# STC SR09172RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Helicopter Technology Co, United States
- Description: Installation of a replacement main rotor blade without a leading edge abrasion strip, part number 500P2100-BSC and BS-1 per Helicopter Technology Company (HTC) Maintenance Manual HTCM-001 latest FAA approved revision.
- Applied: April 4, 1997
- Status date: December 24, 2003
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/632AEF22F0B08FC686256F8F0058E4F7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09172RC

## ADs that name it (2)

- [AD 2005-21-02](https://openairdocs.org/ad/2005-21-02): Main rotor blade (blade) · Main rotor blades P/N 500P2300-501/503/505 (Helicopter Technology STC SR01050LA or 2 others). Effective Nov 1, 2005. Named in the applicability
- [AD 2003-24-01](https://openairdocs.org/ad/2003-24-01) (historical): Main rotor blade (blade) · Replacement main rotor blade (Helicopter Technology STC SR09074RC or 2 others). Effective Dec 10, 2003. Named in the applicability

## Approved models (2)

- MD Helicopter Inc. 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopter Inc. 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))

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