AD 2008-23-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Beechcraft | Corporation Model 390 | Airworthiness Directives; Hawker Beechcraft Corporation Model 390 Airplanes |
Unsafe Condition
Hydraulic fluid leaking from the engine hydraulic pump output fitting due to an improperly installed elbow connecting the output port to the pulse dampener hose.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove current preformed packing, elbow fitting, and jam nut from the left and right hydraulic pump pressure output port and install new parts. Install a hydraulic pump case drain check valve.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 200 hours time-in-service after December 22, 2008, or within the next 6 months after December 22, 2008, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hawker Beechcraft Corporation Model 390 airplanes, serial numbers RB-4 through RB-224, 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 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.