Airworthiness directives › 2004-16-11
AD 2004-16-11 Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes
Models named: 757-200, -200CB, -200PF, -300 series, 767-200, -300, -300F, -400ER series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model 757-200, -200CB, -200PF, and -300 series airplanes, line numbers 1 through 998 inclusive; and Model 767-200, -300, -300F, and -400ER series airplanes, line numbers 1 through 869 inclusive; certificated in any category.
Compliance
Required as indicated, unless accomplished previously. To prevent a cracked hanger arm of the hydraulic pump of the ram air turbine (RAT) that can fracture under load and lead to failure of the RAT to provide hydraulic power to the primary flight control system during an emergency when both engines have failed, which could result in loss of hydraulic power to the primary flight controls and consequent loss of control of the airplane; accomplish the following: Service Bulletin Reference (a) The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the following service bulletins in Table 1 of this AD, as applicable: Table 1.—Service Bulletins Model Service bulletin Date Model 757-200, -200CB, and -200PF series airplanes Boeing Special Attention Service Bulletin 757-29-0060 September 12, 2002. Model 757-300 series airplanes Boeing Special Attention Service Bulletin 757-29-0061 September 12, 2002. Model 767-200, -300 and -300F series airplanes Boeing Special Attention Service Bulletin 767-29-0103 September 12, 2002. Model 767-400ER series airplanes Boeing Special Attention Service Bulletin 767-29-0106 September 12, 2002. Note 1: These service bulletins refer to Parker Service Bulletin 6513902-29-305, dated November 30, 2001, as an additional source of service information for the list of affected hydraulic pump serial numbers and for accomplishment of the reworking and reidentifying of the existing hydraulic pump for Model 757 and 767 series airplanes. Inspection of Serial Number (b) Within 36 months after the effective date of this AD, do an inspection to determine the serial number of the hydraulic pump in the RAT, per the service bulletin. Instead of inspecting the hydraulic pump in the RAT, a review of airplane maintenance records is acceptable if the serial number of the hydraulic pump can be positively determined from that review. Corrective Actions (c) If the hydraulic pump is found to have an affected serial number during the inspection or review of airplane maintenance records required by paragraph (b) of this AD, within 36 months after the effective date of this AD, do the corrective action(s) in either paragraph (c)(1) or (c)(2) of this AD. (1) Replace the hydraulic pump with a serviceable hydraulic pump that is outside the range of the affected serial numbers, per the service bulletin. (2) Rework and reidentify the hydraulic pump, per the service bulletin. Part Installation (d) As of the effective date of this AD, no person shall install on any airplane a RAT hydraulic pump, Parker part number (P/N) 65139-02 or Hamilton Sunstrand P/N 5903420, with an affected serial number as listed in Parker Service Bulletin 6513902-29-305, dated November 30, 2001, unless it has been modified per paragraph (c)(2) of this AD. Alternative Methods of Compliance (e) In accordance with 14 CFR 39.19, the Manager, Seattle Aircraft Certification Office, FAA, is authorized to approve alternative methods of compliance for this AD. Incorporation by Reference (f) Unless otherwise specified in this AD, the actions shall be done in accordance with the applicable service bulletin listed in Table 2 of this AD: Table 2.—Material Incorporated by Reference Service bulletin Date Boeing Special Attention Service Bulletin 757-29-0060 September 12, 2002. Boeing Special Attention Service Bulletin 757-29-0061 September 12, 2002. Boeing Special Attention Service Bulletin 767-29-0103 September 12, 2002. Boeing Special Attention Service Bulletin 767-29-0106 September 12, 2002. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; 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. Effective Date (g) This amendment becomes effective on September 13, 2004. Issued in Renton, Washington, on July 29, 2004. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 04-17982 Filed 8-6-04; 8:45 am] BILLING CODE 4910-13-P
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1