# NTSB Incident IAD97IA018
> **McDonnell Douglas MD-11** · 1996-11-08 · DAYTON, OH, USA · NONE
## Event
- **NTSB number:** IAD97IA018
- **Event ID:** 20001208X07045
- **Type:** Incident
- **Date:** 1996-11-08
- **Location:** DAYTON, OH, USA
- **Coordinates:** 39.8204, -84.049186
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 209
- **Total aboard:** 209
## Aircraft
- **Make:** McDonnell Douglas
- **Model:** MD-11
- **Registration:** N814DE
- **FAR Part:** 121
- **Engines:** 3
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** Unk
## Probable cause

Failure of the output drive unit shear pin due to lack of lubrication to the screw actuator assemblies.  Contributing to the cause was the aircraft manufacturer's production and inspection personnel failing to lubricate the screw assemblies after initial installation and again after washing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD97IA018) · AI Analytics · CC0 1.0*