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FAA
Federal Aviation Administration Department of Transportation
Aviation Safety
AIRWORTHINESS DIRECTIVE
Generated by Aircraft-logs.com — March 21, 2026

AD 56-26-03 ACTIVE

Crankshaft
Key Information
AD Number 56-26-03 Status Active
Effective Date Not specified Issue Date April 04, 1957
Docket Number Unknown Amendment Unknown
Product Type ["Engine"] Product Subtype Not specified
CFR Part --- - Part 39 CFR Section --- - _EMPTY_
Applicability
Manufacturer(s) Pratt & Whitney Division
Model(s) Military R-985 Series Wasp Jr. A Wasp Jr. B-4 Wasp Jr. B-5 Wasp Jr. SB Wasp Jr. SB-2 Wasp Jr. SB-3 Wasp Jr. T1B Wasp Jr. T1B2 Wasp Jr. T1B3 Wasp Jr. T3A Wasp Jr. TB Wasp Jr. TB-2
Related Airworthiness Directives
Supersedes 54-22-02
Affected ADs ["56-23-2"]
Office of Primary Responsibility
["AIR-720: Operational Safety Branch"]
AD 56-26-03 — Crankshaft
Printed from Aircraft-logs.com — 03/21/2026