# AD 75-05-01: Control Cable Pulleys - Type: Airworthiness directive - Status: Current - Products: Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series, 707-300C Series, 707-400 Series, 720 Series, 720B Series, 727-100 Series, 727-100C Series and 25 more - Effective: April 7, 1975 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-2142 - Registered aircraft: 917 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EF6418B2D38A202486256E0D0049202A.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/75-05-01 ## The airworthiness directive 75-05-01 BOEING: Amendment 39-2096 as amended by Amendment 39-2142. Applies to Boeing Models 707/720, 727, 737, and 747 series airplanes categorized as Groups I, II, III, IV and V below, certificated in all categories: Group I: All Boeing Model 707/720, 727, 737 series airplanes categorized as Group I in Boeing Alert Service Bulletins 3204 (707), Revision 2; 727-27-155, Revision 1; 737-27-1073, Revision 1, or later FAA approved revisions. Only compliance required is with Paragraphs A and B. Group II: All Boeing Model 707/720 and 727 series airplanes categorized as Group II in Boeing Alert Service Bulletins 3204 (707), Revision 2, and 727-27-155, Revision 1, or later FAA approved revisions. Only compliance required is with Paragraph A and B. Group III: All Boeing Model 707/720 and 727 series airplanes categorized as Group III in Boeing Alert Service Bulletins 3204 (707), Revision 2, and 727-27-155, Revision 1, or later FAA approved revisions. Only compliancerequired is with Paragraph C. Group IV: All Boeing Model 707/720, 727 and 737 series airplanes not categorized as Group I, II, or III, which have had pulleys replaced with Arvan Inc./Tansey pulleys MS 20220-3 or -4, or SMS 20220-3 or -4 (color black only) (BAC P30F8 or BAC P30F9). Only compliance required is with Paragraph D. Group V: All Boeing Model 747 series airplanes categorized in Boeing Service Bulletin 747-27-2133 as having had control cable pulleys in the speed brake system replaced with Arvan Inc./Tansey pulleys BAC P30F8 (color black only). Only compliance required is with Paragraph D for BAC P30F8 pulleys. A. To detect cracks in Arvan Inc./Tansey control cable pulleys MS 20220-3 and -4 or SMS 20220-3 or -4 (color black only) accomplish the following: 1. Within the next 25 hours time in service from the effective date of this amendment to Amendment 39-2096, unless already accomplished, inspect the control cable pulleys which are located in the critical areas of the airplane in accordance with Boeing Alert Service Bulletins 3204 (707), 727-27- 155, and 737-27-1073, or later FAA approved revision, or in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region. The critical areas are defined in the above Boeing Alert Service Bulletins. 2. If crack(s) are found, replace the pulleys in accordance with the above Boeing Alert Service Bulletins, before further flight. B. Replace all Arvan Inc./Tansey control cable pulleys MS 20220-3 and -4 or SMS 20220-3 or - 4 (color black only) as follows: 1. Within 100 hours time in service from the effective date of this amendment to Amendment 39-2096, unless already accomplished, replace those pulleys located in the critical areas defined in Boeing Alert Service Bulletins 3204 (707), 727-27-155, and 737-27-1073, or later FAA approved revisions. 2. Replace all other affected pulleys within 600 hours from the effective date of this AD, unless already accomplished. C. Within 600 hours time in service from the effective date of this amendment to Amendment 39-2096, unless already accomplished, replace all Arvan Inc./Tansey control cable pulleys MS 20220-3 and -4 or SMS 20220-3 and -4 (color black only) in accordance with Boeing Alert Service Bulletin 3204 (707), Revision 2, and 727-27-155, Revision 1, or later FAA approved revisions. D. Within 1800 hours time in service from the effective date of this amendment to Amendment 39-2096, unless already accomplished, replace all Arvan Inc./Tansey control cable pulleys MS 20220-3 and -4 or SMS 20220-3 and -4 (color black only) with a pulley of the same part number but a different color. New Arvan replacement pulleys are brown in color. E. If it can be shown that a Group II, III, IV, or V airplane has not had any MS 20220-3 or -4, or SMS 20220-3 or -4, or BAC P30F8 or BAC P30F9 pulley replaced since August 16, 1974, then this AD is not applicable to that airplane. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplane Company, P. O. Box 3707, Seattle, Washington 98124. The documents may be examined at FAA Northwest Region, 9010 East Marginal Way South, Seattle, Washington. Amendment 39-2096 became effective February 24, 1975. This amendment 39-2142 becomes effective April 7, 1975. ## Affected data sheets (6) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A20WE](https://openairdocs.org/tcds/A20WE): The Boeing Company; names 12 of 14 models: 747-100B Series, 747SP Series, 747-400D Series, 747-400F Series, 747-200B Series, 747-200F Series, 747-300 Series, 747-200C Series… - [TCDS A16WE](https://openairdocs.org/tcds/A16WE): The Boeing Company; names 9 of 17 models: 737-500 Series, 737-100 Series, 737-200C Series, 737-800 Series, 737-300 Series, 737-200 Series, 737-700 Series, 737-400 Series… - [TCDS A3WE](https://openairdocs.org/tcds/A3WE): The Boeing Company; names 6 of 6 models: 727-100 Series, 727 Series, 727-200 Series, 727-100C Series, 727-200F Series, 727C Series - [TCDS 4A21](https://openairdocs.org/tcds/4A21): The Boeing Company; names 4 of 4 models: 707-100B Short Body, 707-200, 707-100 Long Body, 707-100B Long Body - [TCDS 4A26](https://openairdocs.org/tcds/4A26): The Boeing Company; names 4 of 4 models: 707-300B Series, 707-400 Series, 707-300 Series, 707-300C Series - [TCDS 4A28](https://openairdocs.org/tcds/4A28): The Boeing Company; names 2 of 2 models: 720B Series, 720 Series ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 917 (917 by airframe model, 0 by engine model) - Makers: Boeing 917 Models with the most aircraft: - [Boeing 737-823](https://openairdocs.org/model/boeing-737-823): 278 aircraft (airframe model) - [Boeing 737-800](https://openairdocs.org/model/boeing-737-800): 139 aircraft (airframe model) - [Boeing 737-824](https://openairdocs.org/model/boeing-737-824): 135 aircraft (airframe model) - [Boeing 737-832](https://openairdocs.org/model/boeing-737-832): 73 aircraft (airframe model) - [Boeing 737-890](https://openairdocs.org/model/boeing-737-890): 60 aircraft (airframe model) - [Boeing 737-724](https://openairdocs.org/model/boeing-737-724): 36 aircraft (airframe model) - [Boeing 737-790](https://openairdocs.org/model/boeing-737-790): 14 aircraft (airframe model) - [Boeing 737-752](https://openairdocs.org/model/boeing-737-752): 13 aircraft (airframe model) - [Boeing 747-446](https://openairdocs.org/model/boeing-747-446): 10 aircraft (airframe model) - [Boeing 727-223](https://openairdocs.org/model/boeing-727-223): 9 aircraft (airframe model) - [Boeing 737-400](https://openairdocs.org/model/boeing-737-400): 8 aircraft (airframe model) - [Boeing 747-422](https://openairdocs.org/model/boeing-747-422): 8 aircraft (airframe model) - [Boeing 737-852](https://openairdocs.org/model/boeing-737-852): 7 aircraft (airframe model) - [Boeing 737-500](https://openairdocs.org/model/boeing-737-500): 6 aircraft (airframe model) - [Boeing 737-436](https://openairdocs.org/model/boeing-737-436): 6 aircraft (airframe model) - [Boeing 737-700](https://openairdocs.org/model/boeing-737-700): 5 aircraft (airframe model) - [Boeing 747-412](https://openairdocs.org/model/boeing-747-412): 5 aircraft (airframe model) - [Boeing 727-227](https://openairdocs.org/model/boeing-727-227): 4 aircraft (airframe model) - [Boeing 737-300](https://openairdocs.org/model/boeing-737-300): 4 aircraft (airframe model) - [Boeing 737-883](https://openairdocs.org/model/boeing-737-883): 4 aircraft (airframe model) All 82 models: https://openairdocs.org/ad/75-05-01/models.md Every aircraft: https://openairdocs.org/ad/75-05-01/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.