# Incident 19841112071309I: Nihon YS11, Ontario, CA, November 12, 1984

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 12, 1984, 12:20 local time
- Place: Ontario, CA
- Airport: International
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Air carrier (Part 121)
- Operator: FWAA
- Location: 34.0633° N, 117.6509° W: Placed by OpenAirDocs: center of Ontario, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0633&lon=-117.6509&mi=10
- Aircraft: N109MP, a cancelled registration (https://openairdocs.org/deregistered/N109MP-2014-12-15) (OpenAirDocs)
- Registry model: Nihon YS-11 (registry code 6310406, https://openairdocs.org/model/nihon-ys-11) (OpenAirDocs)
- Registry engine: Rolls-Royce DART-542 series (registry code 54522, https://openairdocs.org/engine/rolls-royce-dart-542-series) (OpenAirDocs)
- Reported make and model: NIHON YS11
- People aboard: 2
- 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/19841112071309I

## Narrative

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

SMOKE IN CABIN.REQUESTED LOWER ALTITUDE. RELEASED PRESSURIZATION TO AIR CABIN. EMERGENCY HYDRAULIC PUMP HAD FAILED.

## Other reports on N109MP (1)

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

- [Incident 19850208007459I](https://openairdocs.org/incident/19850208007459I), Feb 8, 1985: Nihon YS11 (N109MP), Las Vegas, NV, Minor damage. Nose gear extension problem. Safe landing. Gear door and linkage damage from ground power unit at departure point.

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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