# NTSB Accident SEA03TA116
> **McDonnell Douglas 369E** · 2003-06-25 · Big Timber, MT, USA · MINR
## Event
- **NTSB number:** SEA03TA116
- **Event ID:** 20030701X00979
- **Type:** Accident
- **Date:** 2003-06-25
- **Location:** Big Timber, MT, USA
- **Coordinates:** 45.918609, -109.871109
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** McDonnell Douglas
- **Model:** 369E
- **Registration:** N1502
- **FAR Part:** PUBU
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Fretting on the outside diameter of the compressor coupling adapter which resulted in fatigue and subsequent fracture of the adapter, and ultimately the disconnection of the compressor from the turbine assembly.  Contributing factors were low rotor RPM, uneven terrain and collapse of the right skid on landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA03TA116) · AI Analytics · CC0 1.0*