# Incident 20040418007489I: Bolkms BK117B1, St Louis, MO, April 18, 2004

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: April 18, 2004, 21:30 local time
- Place: St Louis, MO
- Airport: Arch Heliport
- Damage: Minor damage
- Phase of flight: Pwr On Vertical Ldng/Rtrcrft
- Operating rules: Air taxi and commuter (Part 135)
- Operator: A1UA
- Location: 38.6184° N, 90.2173° W: Placed by OpenAirDocs at Arch Heliport (MU05), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.6184&lon=-90.2173&mi=10
- Aircraft: N330SL, a cancelled registration (https://openairdocs.org/deregistered/N330SL-2014-06-02) (OpenAirDocs)
- Registry model: Messerschmitt-Bolkow-Blohm BK 117 B-2 (registry code 5626013, https://openairdocs.org/model/messerschmitt-bolkow-blohm-bk-117-b-2) (OpenAirDocs)
- Registry engine: Lycoming LTS-101 series (registry code 41560, https://openairdocs.org/engine/lycoming-lts-101-series) (OpenAirDocs)
- Reported make and model: BOLKMS BK117B1
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 11,000 total, 300 in this make and model, 80 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040418007489I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) PILOT (LASSNER) LANDED SHORT OF THE HELI-PAD (MU05) AND THE TAIL ROTOR STRUCK A CHAIN LINK FENCE. TWO OF THE MAIN ROTOR BLADES STRUCK THE TOP WIRE STRIKE WHICH IS MOUNTED JUST ABOVE THE COCKPIT, THE LANDING GEAR SPREAD OUTWARD DURING GROUND IMPACT. DURING THE INVESTIGATION IT WAS REVEALED THAT THE TAILROTOR DRIVE SHAFT BOLTS SHEARED AT THE ROTOR BRAKE CONNECTION. THE LEFT AND RIGHT SKYLIGHT WINDOWS WERE BROKEN.

## Other reports on N330SL (1)

Matched to the same aircraft by N-number and date.

- [Accident 20111113027979A](https://openairdocs.org/incident/20111113027979A), Nov 13, 2011: Messerschmitt-Bolkow-Blohm BK 117 B-2 (N330SL), Carbondale, IL, Substantial damage. The helicopter landed on the rooftop heliport of the hospital to offload a patient. During coast down of the main and tail rotor system after the engines had…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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