# Incident 20010720017469I: Cessna 550, Williamsport, PA, July 20, 2001

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 20, 2001, 10:27 local time
- Place: Williamsport, PA
- Airport: Williamsport-Lycoming County
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 41.2400° N, 77.0356° W: Placed by OpenAirDocs: center of Williamsport, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.2400&lon=-77.0356&mi=10
- Aircraft: N270CW (not matched to a registry record)
- Reported make and model: CESSNA 550
- People aboard: 4
- Fatal injuries: 0
- Pilot flight hours: 4,700 total, 900 in this make and model, 60 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20010720017469I

## Narrative

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

(-23) TWO HOURS INTO FLIGHT @ 37000' THE CREW HEARD A HISSING SOUND AROUND THE CABIN DOOR. THE CABIN INDICATED A 200'/MIN CLIMB AND THEN WENT TO 6000'/MIN CLIMB. CREW DONNED 02 MASKS AND DEPLOYED THE CABIN MASKS AND DESCENDED TO 10000'.  DECLARED AN EMERGENCY AND LANDED AT WILLIAMSPORT, PA. (IPT).

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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