# STC SE178RM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Edlund Dale, United States
- Description: Increase fuel pump and vacuum pump accessory pod maximum overhang moments to 150 in.lbs. each.
- Status date: July 9, 1979
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 5E-1](https://openairdocs.org/tcds/5E-1)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/27626CC9425DA15485256CC2005A747A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE178RM

## ADs that name it (0)

None.

## Approved models (1)

- Pratt & Whitney Division R-985 Series ([TCDS 5E-1](https://openairdocs.org/tcds/5E-1))

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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.