# STC SA00721LA

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Express Air, United States
- Description: Installation of nine passenger seat configuration.
- Status date: February 23, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A21EU](https://openairdocs.org/tcds/A21EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C76D44FC454785BF85256CC1007E00F1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00721LA

## ADs that name it (0)

None.

## Approved models (1)

- British Aerospace (Scotland) HP 137 Jetstream Mk. 1 ([TCDS A21EU](https://openairdocs.org/tcds/A21EU))

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