Airworthiness Directive · Amendment 39-15707 · Hawker Beechcraft Corporation Model 390 Airplanes
Hawker Beechcraft Corporation Model 390 Airplanes
This AD applies to the following Model 390 airplanes that are certificated in any category:
(1) Serial numbers RB-1 and RB-4 through RB-209 equipped with hose kit 390-5805-0001 installed during compliance with Hawker Beechcraft Mandatory Service Bulletin 29-3800, dated May 2007); and
(2) Serial numbers RB-210 though RB-239.
The FAA is adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation (HBC) Model 390 airplanes. This AD requires you to inspect hydraulic pump pressure output hose assemblies to determine if they are from the affected lots, inspect for hydraulic fluid leaks if the hose assemblies are from the affected lots, and replace all affected hose assemblies. This AD results from reports of hydraulic leaks from the hydraulic pump pressure output hose assemblies. We are issuing this AD to prevent leakage of hydraulic fluid from the pump output hose within the engine compartment, which could result in an in-flight fire.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Initially inspect for suspect engine hydraulic pump pressure output hose assemblies, left part number (P/N) 170H143-6CR-0174 and right P/N 170H192D0394C275, by looking at the identification tags for work order numbers and manufacturing dates listed in Table 1 of the Hawker Beechcraft Mandatory Service Bulletin SB 29-3897, dated August 2008. If, as a result of this inspection, you find these affected hose assemblies are not installed, no further action is required | Within 10 hours time-in-service (TIS) after November 3, 2008 (the effective date of this AD). | Follow Hawker Beechcraft Mandatory Service Bulletin SB 29-3897, dated August 2008. |
| (2) If as a result of the inspection required in paragraph (e)(1) of this AD, you find one of the hose assemblies is installed, inspect for evidence of hydraulic fluid leakage | Initially within 10 hours time-in-service (TIS) after November 3, 2008 (the effective date of this AD) and repetitively thereafter at intervals not to exceed 10 hours TIS until whichever of the following occurs first: | Follow Hawker Beechcraft Mandatory Service Bulletin SB 29-3897, dated August 2008. |
| (i) When 40 hours total TIS is accumulated on the installed hose assembly; or | ||
| (ii) When the hose assembly is replaced following the procedures in the service information. | ||
| (3) Replace the hose assembly | Replace following paragraph (e)(3)(i) or (e)(3)(ii), whichever applies and occurs first: | Follow Hawker Beechcraft Mandatory Service Bulletin SB 29-3897, dated August 2008. |
| (i) Before further flight after any inspection where hydraulic fluid leakage was found; or | ||
| (ii) Within the next 200 hours TIS after November 3, 2008 (the effective date of this AD) or within the next 6 months after November 3, 2008 (the effective date of this AD), whichever occurs first. |
(f) The replacement required by paragraph (e)(3) of this AD is terminating action for this AD. This replacement may be done instead of the inspections required by paragraphs (e)(1) and (e)(2) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
