# Incident 19910503022819I: Boeing 72751C, Helena, MT, May 3, 1991

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 3, 1991, 06:28 local time
- Place: Helena, MT
- Airport: Helena Regional Airport
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Air carrier (Part 121)
- Operator: RYNA
- Location: 46.6067° N, 111.9833° W: Placed by OpenAirDocs at HELENA RGNL (HLN), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.6067&lon=-111.9833&mi=10
- Aircraft: N418EX (not matched to a registry record)
- Reported make and model: BOEING 72751C
- Reported engine: PWA JT8*
- People aboard: 3
- Fatal injuries: 0
- Pilot flight hours: 134 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910503022819I

## Narrative

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

LOSS OF OIL QUANTITY AND PRESSURE ON NR1 ENGINE. FOUND FAILED THREADS IN GEAR BOX FOR OIL PRESSURE LINE.

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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