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Aircraft-logs.com helps aircraft owners and maintenance professionals maintain comprehensive, organized maintenance records with AI-powered assistance. Say goodbye to paper logbooks and spreadsheets—manage everything in one secure, cloud-based platform.

Key Features

Digital Logbooks

Track all maintenance activity with searchable, organized digital records

Component Tracking

Monitor life-limited parts, TBO intervals, and component lifecycles

AD Compliance

Track Airworthiness Directives with automatic due date calculations

AI Assistant

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Document Storage & OCR

Upload documents and extract text automatically with OCR scanning

Quick Info

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Pricing

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per aircraft/month

Unlimited storage
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50 OCR scans/month

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AD 57-21-01

Active

Rudder Trim Tab Pin

Print / Email Back to ADs

Key Information

AD Number

57-21-01

Status

Active

Effective Date

Not specified

Issue Date

January 23, 1958

Docket Number

Unknown

Amendment

N/A

Applicability

Product Type

["Aircraft"]

Product Subtype

["Small Airplane"]

Manufacturer(s)

Piper Aircraft Inc.

Model(s)

PA-23

Regulatory Text

57-21-01 PIPER: Applies to All Model PA-23 Aircraft.

Compliance required at next regular inspection period but not to exceed 100 hours.

Inspect the attachment of the rudder trim tab control rod to the rudder trim tab. If a flat head pin has been installed it must be replaced by an AN 23-10 clevis bolt and AN 960-10L washer, secured with an AN 320-3 nut and AN 380-2-2 cotter pin.

(Piper Service Bulletin No. 159 covers this subject.)

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References

Citation

This information is not available.

CFR Part --- - Part 39

CFR Section --- - _EMPTY_

Issuing Office

["AIR-720: Operational Safety Branch"]

FAA Documents

View Official AD on FAA Website Opens in new tab