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STC SA1685WE

Supplemental type certificate · Puerto Rico Intl Airlines

Certificate· on FAA DRS

Holder: Puerto Rico Intl Airlines · United States
Status: Current · Amended
Status date: August 22, 1968
Product: Aircraft · Small Multi-Engine
Certification basis: Part 21
Data sheet: TCDSA-816

From FAA DRS. DRS record last changed December 6, 2025.

What it approves

Installation of four Continental IO-520-E engines.

ADs that name this STC · 3

An AD can apply because an STC is installed, or mention one in its text.

AD 97-18-02HistoricalBlades · Hartzell Propeller BHC-A2V, BHC-A2XF-1, BHC-A2XF-3 and 3 moreEffective Sep 11, 1997 · Replaced by AD 97-18-02 R1 · Cited in the text AD 77-14-07HistoricalBlank Shank · Hartzell Propeller EHC-A3VF with STC SA1685WEEffective Jul 14, 1977 · Replaced by AD 97-18-02 · Named in the applicability AD 75-16-22Counterweight Bushings · de Havilland Aircraft Co., Ltd., The D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA and D.H.114 Heron Series 2X with STC SA1685WEEffective Aug 8, 1975 · Named in the applicability

Approved models · 3

Make	Model	Data sheet
The de Havilland Aircraft Co. Ltd (England)	DH 114 Heron; Series 2A	A-816
The de Havilland Aircraft Co. Ltd (England)	DH 114 Heron; Series 2DA	A-816
The de Havilland Aircraft Co. Ltd (England)	DH 114 Heron; Series 2X	A-816