AD 2007-12-21 Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate No. A00010WI Previously Held by Raytheon Aircraft Company) Model 390 Airplanes

Makes named: raytheon, hawker beechcraft. Models named: 390. Read the applicability below — it usually turns on serial or part numbers too.

This AD affects the following Model 390 airplanes that are certificated in any category: (1) Serial numbers RB-1 through RB-49 that have Field Service Kit 390-9100 installed; and (2) Serial numbers RB-50 through RB-209.

To address this problem, you must do the following, unless already done:   Actions Compliance Procedures (1) Visually inspect the hydraulic pump outlet tube for evidence of chafing, excessive vibration, wear, deterioration, or hydraulic fluid leakage, as follows: (i) For the left-hand (LH) engine: Remove the clamp, perform the inspection, and replace the clamp with a new one as specified in Raytheon Mandatory Service Bulletin No. SB 29-3771 after each inspection (ii) For the right-hand (RH) engine: Perform the inspection. Removal and replacement of the clamps are not necessary Initially at whichever of the following occurs first and thereafter at intervals not to exceed 25 hours time-in-service (TIS) until the kits required in paragraph (e)(4) of this AD are incorporated: (A) Within the next 25 hours TIS after December 28, 2006 (the effective date of AD 2006-26-08); or (B) At the next inspection required by AD 2006-02-51. Inspect following Raytheon Safety Communique No. 267, dated January 2006. Raytheon Safety Communique No. 267, dated January 2006, addresses the LH engine. Use the same inspection procedures for the RH engine hydraulic pump outlet tube (P/N 390-580037). Remove and replace the clamp (LH only) following Raytheon Mandatory Service Bulletin No. SB 29-3771, dated January, 2006. (2) Replace the hydraulic pump outlet tube, part number (P/N) 390-580035 (or FAA-approved equivalent) for the LH engine or P/N 390-580037 (or FAA-approved equivalent) for the RH engine Each and every time any of the following occurs until the kits required in paragraph (e)(4) of this AD are incorporated (i) Prior to further flight after any inspection required in paragraph (e)(1) of this AD where evidence of chafing, excessive vibration, wear, deterioration, or hydraulic fluid leakage is found; and (ii) Within 1 hour TIS following identification of an intended or unintended engine operation with the hydraulic shutoff valve closed. Raytheon Aircraft Premier 1 Model 390 Maintenance Manual, P/N 390-590001-0015. (3) Incorporate Raytheon Aircraft Company Part Number 390-590001-0003C3TC6, dated September 16, 2006 into the airplane flight manual (AFM) Within 5 days after December 28, 2006 (the effective date of AD 2006-26-08) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may do the AFM change requirement of this AD. Make an entry into the aircraft records showing compliance with this portion of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). (4) Incorporate Kits No. 390-5804-0001 and 390-5805-0001 At whichever of the following that occurs first: (i) Within the next 25 hours TIS after June 20, 2007 (the effective date of this AD); or (ii) Within the next 45 days after June 20, 2007 (the effective date of this AD. Follow the instructions in the documents presented below as referenced in Hawker Beechcraft Mandatory Service Bulletin 29-3800, Issued May, 2007: (i) Raytheon Aircraft Company Kit—Dampener Support Improvement, Drawing No. 390-5804 (Kit 390-5804-0001 Field Service Kit). (ii) Raytheon Aircraft Company Kit—Hydraulic Pump Pressure Hose Installation No. 390-5805 (Kit 390-5805-0001 Field Service Kit). (f) After the actions required in paragraph (e)(4) of this AD are done: (1) the repetitive inspections and replacement of paragraphs (e)(1) and (e)(2) of this AD are no longer required. (2) the requirement in paragraph (e)(3) of this AD to incorporate Raytheon Aircraft Company Part Number 390-590001-0003C3TC6, dated September 16, 2006, into the AFM remains valid. Alternative Methods of Compliance (AMOCs) (g) The Manager, Wichita Aircraft Certification Office, FAA, ATTN: James P. Galstad, Propulsion Aerospace Engineer, ACE 116W, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-4135; fax: (316) 946-4107, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (h) AMOCs approved for AD 2006-26-08 are approved for this AD. Material Incorporated by Reference (i) You must use Raytheon Mandatory Service Bulletin No. SB 29-3771, dated January, 2006; Raytheon Safety Communique No. 267, dated January 2006; and Raytheon Aircraft Company Kit—Dampener Support Improvement, Drawing No. 390-5804 (Kit 390-5804-0001 Field Service Kit) and Raytheon Aircraft Company Kit—Hydraulic Pump Pressure Hose Installation No. 390-5805 (Kit 390-5805-0001 Field Service Kit), as referenced in Hawker Beechcraft Mandatory Service Bulletin 29-3800, Issued May, 2007, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of Raytheon Aircraft Company Kit—Dampener Support Improvement, Drawing No. 390-5804 (Kit 390-5804-0001 Field Service Kit) and Raytheon Aircraft Company Kit—Hydraulic Pump Pressure Hose Installation No. 390-5805 (Kit 390-5805-0001 Field Service Kit), as referenced in Hawker Beechcraft Mandatory Service Bulletin 29-3800, Issued May, 2007, under 5 U.S.C. 552(a) and 1 CFR part 51. (2) On February 2, 2006 (71 FR 5581, February 2, 2006), the Director of the Federal Register approved the incorporation by reference of Raytheon Mandatory Service Bulletin No. SB 29-3771, dated January, 2006; and Raytheon Safety Communique No. 267, dated January 2006. (3) For service information identified in this AD, contact Hawker Beechcraft Corporation, 9709 East Central, Wichita, Kansas 67291; telephone: (800) 429-5372 or (316) 676-3140. (4) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Issued in Kansas City, Missouri, on June 4, 2007. David R. Showers, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-11241 Filed 6-18-07; 8:45 am] BILLING CODE 4910-13-P

This AD is the result of continuing failures of the hydraulic pump outlet tubes and the need to incorporate improved design. We are issuing this AD to prevent failure of the hydraulic pump outlet tube and consequent leaking of hydraulic fluid. Such leakage could result in a fire. There is also a risk of loss of hydraulic system functions including normal gear extensions, speed brakes, roll spoilers, lift dump, and normal brakes.