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

AD 90-21-01 SUPERSEDED

Third stage stator assembly
WARNING: This AD has been superseded and is no longer active. Replaced by: 91-04-02. Refer to the superseding AD(s) for current requirements.
Key Information
AD Number 90-21-01 Status Superseded
Effective Date Not specified Issue Date Not specified
Docket Number 90-ANE-18-AD Amendment 39-6749
Product Type Not specified Product Subtype Not specified
CFR Part --- - Part 39 CFR Section N/A
Applicability
Manufacturer(s) Honeywell International Inc.
Model(s) TPE331-1 TPE331-2 TPE331-2UA TPE331-3U TPE331-3UW TPE331-5 TPE331-5A TPE331-6 TPE331-61-A TSE331-3U
Related Airworthiness Directives
Superseded By 91-04-02
AD 90-21-01 — Third stage stator assembly
Printed from Aircraft-logs.com — 03/21/2026