# STCs that may be installed: Dehavilland DH114 HERON 2A

A list on [Dehavilland DH114 HERON 2A](https://openairdocs.org/model/dehavilland-dh114-heron-2a.md).

In force first, then newest. The registry doesn’t record which STCs an aircraft has.

- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202.md): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P · Electronics International Inc.
- [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201.md): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C · Electronics International Inc.
- [STC SA01988SE](https://openairdocs.org/stc/SA01988SE.md): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. · Electronics International Inc.
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE.md): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. · Electronics International
- [STC SA249SW](https://openairdocs.org/stc/SA249SW.md): Installation of airstair door. · Signature Flight Support Corporation
- [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201.md): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series) · Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM.md): Installation of Electronics Int'l digital automatic engine analyzer. · Electronics International
- [STC SA1138SO](https://openairdocs.org/stc/SA1138SO.md): Installation of Bendix RDR 160B NM-Lather radar system. · Puerto Rico Intl Airlines, Inc
- [STC ST965SO](https://openairdocs.org/stc/ST965SO.md): Modification of cockpit direct vision window. · Puerto Rico Intl Airlines Inc
- [STC ST957SO](https://openairdocs.org/stc/ST957SO.md): Installation of Teledyne battery Model BB638/T-C replacing two Rebat R-35 batteries. · Puerto Rico Intl Airlines Inc
- [STC SA919SO](https://openairdocs.org/stc/SA919SO.md): Airplane life extension. · Puerto Rico Intl Airlines Inc
- [STC ST758SO](https://openairdocs.org/stc/ST758SO.md): Metal covering of wing flaps. · Puerto Rico Intl Airlines Inc
- [STC SA757SO](https://openairdocs.org/stc/SA757SO.md): Installation of emergency exit RH fuselage at F.S. 49-76, and permanent closure of three existing overhead exits. · Puerto Rico Intl Airlines Inc
- [STC SA1368WE](https://openairdocs.org/stc/SA1368WE.md): Installation of Lycoming IO-540 series engines. · Riley Turbostream Corp
- [STC SA3125WE](https://openairdocs.org/stc/SA3125WE.md): Installation of lower wing skin straps, lower spar doubler straps and engine mount pickup strap doublers. · Winters Aircraft Engr Co
- [STC SA1089SO](https://openairdocs.org/stc/SA1089SO.md): Installation of shoulder harness for crew seats. · Puerto Rico Intl Airlines, Inc
- [STC ST744SO](https://openairdocs.org/stc/ST744SO.md): Installation of smoke detection system for forward and aft holds. · Puerto Rico Intl Airlines Inc
- [STC ST745SO](https://openairdocs.org/stc/ST745SO.md): Installation of windshield wiper for co-pilot's (R.H.) position. · Puerto Rico Intl Airlines Inc
- [STC SA1729WE](https://openairdocs.org/stc/SA1729WE.md): Installation of over wing emergency exits and rear windows. · Puerto Rico Intl Airlines Inc
- [STC SA1685WE](https://openairdocs.org/stc/SA1685WE.md): Installation of four Continental IO-520-E engines. · Puerto Rico Intl Airlines
- [STC SA1545WE](https://openairdocs.org/stc/SA1545WE.md): Installation of cabin interior arrangement, air conditioning equipment, electrically operated air compressors. · Aircraft Technical Service Inc
- [STC SA1710WE](https://openairdocs.org/stc/SA1710WE.md): Installation of stair door. · Aircraft Technical Service Inc
- [STC SA1826WE](https://openairdocs.org/stc/SA1826WE.md): Installation of 22 occupant interior. · Aircraft Technical Service Inc
- [STC SA2067WE](https://openairdocs.org/stc/SA2067WE.md): Installation of Janitrol 8-200 cabin heater. · Riley Turbostream Corp
- [STC SA740EA](https://openairdocs.org/stc/SA740EA.md): Installation substitution of Lycoming engine IO-540-K1C5 in place of Lycoming Model IO-540-G1A4. · Wright Airlines Inc
- [STC SA2-1179](https://openairdocs.org/stc/SA2-1179.md): Installation of McMillan Radome P/N 7191X and relocate pneumatic system · Associated Air Center, Inc. - c/o CT Corporation System

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
  SELECT stc_number, min(matched_model) AS matched_model
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
  WHERE aircraft_model_code IN ('2800502')
  GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/model/dehavilland-dh114-heron-2a/stcs

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