# Incident 19911221060589I: Cessna 421C, Billings, MT, December 21, 1991

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 21, 1991, 07:47 local time
- Place: Billings, MT
- Airport: Billings Logan International
- Phase of flight: Forced/Precautionary Landing
- Operating rules: Air taxi and commuter (Part 135)
- Operator: MYHA
- Location: 45.8078° N, 108.5435° W: Placed by OpenAirDocs at BILLINGS LOGAN INTL (BIL), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.8078&lon=-108.5435&mi=10
- Aircraft: N421RA, registered now (https://openairdocs.org/aircraft/N421RA) (OpenAirDocs)
- Registry model: Cessna 421C (registry code 2076016, https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Registry engine: Continental GTSI0-520-F-K (registry code 17031, https://openairdocs.org/engine/continental-gtsi0-520-f-k) (OpenAirDocs)
- Reported make and model: CESSNA 421C
- Reported engine: CONT GTSIO520L
- People aboard: 3
- Fatal injuries: 0
- Pilot flight hours: 28,000 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19911221060589I

## Narrative

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

LOST NR2 ENGINE OIL PRESSURE. RETURNED TO BILLINGS. FOUND HYDRAULIC PUMP IDLER GEAR SHAFT HAD FAILED.

## Other reports on N421RA (1)

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

- [Incident 19830428070549I](https://openairdocs.org/incident/19830428070549I), Apr 28, 1983: Cessna 421C (N421RA), Houston, TX, Minor damage. Nose gear collapsed on rollout. Found nose gear actuator rod end broken.

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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