# NTSB Accident IAD99FA052
> **Boeing 737-824** · 1999-07-08 · ATLANTIC OCEAN, AO · SERS
## Event
- **NTSB number:** IAD99FA052
- **Event ID:** 20001212X19286
- **Type:** Accident
- **Date:** 1999-07-08
- **Location:** ATLANTIC OCEAN, AO
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 71
- **Uninjured:** 89
- **Total aboard:** 161
## Aircraft
- **Make:** Boeing
- **Model:** 737-824
- **Registration:** N12221
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the aircrew's inadvertent encounter with unforecast clear air turbulence.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD99FA052) · AI Analytics · CC0 1.0*