# NTSB Accident FTW89FA078
> **MBB BK-117A-4** · 1989-04-09 · HOUSTON, TX, USA · SERS
## Event
- **NTSB number:** FTW89FA078
- **Event ID:** 20001213X28090
- **Type:** Accident
- **Date:** 1989-04-09
- **Location:** HOUSTON, TX, USA
- **Coordinates:** 29.710004, -95.399497
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 3
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** MBB
- **Model:** BK-117A-4
- **Registration:** N120HH
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** Unk
## Probable cause

FAILURE OF THE PILOT TO MAINTAIN CLEARANCE FROM THE OBSTRUCTION (GARAGE).  FACTORS RELATED TO THE ACCIDENT WERE: DARKNESS, ADVERSE WEATHER CONDITIONS, PERSONNEL IN THE AREA OF THE TEMPORARY HELIPORT, LACK OF SECURITY PROVIDED BY HOSPITAL MANAGEMENT, WHICH RESULTED IN A NECESSITY FOR THE PLT TO DIVERT HIS ATTENTION, AND THE PILOT'S LACK OF VISUAL QUES.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW89FA078) · AI Analytics · CC0 1.0*