# Incident 19790211006539I: Bac 111204AF, Pittsburgh, PA, February 11, 1979

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: February 11, 1979, 10:35 local time
- Place: Pittsburgh, PA
- Airport: Greater International
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: USA
- 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: N1122J, a cancelled registration (https://openairdocs.org/deregistered/N1122J-2013-01-30) (OpenAirDocs)
- Registry model: British BAC 1-11 204/AF (registry code 1480210, https://openairdocs.org/model/british-bac-1-11-204-af) (OpenAirDocs)
- Registry engine: Rolls-Royce SPEY-506-14 (registry code 54519, https://openairdocs.org/engine/rolls-royce-spey-506-14) (OpenAirDocs)
- Reported make and model: BAC 111204AF
- People aboard: 40
- Fatal injuries: 0
- Pilot flight hours: 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19790211006539I

## Narrative

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

INABILITY TO PRESSURIZE AFTER TAKEOFF.  MASTER CONTROL VALVE STUCK IN OPEN POSITION.

## Other reports on N1122J (3)

Matched to the same aircraft by N-number and date.

- [Incident 19870806054639I](https://openairdocs.org/incident/19870806054639I), Aug 6, 1987: Bac 111204AF (N1122J), Middletown, PA. The fuel system on the left engine indicated a fluctuating condition on takeoff. Replaced filters and pumps.
- [Incident 19870113009909I](https://openairdocs.org/incident/19870113009909I), Jan 13, 1987: Bac 111204AF (N1122J), Ithaca, NY. As the aircraft turned on the taxiway, the left main tire departed the paved surface. Aircraft became stuck.
- [Incident 19810601035079I](https://openairdocs.org/incident/19810601035079I), Jun 1, 1981: Bac 111204AF (N1122J), Pittsburgh, PA. Nr 2 engine shut down in flight. Maintenance replaced seals in compressor section.

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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