AD 64-05-04

final rule

Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft

AD Number
64-05-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
Federal Register: February 29, 1964

Applicability

TypeManufacturerModelDetails
aircraft Piper Aircraft Inc. PA-22 Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft
aircraft Piper Aircraft Inc. PA-22-108 Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft
aircraft Piper Aircraft Inc. PA-22-135 Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft
aircraft Piper Aircraft Inc. PA-22-150 Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft
aircraft Piper Aircraft Inc. PA-22-160 Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft

Unsafe Condition

Failure of the upper main oleo bearing due to incorrect installation with the loading groove on the under side, insufficient balls, binding, sticking, wear, or misalignment causing bearing dislodgement or strut malfunction.

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

Required Actions

Inspect upper main oleo bearing (P/N 452333) to ensure proper installation with loading groove on top, check for 59 balls, no binding/sticking, and no wear allowing ball dislodgement. Remove/replace bearings with defects before flight. Clean and inspect bearing mounting area for burrs, wear, or misalignment issues. Repack bearings with MIL-G-3278 lubricant. Install bearings with loading groove on upper side. Alternatively, install new sealed bearing (P/N 452419) and boot (P/N 14087-00) to exempt from prior requirements.

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

Compliance Time

Within 25 hours' time in service after March 30, 1964, unless already accomplished within the preceding 475 hours' time in service, and every 500 hours' time in service thereafter.

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

Affected Aircraft

Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160, Serial Numbers 22-1 through 22-9848.

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

Federal Register Abstract

Upper Main Oleo Bearings

Applicability Source Text

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AD Number:
64-05-04
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft
Subject:
Upper Main Oleo Bearings
Status:
Current
Citation:
Federal Register: February 29, 1964
Citation Publish Date:
02/29/1964
Effective Date:
03/30/1964
Make:
Piper Aircraft Inc.
Model:
PA-22 | PA-22-108 | PA-22-135 | PA-22-150 | PA-22-160
Product Type:
Aircraft
Product Subtype:
Small Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
AIR-700: Compliance & Airworthiness Division
Office of Primary Responsibility:
AIR-720: Operational Safety Branch
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 64-05-04
CITATION:   [Federal Register: February 29, 1964]

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   64-05-04

SUBJECT HEADING:   Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective March 30, 1964.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
64-05-04 PIPER: Amdt. 693 Part 507 Federal Register February 29, 1964. Applies to Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft, Serial Numbers 22-1 through 22-9848.

Compliance required within 25 hours' time in service after the effective date of this AD, unless already accomplished within the preceding 475 hours' time in service, and every 500 hours' time in service thereafter.

(a) Remove the oleo strut, clean the upper bearing, Piper P/N 452333, and inspect the bearing to determine that its loading groove is on the top side. Remove bearings installed with the loading grooves on the under side.

(b) Inspect removed bearing, P/N 452333, to insure that 59 balls are installed, no binding or sticking exists, and that the bearing is not worn to the point where the balls are easily dislodged through the loading groove. If any of these defects are found, replace the bearing before further flight.

(c) Whenever a bearing is removed, clean and inspect the bearing mounting area to insure that it is free of burrs, protrusions, wear or other conditions which could cause bearing misalignment with the strut. Correct deficiencies prior to reinstallation of bearings.

(d) Repack bearings, P/N 452333, with MIL-G-3278 type lubricant.

(e) Reinstall bearings, P/N 452333, with the ball loading groove on the upper side.

(f) When both a new type sealed bearing Piper P/N 452419, and a boot Piper P/N 14087-00, or FAA approved equivalents are incorporated on the aircraft, compliance with (a), (b), (d) and (e) is no longer required.

(Piper Service Letter No. 405, dated October 1, 1963, and Piper Service Memo. No. 73 pertain to this same subject.)

This directive effective March 30, 1964.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_64-05-04.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
64-05-04
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft
Subject:
Upper Main Oleo Bearings
Status:
Current
Citation:
Federal Register: February 29, 1964
Citation Publish Date:
02/29/1964
Effective Date:
03/30/1964
Make:
Piper Aircraft Inc.
Model:
PA-22 | PA-22-108 | PA-22-135 | PA-22-150 | PA-22-160
Product Type:
Aircraft
Product Subtype:
Small Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
AIR-700: Compliance & Airworthiness Division
Office of Primary Responsibility:
AIR-720: Operational Safety Branch
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 64-05-04
CITATION:   [Federal Register: February 29, 1964]

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   64-05-04

SUBJECT HEADING:   Airworthiness Directives; Piper Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective March 30, 1964.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
64-05-04 PIPER: Amdt. 693 Part 507 Federal Register February 29, 1964. Applies to Models PA-22, PA-22-108, PA-22-135, PA-22-150, and PA-22-160 Aircraft, Serial Numbers 22-1 through 22-9848.

Compliance required within 25 hours' time in service after the effective date of this AD, unless already accomplished within the preceding 475 hours' time in service, and every 500 hours' time in service thereafter.

(a) Remove the oleo strut, clean the upper bearing, Piper P/N 452333, and inspect the bearing to determine that its loading groove is on the top side. Remove bearings installed with the loading grooves on the under side.

(b) Inspect removed bearing, P/N 452333, to insure that 59 balls are installed, no binding or sticking exists, and that the bearing is not worn to the point where the balls are easily dislodged through the loading groove. If any of these defects are found, replace the bearing before further flight.

(c) Whenever a bearing is removed, clean and inspect the bearing mounting area to insure that it is free of burrs, protrusions, wear or other conditions which could cause bearing misalignment with the strut. Correct deficiencies prior to reinstallation of bearings.

(d) Repack bearings, P/N 452333, with MIL-G-3278 type lubricant.

(e) Reinstall bearings, P/N 452333, with the ball loading groove on the upper side.

(f) When both a new type sealed bearing Piper P/N 452419, and a boot Piper P/N 14087-00, or FAA approved equivalents are incorporated on the aircraft, compliance with (a), (b), (d) and (e) is no longer required.

(Piper Service Letter No. 405, dated October 1, 1963, and Piper Service Memo. No. 73 pertain to this same subject.)

This directive effective March 30, 1964.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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