66-22-01\tBOEING: Amdt. 39-284 Part 39 Federal Register September 7, 1966. Applies to Model 707-300B, 707-300B (ADV), and 707-300C Series Airplanes.\n \n\tWithin the next 100 hours' time in service after the effective date of this AD, until an antiskid HF filter is installed in accordance with Boeing Service Bulletin 2367 (R-2), dated June 16, 1966, or later FAA-approved revision, or an equivalent approved by the Chief, Aircraft Engineering Division, FAA Western Region, amend the Certification Limitation Section I of FAA-approved Airplane Flight Manuals, Boeing Model 707-300B (Boeing Document D6-1571), Model 707-300B (ADV) (Boeing Documents D6-1576 and D6-1588) and Model 707-300C (Boeing Documents D6-1575 and D6-1587) to include the following or an FAA-approved equivalent: \n\n\tANTISKID LIMITATIONS \n\n\tUntil antiskid HF filter installation is accomplished either during airplane manufacturer or by Service Bulletin, do not use HF to transmit between 2 and 6.5 mc. with antiskid on during taxi takeoff roll and landing.\n \n\tThis directive effective September 7, 1966.