# Incident 19991128037409I: Boeing 7272J4, Minneapolis, MN, November 28, 1999

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 28, 1999, 21:30 local time
- Place: Minneapolis, MN
- Airport: Minneapolis-St Paul International-Wold
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: SCNA
- Location: 44.9800° N, 93.2638° W: Placed by OpenAirDocs: center of Minneapolis, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.9800&lon=-93.2638&mi=10
- Aircraft: N285SC, a cancelled registration (https://openairdocs.org/deregistered/N285SC-2018-01-17) (OpenAirDocs)
- Registry model: Boeing 727-2J4 (registry code 138400L, https://openairdocs.org/model/boeing-727-2j4) (OpenAirDocs)
- Registry engine: Pratt & Whitney JT8D-17 series (registry code 52049, https://openairdocs.org/engine/pratt-whitney-jt8d-17-series) (OpenAirDocs)
- Reported make and model: BOEING 7272J4
- People aboard: 175
- Fatal injuries: 0
- Pilot flight hours: 10,285 in this make and model, 216 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19991128037409I

## Narrative

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

(-23) ON 11/28/99, SUN COUNTRY AIRLINES OPERATED FLIGHT 408, A B-727 FROM MINNEAPOLIS TO DETROIT.  DURING INITIAL CLIMBOUT FROM MSP, AT APPROXIMATELY 25,000 FT. THE FLIGHT ENGINEER INADVERTENTLY CLOSED THE #1 AND #3 ENGINE BLEED VALVES CAUSING THE AIRCRAFT TO DEPRESSURIZE.  CABIN ALTITUDE EXCEEDED 14,000 FT AND OXYGEN MASKS DEPLOYED IN THE CABIN.  AN IMMEDIATE DESCENT WAS INITIATED AND THE AIRCRAFT DESCENDED TO 10,000 FT AT WHICH TIME THE CAPTAIN NOTED THAT THE BLEED VALVES FOR ENGINE #1 AND #3 WERE CLOSED.  THE BLEED VALVES WERE OPENED AND THE AIRCRAFT BEGAN TO PRESSURIZE NORMALLY.  THE FLIGHT WAS CLIMBED TO 23,000 FT AND THE REMAINDER OF THE FLIGHT WAS CONDUCTED WITHOUT INCIDENT.

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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