# Accident 20180808010609A: Hughes 369D, Honolulu, HI, August 8, 2018

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 8, 2018, 09:20 local time
- Place: Honolulu, HI
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air taxi and commuter (Part 135)
- Operator: MKHA
- Location: 21.2731° N, 157.7061° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=21.2731&lon=-157.7061&mi=10
- Aircraft: N369MH, registered now (https://openairdocs.org/aircraft/N369MH) (OpenAirDocs)
- Registry model: Hughes Helicopters HUGHES 369D (registry code 4470706, https://openairdocs.org/model/hughes-helicopters-hughes-369d) (OpenAirDocs)
- Registry engine: Rolls-Royce 250-C20B (registry code 54385, https://openairdocs.org/engine/rolls-royce-250-c20b) (OpenAirDocs)
- Reported make and model: HUGHES 369D
- Reported engine: ROLLS-ROYC 250-C20B
- People aboard: 4
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 1,740 in this make and model
- NTSB investigation: [NTSB WPR18LA221](https://openairdocs.org/ntsb/WPR18LA221) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20180808010609A

## Narrative

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

ON AUGUST 8, 2018, ABOUT 0920 HAWAII‐ALEUTIAN STANDARD TIME, A HUGHES 369D HELICOPTER, N369MH, EXPERIENCED A SIGNIFICANT INFLIGHT VIBRATION EVENT, WHICH RESULTED IN THE PILOT EXECUTING AN EMERGENCYLANDING TO A SCHOOL FIELD IN HONOLULU, HAWAII. THE COMMERCIAL PILOT AND HIS 3 PASSENGERS WERE NOT

INJURED. THE HELICOPTER WAS SUBSTANTIALLY DAMAGED. THE HELICOPTER WAS REGISTERED TO SCHUMAN CARRIAGE

COMPANY LTD, AND OPERATED AS A TITLE 14 CODE OF FEDERAL REGULATIONS PART 136 AIR TOUR FLIGHT, DOING BUSINESS AS MAGNUM HELICOPTERS. VISUAL METEOROLOGICAL CONDITIONS PREVAILED FOR THE FLIGHT. THE FLIGHT ORIGINATED FROM THE OPERATOR'S FACILITY AT HONOLULU INTERNATIONAL AIRPORT (HNL), HONOLULU, HAWAII

ABOUT 0909.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR18LA221](https://openairdocs.org/ntsb/WPR18LA221), Aug 8, 2018: Hughes 369 (N369MH), Honolulu, HI, substantial damage. Probable cause: The operator's improper installation of the tail rotor (TR) teeter bearings, which resulted in cascading in-flight failures of the TR components and attach hardware.

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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