# NTSB Accident CHI98LA127
> **Boeing 727-227** · 1998-04-20 · CHICAGO, IL, USA · SERS
## Event
- **NTSB number:** CHI98LA127
- **Event ID:** 20001211X09821
- **Type:** Accident
- **Date:** 1998-04-20
- **Location:** CHICAGO, IL, USA
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 2
- **Uninjured:** 153
- **Total aboard:** 156
## Aircraft
- **Make:** Boeing
- **Model:** 727-227
- **Registration:** N722AA
- **FAR Part:** 121
- **Engines:** 3
- **Damage:** MINR
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

the passenger initiated evacuation of the airplane.  A factor was the auxiliary power unit fire.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI98LA127) · AI Analytics · CC0 1.0*