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| Date: | Friday 20 June 2025 |
| Time: | 17:26 UTC |
| Type: |  Cessna 525B CitationJet CJ3+ |
| Owner/operator: | AirSprint |
| Registration: | C-FSQX |
| MSN: | 525B0556 |
| Year of manufacture: | 2018 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Location: | 80 nm E of Houston, TX -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Miami-Opa locka Executive Airport, FL (OPF/KOPF) |
| Midland International Air and Space Port, TX (MAF/KMAF) | |
| Investigating agency: | TSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
AirSprint flight ASP556, a Cessna 525B, was en route at FL450, when the crew reported hearing a pressurization related sound coming from the door area. They initiated a normal descent and observed that the cabin pressure was normal. Shortly after, the sound became louder and the cabin altitude began to climb. Approximately 80 NM east of George Bush Intercontinental Airport (KIAH), TX, at FL430, the AirSprint operations centre received an automated alert notification from the aircraft of Cabin Altitude.
The aircraft initiated an emergency descent with oxygen masks on and diverted to KIAH. The passenger masks deployed automatically.
Sources:
TSB A25F0235
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Jul-2025 12:57 | ASN | Added |
| 06-Jul-2025 13:01 | ASN | Updated [Aircraft type, Operator, Location, Country, Phase, Nature, Damage, Narrative, ] |
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