# NTSB Incident CHI89IA084
> **FOKKER F-27 MK500** · 1989-05-04 · MOLINE, IL, USA · NONE
## Event
- **NTSB number:** CHI89IA084
- **Event ID:** 20001213X28264
- **Type:** Incident
- **Date:** 1989-05-04
- **Location:** MOLINE, IL, USA
- **Coordinates:** 41.480182, -90.480628
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** FOKKER
- **Model:** F-27 MK500
- **Registration:** N511AW
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** NBRT
- **Weather:** VMC
## Probable cause

MATERIAL FAILURE OF THE LANDING GEAR RETRACTION AND EXTENSION ASSEMBLY. INADEQUATE MAINTENANCE AND TROUBLESHOOTING PROCEDURES IN COMPANY DIRECTIVES WERE FACTORS IN THIS INCIDENT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI89IA084) · AI Analytics · CC0 1.0*