AD 73-14-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Commander Aircraft Corporation | 112 | Airworthiness Directives; Rockwell Commander Model 112 Airplanes |
Unsafe Condition
Grommets sealing the ends of sliding control rods to flex cable housings may retain shavings that could interfere with cable operation, leading to potential control malfunction.
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Required Actions
Remove specified engine control components and covers, remove grommets sealing control rod ends, check controls for freedom of operation and shavings presence, then reassemble.
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Compliance Time
prior to next flight
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Affected Aircraft
Rockwell Commander Model 112 airplanes, Serial Numbers 3 through 90 certificated in all categories.
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Federal Register Abstract
Engine and Prop Controls
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-14-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-14-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Rockwell Commander Model 112 Airplanes Subject: Engine and Prop Controls Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/03/1973 Make: Commander Aircraft Corporation Model: 112 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-14-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1678 AD NUMBER: 73-14-04 SUBJECT HEADING: Airworthiness Directives; Rockwell Commander Model 112 Airplanes ACTION: SUMMARY: DATES: Effective July 3, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-14-04 ROCKWELL INTERNATIONAL: Amdt. 39-1678. Applies to Rockwell Commander Model 112 airplanes, Serial Numbers 3 through 90 certificated in all categories. Compliance is required prior to next flight. Accomplish the following: (1) Remove engine control knobs (throttle, mixture, propeller, carburetor heat) (2) Remove cover from throttle quadrant (Royalite) (3) Remove knob from throttle friction lock (4) Remove microphone bracket (5) Remove knob from fuel selector (6) Remove forward arm rest (not applicable on all models) (7) Remove center console fuel selector insert (Royalite) (8) Remove center console cover (Royalite) (9) Remove throttle quadrant cover (aluminum) (10) Move controls to full aft position to expose cables (11) Using a sharp instrument remove the grommets which seal ends of the sliding control rod to the flex cable housing, if installed. Controls which may have these grommets are: throttle, mixture, propeller and carburetor heat (12) Remove upper engine cowl, and remove grommets from opposite ends of cables. (Do not remove grommets from ends of cowl flap controls) (13) A. Functionally check all controls for freedom of operation. B. Ascertain that no shavings from the grommets are lodged between the cable housing and movable cable. (14) Reassemble using existing hardware Rockwell International, Albany Aircraft Division, Service Bulletin, No. SB-112-5 relates to this same subject. This amendment is effective July 3, 1973, and was effective on receipt for all recipients of the telegram dated June 11, 1973, which contained this amendment. FOOTER:
Document Text
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AD Final Rules - DRS_73-14-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-14-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Rockwell Commander Model 112 Airplanes Subject: Engine and Prop Controls Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/03/1973 Make: Commander Aircraft Corporation Model: 112 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-14-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1678 AD NUMBER: 73-14-04 SUBJECT HEADING: Airworthiness Directives; Rockwell Commander Model 112 Airplanes ACTION: SUMMARY: DATES: Effective July 3, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-14-04 ROCKWELL INTERNATIONAL: Amdt. 39-1678. Applies to Rockwell Commander Model 112 airplanes, Serial Numbers 3 through 90 certificated in all categories. Compliance is required prior to next flight. Accomplish the following: (1) Remove engine control knobs (throttle, mixture, propeller, carburetor heat) (2) Remove cover from throttle quadrant (Royalite) (3) Remove knob from throttle friction lock (4) Remove microphone bracket (5) Remove knob from fuel selector (6) Remove forward arm rest (not applicable on all models) (7) Remove center console fuel selector insert (Royalite) (8) Remove center console cover (Royalite) (9) Remove throttle quadrant cover (aluminum) (10) Move controls to full aft position to expose cables (11) Using a sharp instrument remove the grommets which seal ends of the sliding control rod to the flex cable housing, if installed. Controls which may have these grommets are: throttle, mixture, propeller and carburetor heat (12) Remove upper engine cowl, and remove grommets from opposite ends of cables. (Do not remove grommets from ends of cowl flap controls) (13) A. Functionally check all controls for freedom of operation. B. Ascertain that no shavings from the grommets are lodged between the cable housing and movable cable. (14) Reassemble using existing hardware Rockwell International, Albany Aircraft Division, Service Bulletin, No. SB-112-5 relates to this same subject. This amendment is effective July 3, 1973, and was effective on receipt for all recipients of the telegram dated June 11, 1973, which contained this amendment. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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