# NTSB Accident GAA17CA146
> **KAMAN AEROSPACE CORP K 1200** · 2017-03-13 · Julian, CA, USA · NONE
## Event
- **NTSB number:** GAA17CA146
- **Event ID:** 20170221X45637
- **Type:** Accident
- **Date:** 2017-03-13
- **Location:** Julian, CA, USA
- **Coordinates:** 33.078609, -116.601943
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** KAMAN AEROSPACE CORP
- **Model:** K 1200
- **Registration:** N675TH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to conduct a thru-flight walkaround inspection, which resulted in the engine cowling remaining open and subsequently separating from the helicopter and striking the main rotor blades and vertical stabilizer during departure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=GAA17CA146) · AI Analytics · CC0 1.0*