AD 67-12-05

final rule

Airworthiness Directives; Pilatus Model PC-6 Series Airplanes

AD Number
67-12-05
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

Applicability

TypeManufacturerModelDetails
aircraft Pilatus Aircraft Limited PC-6 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6-H1 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6-H2 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6/350 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6/350-H1 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6/350-H2 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6/A Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6/A-H1 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
aircraft Pilatus Aircraft Limited PC-6/A-H2 Airworthiness Directives; Pilatus Model PC-6 Series Airplanes

Unsafe Condition

Rubbing and wear of the two pulley flanges due to a change in direction of the aileron control system cables exceeding 3 degrees from the plane of their pulleys.

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

Required Actions

Install fairleads at the pulley support bracket on bulkhead Number 3 in accordance with Pilatus Service Bulletin No. 68 or later Swiss Federal Air Office-approved issue, or an FAA-approved equivalent.

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

Compliance Time

next 200 hours' time in service after the effective date of this AD

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

Affected Aircraft

Pilatus Model PC-6 Series Airplanes, Serial Numbers to 632.

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

Federal Register Abstract

Pulley Fairleads

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_67-12-05.html
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Details
AD Number:
67-12-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
Subject:
Pulley Fairleads
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/04/1967
Make:
Pilatus Aircraft Limited
Model:
PC-6 | PC-6-H1 | PC-6-H2 | PC-6/350 | PC-6/350-H1 | PC-6/350-H2 | PC-6/A | PC-6/A-H1 | PC-6/A-H2
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:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-12-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-387

AD NUMBER:   67-12-05

SUBJECT HEADING:   Airworthiness Directives; Pilatus Model PC-6 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective May 4, 1967.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   67-12-05 PILATUS: Amdt. 39-387, Part 39, Federal Register April 4, 1967. Applies to Model PC-6 Series Airplanes, Serial Numbers to 632.
Compliance required with the next 200 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent rubbing and wear of the two pulley flanges as a result of a change in direction of the aileron control system cables in excess of 3 degrees from the plane of their pulleys, install fairleads at the pulley support bracket on bulkhead Number 3 in accordance with Pilatus Service Bulletin No. 68 or later Swiss Federal Air Office-approved issue, or an FAA-approved equivalent.
This directive effective May 4, 1967.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_67-12-05.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
67-12-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
Subject:
Pulley Fairleads
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/04/1967
Make:
Pilatus Aircraft Limited
Model:
PC-6 | PC-6-H1 | PC-6-H2 | PC-6/350 | PC-6/350-H1 | PC-6/350-H2 | PC-6/A | PC-6/A-H1 | PC-6/A-H2
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:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-12-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-387

AD NUMBER:   67-12-05

SUBJECT HEADING:   Airworthiness Directives; Pilatus Model PC-6 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective May 4, 1967.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   67-12-05 PILATUS: Amdt. 39-387, Part 39, Federal Register April 4, 1967. Applies to Model PC-6 Series Airplanes, Serial Numbers to 632.
Compliance required with the next 200 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent rubbing and wear of the two pulley flanges as a result of a change in direction of the aileron control system cables in excess of 3 degrees from the plane of their pulleys, install fairleads at the pulley support bracket on bulkhead Number 3 in accordance with Pilatus Service Bulletin No. 68 or later Swiss Federal Air Office-approved issue, or an FAA-approved equivalent.
This directive effective May 4, 1967.

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.