AD 73-14-04

final rule

Airworthiness Directives; Rockwell Commander Model 112 Airplanes

AD Number
73-14-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

prior to next flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Rockwell Commander Model 112 airplanes, Serial Numbers 3 through 90 certificated in all categories.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Engine and Prop Controls

Applicability Source Text

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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Superseded AD: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Superseded By: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

Show stored source text (verify against official source)
AD Final Rules - DRS_73-14-04.html
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Print/Save as PDF
Document Versions
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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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.