# NTSB Incident FTW98IA019
> **Boeing 757-222** · 1997-10-16 · SEATTLE, WA, USA · NONE
## Event
- **NTSB number:** FTW98IA019
- **Event ID:** 20001208X08998
- **Type:** Incident
- **Date:** 1997-10-16
- **Location:** SEATTLE, WA, USA
- **Coordinates:** 47.440917, -122.310592
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 196
- **Total aboard:** 196
## Aircraft
- **Make:** Boeing
- **Model:** 757-222
- **Registration:** N581UA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Maintenance personnel's failure to properly secure the left off-wing slide door after routine slide replacement, allowing an inflight separation of the slide.  Factors were inadequate training of maintenance personnel and inadequate written instructions by the airplane manufacturer.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW98IA019) · AI Analytics · CC0 1.0*