AD 73-13-11
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | 19A | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | 23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | A23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | A23-19 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | A23-24 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | A23A | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | A24 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | A24R | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | B19 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| aircraft | Textron Aviation Inc. | Mitchell Industries, Inc. | B23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | 19A | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | 23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | A23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | A23-19 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | A23-24 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | A23A | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | A24 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | A24R | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | B19 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | B23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | C23 | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | M19A | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
| appliance | Textron Aviation Inc. | Mitchell Industries, Inc. | Automatic Pilot Instruments | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments |
Unsafe Condition
Interference of the flap control system with the automatic pilot roll servo may result in loss of aileron control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the automatic pilot roll servo assembly and all servo installation brackets from the airplanes or install the cable tensioner Kit PKMB-8 in accordance with Edo-Aire Mitchell Service Bulletin No. MB-8 dated June 7, 1973, or later FAA approved revision.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next ten (10) hours' time in service after the effective date of this AD
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Affected Aircraft
Mitchell Automatic Pilot Instruments installed in various Beech aircraft with a mechanical wing flap control system under Supplemental Type Certificates SA1346SW and SA1348SW, covering models 23, A23, A23A, A23-19, 19A, A24, A24R, B19, M19A, A23-24, B23, C23 with autopilot models Century I (AK341) and Century IIB (AK342).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Automatic Pilot Instruments
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-13-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-13-11 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies ...Show more Subject: Automatic Pilot Instruments Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/29/1973 Make: Textron Aviation Inc. | Mitchell Industries, Inc. Model: 19A | 23 | A23 | A23-19 | A23-24 | A23A | A24 | A24R | B19 | B23 | C23 | M19A | Automatic Pilot Instruments Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-13-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1677 AD NUMBER: 73-13-11 SUBJECT HEADING: Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments ACTION: SUMMARY: DATES: Effective June 29, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-13-11 MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Amendment 39-1677. Applies to Mitchell automatic pilot instruments installed in various Beech aircraft with a mechanical wing flap control system in accordance with the following Supplemental Type Certificates: STC NO. BEECH AIRPLANE MODELS AUTOPILOT MODEL SA1346SW 23, A23, A23A, A23-19, 19A, A24, Century I A24R, B19, M19A, A23-24, B23,C23 Model AK341 SA1348SW 23, A23, A23A, A23-19, 19A, B19, Century IIB M19A, A23-24, B23, C23, A24, A24R Model AK342 Compliance required within the next ten (10) hours' time in service after the effective date of this AD, unless already accomplished. To prevent interference of the flap control system with the automatic pilot roll servo, which may result in loss of aileron control, accomplish the following: Remove the automatic pilot roll servo assembly and all servo installation brackets from the airplanes or install the cable tensioner Kit PKMB-8 in accordance with Edo-Aire Mitchell Service Bulletin No. MB-8 dated June 7, 1973, or later FAA approved revision, or any other method approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas. The bulletin mentioned herein may be obtained from Edo-Aire Mitchell, P. O. Box 610, Mineral Wells, Texas 76067. This amendment becomes effective June 29, 1973. FOOTER:
Document Text
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AD Final Rules - DRS_73-13-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-13-11 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies ...Show more Subject: Automatic Pilot Instruments Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/29/1973 Make: Textron Aviation Inc. | Mitchell Industries, Inc. Model: 19A | 23 | A23 | A23-19 | A23-24 | A23A | A24 | A24R | B19 | B23 | C23 | M19A | Automatic Pilot Instruments Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-13-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1677 AD NUMBER: 73-13-11 SUBJECT HEADING: Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to Mitchell Automatic Pilot Instruments ACTION: SUMMARY: DATES: Effective June 29, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-13-11 MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Amendment 39-1677. Applies to Mitchell automatic pilot instruments installed in various Beech aircraft with a mechanical wing flap control system in accordance with the following Supplemental Type Certificates: STC NO. BEECH AIRPLANE MODELS AUTOPILOT MODEL SA1346SW 23, A23, A23A, A23-19, 19A, A24, Century I A24R, B19, M19A, A23-24, B23,C23 Model AK341 SA1348SW 23, A23, A23A, A23-19, 19A, B19, Century IIB M19A, A23-24, B23, C23, A24, A24R Model AK342 Compliance required within the next ten (10) hours' time in service after the effective date of this AD, unless already accomplished. To prevent interference of the flap control system with the automatic pilot roll servo, which may result in loss of aileron control, accomplish the following: Remove the automatic pilot roll servo assembly and all servo installation brackets from the airplanes or install the cable tensioner Kit PKMB-8 in accordance with Edo-Aire Mitchell Service Bulletin No. MB-8 dated June 7, 1973, or later FAA approved revision, or any other method approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas. The bulletin mentioned herein may be obtained from Edo-Aire Mitchell, P. O. Box 610, Mineral Wells, Texas 76067. This amendment becomes effective June 29, 1973. FOOTER:
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Retrieved: Apr 8, 2026
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