AD 83-18-01

final rule
Data completeness: 70%

Airworthiness Directives; AIR TRACTOR Model AT-300, AT-301, AT-302 Airplanes

AD Number
83-18-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Air Tractor, Inc. AT-300 Airworthiness Directives; AIR TRACTOR Model AT-300, AT-301, AT-302 Airplanes
aircraft Air Tractor, Inc. AT-301 Airworthiness Directives; AIR TRACTOR Model AT-300, AT-301, AT-302 Airplanes
aircraft Air Tractor, Inc. AT-302 Airworthiness Directives; AIR TRACTOR Model AT-300, AT-301, AT-302 Airplanes

Unsafe Condition

Failure of the vertical fin front spar fuselage attach fittings.

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

Required Actions

Inspect the vertical fin front spar fuselage attach fittings using dye penetrant procedures at specified locations per Snow Engineering Company Service Letter No. 26. Replace any cracked fittings with new part number 10398-3 fitting per Service Letter No. 47. Replace existing sheet metal fittings with part number 10398-3 by December 31, 1983 or upon reaching 2,000 hours time-in-service.

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

Compliance Time

Within the next 25 hours time-in-service, or 100 hours time-in-service since the last inspection per Service Letter No. 26, whichever occurs later, and within each 100 hours time-in-service thereafter for airplanes with less than 2,000 hours. For those with more than 2,000 hours: within next 25 hours or 50 hours since last inspection, and each 50 hours thereafter. Replacement required by December 31, 1983 or upon reaching 2,000 hours time-in-service.

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

Affected Aircraft

Air Tractor Model AT-300, AT-301, AT-302 (Serial Numbers 0001 through 0240)

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

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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