ADS-B glitchesDe Havilland Canada Dash 8-400
Why did Dash 8-400 C-GKXM report an altitude of 37,000 feet?
The reading exceeds the site's 32,000-foot limit for the listed type. Wrong type metadata or corrupted data could explain it.
A pressure-altitude report of 37,000 feet raised a question about the aircraft database's identification of C-GKXM as a Dash 8-400. Recorded on October 6, 2026, the altitude exceeded the site's detection limit for that type. The aircraft also transmitted the callsign POE642.
The Series 400 developed from earlier Dash 8 turboprops, with new engines, a modernized cockpit and aerodynamic improvements. Those type details do not resolve this reading. Wrong type metadata or corrupted data could account for the mismatch; the report alone cannot establish the aircraft's actual performance.
About the De Havilland Canada Dash 8-400
- The Dash 8 Series 400 is a turboprop aircraft developed from the Dash 8 Series 100, 200 and 300.
- Compared with earlier Dash 8 models, the Series 400 introduced new engines, a modernized cockpit and aerodynamic improvements.
Recorded data for C-GKXM
| Observed | to |
|---|---|
| Event type | Data quality |
| Recorded source | ADS-B, ICAO address |
| Post date | |
| Last revised |
| Aircraft type | DE HAVILLAND DHC-8-400 Dash 8 |
|---|---|
| Type designator | DH8D |
| Tail number (registration) | C-GKXM |
| Callsign | POE642 |
| ICAO address | C06173 |
Measurements
Displayed measurements may be rounded.
| Ground speed | 490.9 kn |
|---|---|
| Pressure altitude | 37,000 ft |
| Geometric altitude | 37,800 ft |
| Pressure-altitude vertical rate | -64 ft/min |
| Navigation integrity category | 8 category |
| Navigation accuracy category | 10 category |
| Transponder code | 4140 |
Record details
Public event ID: abde7ca8-b3d2-4c.
Record revision: 2.
Evidence version: bf0972b451b65544.