France 🇫🇷 DGAC Registry

Name	fr-dgac-registry
Country	France
Registration prefix	F-
Data source	https://immat.aviation-civile.gouv.fr/immat/servlet/static/upload/export.csv
Format	CSV (fixed URL)
Run frequency	Weekly (Wednesday, 07:10 UTC)
Depends on Mictronics for ICAO hex	Yes — the DGAC register does not publish ICAO hex (Mode S) addresses; registrations are resolved via RediSearch against Mictronics records (idx:aircraft:mictronics). Must run after the mictronics runner.

How it works

The DGAC (Direction Générale de l'Aviation Civile) export CSV is downloaded from a fixed URL (;-delimited, utf-8-sig encoded) and parsed with csv.DictReader. Rows are grouped by IMMATRICULATION to handle co-ownership — the same registration can appear on multiple rows with different owners; owner names are deduplicated in order, and the first non-blank address across the group is used. ADRESSE_PROPRIETAIRE is a single free-text field parsed into street/city/postal-code/country: known French country names are stripped from the end (multi-word names like PAYS BAS checked before single-word ones), then a 5-digit postal code is located in the remainder to split street/city; if no postal code is found, only the decoded country is kept. Every written record explicitly sets military: false — this register is exclusively civil, and the explicit value ensures a stale military: true flag (from Mictronics or a prior record on a reused hex) is corrected on re-registration. Before writing, a type sanity check compares tokens extracted from the DGAC MODELE string against the existing Mictronics record's type designator and model — if both sides yield tokens and they don't intersect, the record is silently skipped (guards against a reused/reassigned registration mark pointing at the wrong Mictronics record).

Columns

Source column	Imported	Notes
IMMATRICULATION	✅	F-prefix; used as the Mictronics lookup key; groups co-ownership rows
CONSTRUCTEUR	✅	→ aircraft.manufacturer
MODELE	✅	→ aircraft.model; also used for the pre-write type sanity check against Mictronics
NUMERO_SERIE	✅	→ aircraft.serial_number
AERODROME_ATTACHE	❌	Present in source; not read by this runner
PROPRIETAIRE	✅	→ registrant.names[]; deduplicated across co-ownership rows, order preserved
ADRESSE_PROPRIETAIRE	✅	Parsed into registrant.street/city/postal_code/country; country decoded from French name to ISO 3166-1 alpha-2
LOCATAIRE	❌	Present in source; not read by this runner
ADRESSE_LOCATAIRE	❌	Present in source; not read by this runner
CREANCIER_HYPOTHEQUE	❌	Present in source; not read by this runner
ADRESSE_CREANCIER	❌	Present in source; not read by this runner
PERSONNE_SAISISSANTE	❌	Present in source; not read by this runner
ADRESSE_PERSONNE_SAISISSANTE	❌	Present in source; not read by this runner

Other columns present in the DGAC export are not read by this runner.

See specs/data-dictionary.yaml (fr-dgac-registry entry) for full column semantics and cross-source schema notes.

Example Output

Read back the merged record for a given ICAO hex (combines this runner's data with Mictronics and any other sources that have written to the same key):

docker run --rm --network host redis:latest redis-cli EVAL "$(cat ./shared/lua/merge_aircraft.lua)" 0 383433 | python3 -m json.tool --sort-keys --no-ensure-ascii

{
    "aircraft": {
        "manufacturer": "SOCATA",
        "manufacturer_model": "SOCATA Rallye",
        "model": "MS 892 A 150",
        "serial_number": "10557",
        "type_designator": "RALL"
    },
    "data_sources": [
        "mictronics",
        "fr-dgac-registry"
    ],
    "icao_hex": "383433",
    "military": false,
    "registrant": {
        "city": "TOUSSUS-LE-NOBLE",
        "country": "FR",
        "names": [
            "AERO CLUB DE L'OUEST PARISIEN"
        ],
        "postal_code": "78117",
        "street": [
            "AERODROME DE TOUSSUS LE NOBLE BAT. 232"
        ]
    },
    "registration": "F-BNBT"
}

docker run --rm --network host redis:latest redis-cli EVAL "$(cat ./shared/lua/merge_aircraft.lua)" 0 39C429 | python3 -m json.tool --sort-keys --no-ensure-ascii

{
    "aircraft": {
        "manufacturer": "THE BOEING COMPANY",
        "manufacturer_model": "BOEING 787-9 Dreamliner",
        "model": "787-9",
        "serial_number": "42497",
        "type_designator": "B789"
    },
    "data_sources": [
        "mictronics",
        "fr-dgac-registry"
    ],
    "icao_hex": "39C429",
    "military": false,
    "registrant": {
        "country": "JP",
        "names": [
            "VENTOUX LEASING CO. LTD"
        ]
    },
    "registration": "F-HRBJ"
}

Configuration

See Data Runners for the full list of environment variables every runner reads. This runner writes aircraft:registry:{icao_hex} with a fixed 14-day TTL (ENRICHMENT_TTL_SECONDS in shared/timing.py).

MQTT

Published once, at the end of a run, to SkyFollower/runner/fr-dgac-registry/statistic/{name} (all retained):

Topic suffix	Value	Format
records_imported	e.g. 271	Integer as string
last_run_at	e.g. 2026-07-07T14:32:01.123456+00:00	ISO 8601 UTC
last_run_status	Success or Failure	String

Home Assistant autodiscovery configs are also published (retained) to homeassistant/sensor/SkyFollower_runner_fr_dgac_registry_{name}/config for each of the three stats above.