# NTSB Accident DCA16FA217
> **BOEING 737-700** · 2016-08-27 · Pensacola, FL, USA · NONE
## Event
- **NTSB number:** DCA16FA217
- **Event ID:** 20160827X31134
- **Type:** Accident
- **Date:** 2016-08-27
- **Location:** Pensacola, FL, USA
- **Coordinates:** 30.473333, -87.186668
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 104
- **Total aboard:** 104
## Aircraft
- **Make:** BOEING
- **Model:** 737-700
- **Registration:** N766SW
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A low-cycle fatigue crack in the dovetail of fan blade No. 23, which resulted in the fan blade separating in flight and impacting the fan case. This impact caused the fan blade to fracture into fragments that traveled farther than expected into the inlet, which compromised the structural integrity of the inlet and led to the in-flight separation of inlet components. A portion of the inlet struck the fuselage and created a hole, causing the cabin to depressurize.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA16FA217) · AI Analytics · CC0 1.0*