# AD 79-01-01: Screws in Control System - Type: Airworthiness directive - Status: Current - Products: Textron 100, 200, 35-B33, 35-C33, 35-C33A, 56TC, 58, 58A, 58P, 58PA, 58TC, 58TCA and 25 more - Effective: January 8, 1979 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small/large airplane - Amendment: 39-3386 - Registered aircraft: 8,428 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5F222361CCFDF661862569850046DF63.0001 - DRS record last changed: January 21, 2026 - Page: https://openairdocs.org/ad/79-01-01 ## The airworthiness directive 79-01-01 BEECH: Amendment 39-3386. Applies to the following models and serial number airplanes, certificated in all categories, except those that have previously complied with AD 74-13-02: MODELS SERIAL NUMBERS ITEM NUMBERS (Refers to Items in Table I) F33A CE-447 through CE-684 (1), (2) F33A CE-372 (2) F33C CJ-31 through CJ-128 (1), (2) G33 CD-1292 through CD-1304 (1), (2) 35-C33 CD-970 (1), (2) 35-C33, 35-C33A CD-1066 & CE-62 (2) 35-B33 CD-700 (2) V35B D-9478 through D-9480, D-9482 through D-9531, D-9533 through D-9536 and D-9539 through D-9968 (1) A36 E-323 (2) A36 E-441 through E-954 (1), (2) D55 & D55A TE-485, TE-615, TE-703 and TE-710 (2) E55 & E55A TE-790, TE-911 (2) E55 & E55A TE-905, TE-923 through TE-937, TE-939, TE-940, TE-942, and TE-943 through TE-1084 (1), (2) 56TC TG-78 and TG-83 (2) 58 & 58A TH-49, TH-77, TH-114, TH-180, TH-217, TH-324 (2) 58 & 58A TH-145, TH-340 and TH-343 through TH-779(1), (2) 58P & 58PA TJ-2 through TJ-97 (1), (2) 58TC & 58TCA TK-1 through TK-37 (1), (2) 65-B80 LD-441 through LD-511 (1), (3), (5), (6), (7) 70 LB-31 through LB-35 (1), (3), (5), (6), (7) B90 & C90 LJ-500 through LJ-706 (1), (3), (5), (6), (7) E90 LW-1 through LW-209 (1), (3), (5), (6), (7) 95-A55 TC-241 (1) 95-B55 & 95-B55A TC-661 and TC-1510 (2) 95-B55 & 95-B55A TC-1570 through TC-2011 (1), (2) 95-C55 & 95-C55A TE-271 (2) 95-C55 & 95-C55A TE-415 (1) 99, 99A, A99A, B99 U-134 through U-164 (1), (3), (4), (5), (6), (7) 100 & A100 B-61 through B-178, B-180 through B-204 and B-206 through B-231 (1), (3), (4), (5), (6), (7) B100 BE-1 through BE-19 (1), (3), (4), (5), (6), (7) 200 BB-2 through BB-185, & BB-187 through BB-199 (3), (4), (8), (9), (10) COMPLIANCE: Required as indicated unless already accomplished. To assure continued structural integrity of certain screws in the airplane control system, in accordance with instructions set forth herein and in Beechcraft Service Instructions No. 0629- 150, Revision II or later approved revisions, accomplish the following: A) Within 100 hours time-in-service after the effective date of this AD: For affected models and serial numbers, determine those Item Numbers applicable thereto by referring to the column above entitled "Item Numbers". Next, determine the number, type and location of screws by referring to Table I of this AD (see below). Replace each screw at the specified location except that an existing screw need not be replaced if inspection shows that the head has at least one raised or depressed "X" mark. Replace the screws one at a time at the hinge brackets to retain original alignment of the bracket. B) Any equivalent means of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. TABLE I Item 1. Two AN502-10-10 screws securing each hinge bracket at leading edge of rudder or ruddervator. Item 2. Two AN502-10-10 screws securing each hinge bracket at leading edge of elevator. Item 3. Two AN502-10-12 screws securing elevator control cables to forward bellcrank under pilot's compartment left floorboard. Item 4. Two AN503-8-8 screws securing elevator control cables to aft bellcrank in fuselage tail section. Item 5. Two AN503-8-10 screws securing rudder control cables to forward bellcrank under pilot's compartment floorboard aft of left rudder pedals. Item 6. Two AN503-8-6 screws securing rudder control cables to aft bellcrank in the fuselage tail section. Item 7. Two AN503-8-6 screws securing aileron control cables to bellcrank under floorboard just forward of the rear spar. Item 8. Two AN503-8-8 screws securing rudder control cables to forward bellcrank under pilot's compartment floorboard aft of left rudder pedals. Item 9. Two AN503-8-8 screws securing rudder control cables to the aft quadrant assembly in the fuselage tail section. Item 10. Two AN503-8-8 screws securing aileron control cables to bellcrank under floorboard just forward of the rear spar. This AD supersedes AD 74-13-02, Amendment 39-1874 (39 FR 20784). NOTE: Scheduling accomplishment of this Airworthiness Directive simultaneously with accomplishment of Airworthiness Directive No. 78-22-05 will result in a savings of man-hours. This amendment becomes effective January 8, 1979. ## Affected data sheets (6) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 3A16](https://openairdocs.org/tcds/3A16): Textron Aviation Inc.; names 12 of 21 models: 95-B55, 95-C55A, D55, 58, 95-A55, D55A, 95-C55, E55… - [TCDS 3A15](https://openairdocs.org/tcds/3A15): Textron Aviation Inc.; names 8 of 27 models: 35-C33A, V35B, A36, F33A, 35-C33, G33, F33C, 35-B33 - [TCDS A14CE](https://openairdocs.org/tcds/A14CE): Textron Aviation Inc.; names 7 of 12 models: A99A, B99, B100, A100, 100, 99A, 99 - [TCDS 3A20](https://openairdocs.org/tcds/3A20): Textron Aviation Inc.; names 5 of 22 models: B90, 65-B80, E90, 70, C90 - [TCDS A23CE](https://openairdocs.org/tcds/A23CE): Textron Aviation Inc.; names 4 of 4 models: 58TC, 58P, 58TCA, 58PA - [TCDS A24CE](https://openairdocs.org/tcds/A24CE): Textron Aviation Inc.; names 1 of 37 models: 200 ## 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: 8,428 (8,428 by airframe model, 0 by engine model) - Makers: Beech 7,789, Raytheon 637, Beech/Goedkerj L 1, Monocoupe 1 Models with the most aircraft: - [Beech A36](https://openairdocs.org/model/beech-a36): 1,907 aircraft (airframe model) - [Beech F33A](https://openairdocs.org/model/beech-f33a): 978 aircraft (airframe model) - [Beech V35B](https://openairdocs.org/model/beech-v35b): 913 aircraft (airframe model) - [Beech 95-B55 (T42A)](https://openairdocs.org/model/beech-95-b55-t42a): 774 aircraft (airframe model) - [Beech 58](https://openairdocs.org/model/beech-58): 726 aircraft (airframe model) - [Raytheon A36](https://openairdocs.org/model/raytheon-a36): 448 aircraft (airframe model) - [Beech 58P](https://openairdocs.org/model/beech-58p): 298 aircraft (airframe model) - [Beech 35-B33](https://openairdocs.org/model/beech-35-b33): 291 aircraft (airframe model) - [Beech 200](https://openairdocs.org/model/beech-200): 234 aircraft (airframe model) - [Beech C90](https://openairdocs.org/model/beech-c90): 216 aircraft (airframe model) - [Beech E-55](https://openairdocs.org/model/beech-e-55): 215 aircraft (airframe model) - [Raytheon 58](https://openairdocs.org/model/raytheon-58): 188 aircraft (airframe model) - [Beech 35-C33](https://openairdocs.org/model/beech-35-c33): 185 aircraft (airframe model) - [Beech 95-C55](https://openairdocs.org/model/beech-95-c55): 158 aircraft (airframe model) - [Beech E-90](https://openairdocs.org/model/beech-e-90): 145 aircraft (airframe model) - [Beech D55](https://openairdocs.org/model/beech-d55): 119 aircraft (airframe model) - [Beech 35-C33A](https://openairdocs.org/model/beech-35-c33a): 113 aircraft (airframe model) - [Beech 95-A55](https://openairdocs.org/model/beech-95-a55): 90 aircraft (airframe model) - [Beech 58TC](https://openairdocs.org/model/beech-58tc): 79 aircraft (airframe model) - [Beech 95-B55](https://openairdocs.org/model/beech-95-b55): 74 aircraft (airframe model) All 38 models: https://openairdocs.org/ad/79-01-01/models.md Every aircraft: https://openairdocs.org/ad/79-01-01/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.