# NTSB Incident FTW92IA184
> **BOEING 737-222** · 1992-07-15 · OKLAHOMA CITY, OK, USA · NONE
## Event
- **NTSB number:** FTW92IA184
- **Event ID:** 20001211X15150
- **Type:** Incident
- **Date:** 1992-07-15
- **Location:** OKLAHOMA CITY, OK, USA
- **Coordinates:** 35.420227, -97.390312
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 88
- **Total aboard:** 88
## Aircraft
- **Make:** BOEING
- **Model:** 737-222
- **Registration:** N12235
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

HYDRAULIC FLUID EXHAUSTION DUE TO THE CHAFED 'A' SYSTEM HYDRAULIC LINE AND THE IMPROPER INSTALLATION BY UNKNOWN MAINTENANCE PERSONNEL OF THE 'B' SYSTEM LINE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW92IA184) · AI Analytics · CC0 1.0*