# NTSB Accident CEN16LA310
> **PIPER PA-11** · 2016-08-05 · Indianola, IA, USA · FATL
## Event
- **NTSB number:** CEN16LA310
- **Event ID:** 20160808X23924
- **Type:** Accident
- **Date:** 2016-08-05
- **Location:** Indianola, IA, USA
- **Coordinates:** 41.415279, -93.561386
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** PA-11
- **Registration:** N4707M
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inadequate preflight planning, which resulted in the airplane being operated above its maximum gross weight, degraded its climb performance, and led to an aerodynamic stall during the initial climb.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN16LA310) · AI Analytics · CC0 1.0*