# NTSB Accident CEN09CA516
> **GRUMMAN ACFT ENG COR-SCHWEIZER G-164A** · 2009-08-10 · Harlan, IA, USA · NONE
## Event
- **NTSB number:** CEN09CA516
- **Event ID:** 20090811X65603
- **Type:** Accident
- **Date:** 2009-08-10
- **Location:** Harlan, IA, USA
- **Coordinates:** 41.584999, -95.343887
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** GRUMMAN ACFT ENG COR-SCHWEIZER
- **Model:** G-164A
- **Registration:** N4598
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to perform accurate weight and balance calculations which resulted in exceeding the maximum takeoff weight and the airplane's climb capability.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN09CA516) · AI Analytics · CC0 1.0*