# STC SA2326SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: UNC/CFC Acquisition Co, United States
- Description: Installation of AiResearch TFE731-3-IE engines with new nacelles and pylons and associated systems changes; new external fuel tanks of increased capacity; increased ramp, takeoff, landing, and zero fuel weights; incorporation of stick pusher and rudder bias systems; and other associated changes.
- Status date: June 10, 1996
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A15](https://openairdocs.org/tcds/2A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E30136275069A9E985256CC200015CAB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2326SW

## ADs that name it (1)

- [AD 98-07-21](https://openairdocs.org/ad/98-07-21): Engine Tailpipe V-Band Coupling · AiResearch TFE731-3-IE engines (UNC/CFC Acquisition STC SA2326SW). Effective May 18, 1998. Named in the applicability

## Approved models (3)

- Lockheed Aircraft Corporation 1329-23A ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Aircraft Corporation 1329-23D ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Aircraft Corporation 1329-23E ([TCDS 2A15](https://openairdocs.org/tcds/2A15))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.