# NTSB Incident CHI08IA065
> **Boeing 737-2H4** · 2008-01-08 · Lincoln, NE, USA · NONE
## Event
- **NTSB number:** CHI08IA065
- **Event ID:** 20080122X00088
- **Type:** Incident
- **Date:** 2008-01-08
- **Location:** Lincoln, NE, USA
- **Coordinates:** 40.851387, -96.765274
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 38
- **Total aboard:** 38
## Aircraft
- **Make:** Boeing
- **Model:** 737-2H4
- **Registration:** N733TW
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

The improper installation of the swivel valve fittings by the operator's mechanic leading to the total loss of both hydraulic systems.  Contributing to the incident were the swivel valves leaking and the total failure of the hydraulic system.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI08IA065) · AI Analytics · CC0 1.0*