STC Holder Details: Keefer Aircraft Engineer

Subscriber Access

Daily DOT & FAA Regulatory Activity Regulatory Library Repair Station Access Repair Station Search Technical Support

Other Services

Non-Subscriber AD Search

Free Features

N-Number / Serial Search STC Search System Service Bulletin Index

Learn More

Contact Sales History System Description Repair Station Toolbox Aviation Maintenance & Eng. Directory Tutorial Videos / Demo Data The AD ReSource System
(Info & Demo Data)

Legalese

Terms of Service Privacy Policy

For Pilots

Info For Pilots IA Renewal FAA FSDO Directory Aviation Weather
The Aviation DataBase®
Complete Aviation Regulatory Library
Sept. 11 Sept. 11
DataBases updated: Nov 21st, 2025
Home Products Library Support Account Login Contact

STC Holder: Keefer Aircraft Engineer

The Aviation DataBase -- STC Search System
Aviation Data Service, Inc.

No. of STCs: 1

STC Holder: Keefer Aircraft Engineer
Address: 11457 Glendale Way South, Seattle, WA 98168, United States		 If you are an STC Holder, Contact us to have your company added here!
STC No.: SH242NWStatus: CurrentApp Date: Rev Date: 12/11/1975
TC Nos.: H3WE,
Models:
MD Helicopter Inc.:
369HS
ACO: AIR-770: West Certification Branch SEA
Installation of battery in Hughes369HS helicopter to replace original.