# Accident 19960625046059A: Swrngn SA227AC, Grand Forks, ND, June 25, 1996

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 25, 1996, 14:30 local time
- Place: Grand Forks, ND
- Airport: Grand Forks-Mark Andrews International
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: MALA
- Location: 47.9105° N, 97.0692° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=47.9105&lon=-97.0692&mi=10
- Aircraft: N2692P, a cancelled registration (https://openairdocs.org/deregistered/N2692P-1999-05-11) (OpenAirDocs)
- Registry model: Fairchild SA227-AC (registry code 3377509, https://openairdocs.org/model/fairchild-sa227-ac) (OpenAirDocs)
- Reported make and model: SWRNGN SA227AC
- Reported engine: GARRTT TPE331*
- People aboard: 19
- Fatal injuries: 0
- Pilot flight hours: 4,074 total, 2,727 in this make and model, 229 in the last 90 days
- NTSB investigation: [NTSB CHI96FA216](https://openairdocs.org/ntsb/CHI96FA216) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19960625046059A

## Narrative

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

(.4)THE CAPTAIN REPORTED THAT THE AIRPLANE WAS AT 5,000 FEET MEAN SEA LEVEL, THE PROPELLER RPM WAS 100 PERCENT, AND OTHER ENGINE INDICATIONS WERE NORMAL. A LOSS OF POWER ON THE NUMBER TWO ENGINE WAS 'SUDDEN AND IMMEDIATE.'  THE FLIGHTCREW DECLARED AN EMERGENCY AND RECOVERED VISUALLY TO GRAND FORKS WITHOUT FURTHER INCIDENT.  EXAMINATION OF THE AIRPLANE REVEALED ELEVEN IMPACT MARKS TO THE RIGHT SIDE OF THE FUSELAGE.  TWO OF THE IMPACTS PENETRATED THE FUSELAGE SIDE. EXAMINATION OF THE ENGINE REVEALED EVIDENCE OF OVERLOAD FAILURE AND PENETRATION OF THE GEAR BOX.  FATIGUE FRACTURES IN THE SECOND STAGE COMPRESSOR IMPELLER RIM EMANATED FROM A HEAT AFFECTED, RUBBED AREA ON THE IMPELLER BLADES.  A CORRESPONDING RUBBED AREA WAS EVIDENT ON THE IMPELLER SHROUD, AND ALUMINUM MATERIAL WAS FUSED TO THE TITANIUM IMPELLER.  NO EVIDENCE OF MATERIAL DEFECTS WERE NOTED.                                     (-23) PILOT STATED THAT DURING CLIMB AFTER DEPARTING GRAND FORK AIRPORT, ND THE RIGHT ENGINE EXPERIENCED AN UNCONTAINED FAILURE. PIECES OF THE REAR REDUCTION SECTION PUNCTURED THE AIRCRAFT FUSELAGE. THE AIRCRAFT RETURNED TO GRAND FORKS AIRPORT, ND WITH NO FURTHER INCIDENT. THERE WERE NO INJURIES. TH E PILOT INFORMATION WAS NOT AVAILABLE AT THE TIME THIS FORM WAS COMPLETED. AN AMENDED FORM WILL BE FORWARDED WHEN THE INFORMATION IS RECEIVED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI96FA216](https://openairdocs.org/ntsb/CHI96FA216), Jun 25, 1996: Fairchild SA227AC (N2692P), Grand Forks, ND, substantial damage. Probable cause: insufficient clearance between the second stage compressor impeller and the shroud. A factor was the subsequent fatigue failure of the impeller.

## Other reports on N2692P (2)

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

- [Incident 19891031056129I](https://openairdocs.org/incident/19891031056129I), Oct 31, 1989: Swrngn SA227AC (N2692P), St Louis, MO, Minor damage. Left engine oil pressure dropped. Secured and returned. Nts tube leaking and flare cracked.
- [Incident 19870625035909I](https://openairdocs.org/incident/19870625035909I), Jun 25, 1987: Swrngn SA227AC (N2692P), Joplin, MO, Minor damage. Returned to airport with a vibration. Aft baggage door had separated.

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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