AD 66-28-05

final rule

Airworthiness Directives; Pilatus Model PC-6 Series Airplanes

AD Number
66-28-05
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

Failure of the rudder pedal support due to cracks in the guide tube welding seams of part number 6232.196.

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

Required Actions

Visually inspect the guide tube welding seams of rudder pedal support P/N 6232.196 for cracks using a lamp and mirror within 50 hours' time in service after the effective date. Repeat inspections at intervals not exceeding 100 hours' time in service until modified. If cracks are found, before further flight, repair the part in an FAA-approved manner, replace with an unmodified part of the same part number, or replace with a modified/reinforced part per Pilatus Service Bulletin No. 65.

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

Compliance Time

Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 50 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection.

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

Affected Aircraft

Pilatus Aircraft Limited Model PC-6 Series Airplanes including 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.

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

Federal Register Abstract

Rudder Pedal Support

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_66-28-05.html
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AD Number:
66-28-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
Subject:
Rudder Pedal Support
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
11/19/1966
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: 66-28-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-306

AD NUMBER:   66-28-05

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

ACTION:  

SUMMARY:  

DATES:   Effective November 19, 1966.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   66-28-05 PILATUS: Amdt. 39-306, Part 39, Federal Register November 9, 1966. Applies to Model PC-6 Series Airplanes.
Compliance required as indicated.
To prevent failure of the rudder pedal support, accomplish the following:
(a) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 50 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection, until modified in accordance with (b)(3), visually inspect the guide tube welding seams of rudder pedal support, P/N 6232.196 for cracks, using a lamp and mirror.
(b) If a crack is found during an inspection required by (a), before further flight, accomplish one of the following or an FAA-approved equivalent -
(1) Repair the part in an FAA-approved manner;
(2) Replace the part with an unmodified part of the same part number; or,
(3) Replace the part with one modified or one repaired and reinforced in accordance with Swiss Office Federal de l'Air-approved Pilatus Service Bulletin No. 65.
This directive effective November 19, 1966.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_66-28-05.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
66-28-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Pilatus Model PC-6 Series Airplanes
Subject:
Rudder Pedal Support
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
11/19/1966
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: 66-28-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-306

AD NUMBER:   66-28-05

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

ACTION:  

SUMMARY:  

DATES:   Effective November 19, 1966.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   66-28-05 PILATUS: Amdt. 39-306, Part 39, Federal Register November 9, 1966. Applies to Model PC-6 Series Airplanes.
Compliance required as indicated.
To prevent failure of the rudder pedal support, accomplish the following:
(a) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 50 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection, until modified in accordance with (b)(3), visually inspect the guide tube welding seams of rudder pedal support, P/N 6232.196 for cracks, using a lamp and mirror.
(b) If a crack is found during an inspection required by (a), before further flight, accomplish one of the following or an FAA-approved equivalent -
(1) Repair the part in an FAA-approved manner;
(2) Replace the part with an unmodified part of the same part number; or,
(3) Replace the part with one modified or one repaired and reinforced in accordance with Swiss Office Federal de l'Air-approved Pilatus Service Bulletin No. 65.
This directive effective November 19, 1966.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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