective date to incorporate airworthiness limitations for the HP Stage 5 air non-return valves.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Gulfstream Aerospace Corporation Model GVI airplanes, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.