# NTSB Accident DCA96MA068
> **McDonnell Douglas MD-88** · 1996-07-06 · PENSACOLA, FL, USA · FATL
## Event
- **NTSB number:** DCA96MA068
- **Event ID:** 20001208X06203
- **Type:** Accident
- **Date:** 1996-07-06
- **Location:** PENSACOLA, FL, USA
- **Coordinates:** 30.470479, -87.190536
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 2
- **Minor:** 3
- **Uninjured:** 137
- **Total aboard:** 144
## Aircraft
- **Make:** McDonnell Douglas
- **Model:** MD-88
- **Registration:** N927DA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the fracture of the left engine's front compressor fan hub, which resulted from the failure of Delta Air Lines' fluorescent penetrant inspection process to detect a detectable fatigue crack initiating from an area of altered microstructure that was created during the drilling process by Volvo for Pratt & Whitney and that went undetected at the time of manufacture. Contributing to the accident was the lack of sufficient redundancy in the in-service inspection program. (NTSB Report AAR-98/01)

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA96MA068) · MORVS · CC0 1.0*