# Incident 19990212012999I: Bag BAE146200A, Denver, CO, February 12, 1999

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: February 12, 1999, 18:50 local time
- Place: Denver, CO
- Airport: Denver International
- Damage: Minor damage
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: AGWA
- Location: 39.1900° N, 106.8198° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.1900&lon=-106.8198&mi=10
- Aircraft: N608AW (not matched to a registry record)
- Reported make and model: BAG BAE146200A
- Reported engine: LYC ALF502R5
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 21,500 total, 4,687 in this make and model, 216 in the last 90 days
- NTSB investigation: [NTSB DEN99IA038](https://openairdocs.org/ntsb/DEN99IA038) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990212012999I

## Narrative

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

PILOT REPORTED THAT WHILE IN A CLIMB TO CRUISE AFTER DEPARTING FROM ASPEN, CO. THE CREW HEARD A LOUD NOISE AND A STRONG VIBRATION FROM THE #4 ENGINE. HE DISCHARGED THE FIRE BOTTLES AND SECURED THE ENGINE. POST INCIDENT EVALAUTION REVEALED THAT THE #4 TURBINE WHEEL ON #4 ENGINE HAD SHED ALL IT'S BLADES. THERE WERE EIGHT PENETRATIONS OF THE TAILCONE COWLING AND ONE PENETRATION ON THE BOTTOM OF THE RIGHT WING, JUST AFT OF THE LEADING EDGE.

## 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 DEN99IA038](https://openairdocs.org/ntsb/DEN99IA038), Feb 12, 1999: British Aerospace BAE 146-200A (N608AW), Aspen, CO, incident, minor damage. Probable cause: The inadequate maintenance overhaul of the number four turbine disc by the manufacturer. A factor was the turbine blade's failure due to high cycle fatigue fracture.

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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