88-07-04 BOEING: Amendment 39-5881. Applies to Model 737 series airplanes, as listed in Boeing Service Bulletin 737-32-1202, dated August 27, 1987, certificated in any category. Compliance required within the next six months after the effective date of this AD, unless previously accomplished.\n \n\tTo prevent damage to the hydraulic systems and loss of brakes and nose wheel steering, accomplish the following: \n\n\tA.\tInstall left and right main landing gear brake metering valve tire burst guards in accordance with Boeing Service Bulletin 737-32-1202, dated August 27, 1987, or later FAA- approved revision. \n\n\tB.\tAn alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety and which has the concurrence of an FAA Principal Maintenance Inspector, may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. \n\n\tC.\tSpecial flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD. \n\n\tAll persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. \n\n\tThis amendment becomes effective May 1, 1988.