Airworthiness Directive · Amendment 39-15745 · Boeing Model 737-400, -500, -600, -700, -700C, -800, and -900 Series Airplanes
Boeing Model 737-400, -500, -600, -700, -700C, -800, and -900 Series Airplanes
This AD applies to the Boeing airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category.
(1) Model 737-400 and -500 series airplanes as identified in Boeing Alert Service Bulletin 737-30A1059, dated September 10, 2007.
(2) Model 737-600, -700, -700C, -800, and -900 series airplanes as identified in Boeing Service Bulletin 737-30A1057, Revision 1, dated October 31, 2007.
We are adopting a new airworthiness directive (AD) for certain Boeing Model 737-400, -500, -600, -700, -700C, -800, and -900 series airplanes. This AD requires an inspection to determine the part and serial numbers of the windshield wiper motors for the pilot's and first officer's windshields, and doing applicable corrective actions. This AD results from two reports that the left and right windshield wipers stopped working in flight. We are issuing this AD to prevent failure of the windshield wipers in wet weather, which could result in decreased visibility for the flightcrew.
Comply with this AD within the compliance times specified, unless already done.
Except as provided by paragraph (g) of this AD: Within 60 months after the effective date of this AD, inspect to determine the part number and serial number of the windshield wiper motors for the pilot's and first officer's windshields, and do all applicable corrective actions, by accomplishing all of the applicable actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin 737-30A1059, dated September 10, 2007 (for Model 737-400 and -500 series airplanes); or Boeing Service Bulletin 737-30A1057, Revision 1, dated October 31, 2007 (for Model 737-600, -700, -700C, -800, and -900 series airplanes); as applicable. A review of airplane maintenance records is acceptable in lieu of the inspection required by paragraph (f) of this AD if the part number and serial number of the windshield wiper motors can be conclusively determined from that review. Following the inspection or records review, as applicable, for any windshield wiper motor that is found not to be affected by the requirements of this AD, re-identifying the part number is not required.
Note 1: Boeing Alert Service Bulletin 737-30A1059, dated September 10, 2007; and Boeing Service Bulletin 737-30A1057, Revision 1, dated October 31, 2007; refer to Rosemount Aerospace Service Bulletin 2313M-347/2313M-348-30-01, dated June 30, 2006, as an additional source of service information for determining whether the windshield wiper motor (identified in the Rosemount service bulletin as the “power module”) has been previously replaced and for changing the part number.
Note 2: Appendix A of Rosemount Aerospace Service Bulletin 2313M-347/2313M-348-30-01, dated June 30, 2006, identifies an incorrect serial number for Model Number 2313M-348-3. Serial number M252” should be M0252.
Note 3: Rosemount Aerospace Service Bulletin 2313M-347/2313M-348-30-01, dated June 30, 2006, specifies marking affected parts with an approved opaque material per BAC5307, classification RO, with an approved permanent marking material; however, for the purposes of this AD, any permanent method of part marking is acceptable.
For Model 737-400, -500, -600, -700, and -800 series airplanes: Accomplishing the modification required by paragraph (b) of AD 2003-20-13, amendment 39-13331, is acceptable for compliance with the requirements of paragraph (f) of this AD, provided that no Rosemount Aerospace windshield wiper motor having P/N 2313M-347-3 or P/N 2313M-348-3 (P/N 2313M347-3 or P/N 2313M348-3) has been installed.
For Model 737-600, -700, -700C, -800, and -900 series airplanes: Actions done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 737-30A1057, dated October 6, 2006, are acceptable for compliance with the requirements of paragraph (f) of this AD; provided that the wiper motor serial number was legible for inspection purposes and the operational test specified in Step 3 in Work Packages 2 and 3 of the Accomplishment Instructions of Boeing Alert Service Bulletin 737-30A1057, Revision 1, dated October 31, 2007, was completed.
(i) As of the effective date of this AD, no person may install Rosemount Aerospace windshield wiper motors having P/N 2313M-347-3 or P/N 2313M-348-3 (P/N 2313M347-3 or P/N 2313M348-3) on any airplane.
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
