# Incident 20040528008669I: Cessna S550, Pittsburgh, PA, May 28, 2004

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 28, 2004, 12:35 local time
- Place: Pittsburgh, PA
- Airport: Greater Pittsburgh International
- Phase of flight: Normal Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: K4DA
- Location: 40.4406° N, 79.9959° W: Placed by OpenAirDocs: center of Pittsburgh, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4406&lon=-79.9959&mi=10
- Aircraft: N790AL, registered now (https://openairdocs.org/aircraft/N790AL) (OpenAirDocs)
- Registry model: Cessna S550 (registry code 2076607, https://openairdocs.org/model/cessna-s550) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada JT15D-4 series (registry code 52112, https://openairdocs.org/engine/pratt-whitney-canada-jt15d-4-series) (OpenAirDocs)
- Reported make and model: CESSNA S550
- People aboard: 4
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040528008669I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) TELEPHONE INTERVIEW WITH THE PILOT MR. ANDREW E. LANDDECK ATP 2702210, STATED THE AIRCRAFT WAS CRUISING AT 31,000 FEET WHEN THE CREW HEARD THE CABIN DOOR SEAL START TO LEAK, FOLLOWED BY THE CABIN RATE CLIMBING AT 1000 FPM, AND REQUESTED DESCENT, PASSING 26,000 FEET THE CABIN RATE WHEN TO 4000 FPM, THEN A CABIN ALTITUDE LIGHT ILLUMINATED AND THE OXYGEN MASKS DROPPED. AN EMERGENCY WAS DECLARED AND THEY DIVERTED TO KPIT. N790AL LANDED AT 1235 EDT WITHOUT FURTHER PROBLEMS. N790AL WAS MOVED IN ACCORDANCE WITH THE MEL TO ICT WHERE THE DOOR SEAL REGULATOR WAS REPLACED AND DOOR SEAL PLUMBING LEAKS WERE CORRECTED.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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