STC ST04437AT

Replacement/Upgrade of HT1000 NPR (Nav Processor Unit) and the HT9100 NPR

Current Issued Aircraft Large Airplane Rev 12/18/2018 View PDF on drs.faa.gov ↗

What is an STC?

A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.

Applicable aircraft (10)

A53EU ATR - GIE Avions de Transport Régional · ATR42-200
A53EU ATR - GIE Avions de Transport Régional · ATR42-300
A53EU ATR - GIE Avions de Transport Régional · ATR42-320
A53EU ATR - GIE Avions de Transport Régional · ATR42-500
A53EU ATR - GIE Avions de Transport Régional · ATR72-101
A53EU ATR - GIE Avions de Transport Régional · ATR72-102
A53EU ATR - GIE Avions de Transport Régional · ATR72-201
A53EU ATR - GIE Avions de Transport Régional · ATR72-202
A53EU ATR - GIE Avions de Transport Régional · ATR72-211
A53EU ATR - GIE Avions de Transport Régional · ATR72-212

Certification basis — 14 CFR

Part 21
Part 25
Part 26

Specific sections

Sec. 111
Sec. 113
Sec. 115
Sec. 117
Sec. 119
Sec. 120
§ 21.47
Sec. 25.15
§ 26.11
§ 26.47
§ 21.101
§ 21.115
§ 21.120
§ 25.301
§ 25.303
§ 25.305
§ 25.307
§ 25.561
§ 25.869
§ 25.899
§ 25.1301
§ 25.1307
§ 25.1309
§ 25.1316
§ 25.1317
§ 25.1351
§ 25.1353
§ 25.1431
§ 25.1519
§ 25.1529

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗