# STC ST25BO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Simmonds Precision Products Inc, United States
- Description: Installation of BFGoodrich No. 50192-0000-series fuel quantity indicating system wiring harness.
- Status date: October 20, 1994
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0EB618388069041285256CCB00601A2F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST25BO

## ADs that name it (0)

None.

## Approved models (6)

- The Boeing Company 727 ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-100C Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200F Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727C Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

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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.