# NTSB CHI02CA296: Robinson R-22, N8372B, Maryland Height, MO, September 10, 2002

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: September 10, 2002, 10:30 local (15:30 UTC)
- Place: Maryland Height, MO
- Coordinates: 38.7275, -90.508331
- Nearby events: https://openairdocs.org/map.md?lat=38.7275&lon=-90.5083&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 30, 2003
- Report: Approved by Office Director
- NTSB case key (mKey): 55921
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI02CA296
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55921/pdf
- Page: https://openairdocs.org/ntsb/CHI02CA296

## Probable cause

Dynamic rollover due to the flight instructor's improper control inputs and the flight instructor's unsuccessful remedial actions.  A contributing factor is the passenger's inadvertent movement of the cyclic control.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Roll over, hover
  - cyclic - inadvertent activation, passenger (cause)
  - dynamic rollover - inadvertent, pilot in command(cfi) (cause)
  - aircraft control - not maintained, pilot in command(cfi) (cause)
  - remedial action - not successful, pilot in command(cfi) (cause)

## Analysis

The helicopter impacted the terrain while hovering and rolled over.  The certified flight instructor reported that he was giving an introductory hovering demonstration lesson.  He reported, "Helicopter caught a gust.  Passenger accidentally pushed the cyclic to left.  Instructor pilot was surprised and tried to grab the cyclic back.  It was to late, left skid touched the ground and the helicopter had a dynamic rollover."

## Factual narrative

On September 10, 2002, at 1030 central daylight time, a Robinson R-22, N8372B, operated by Pujji Inc., sustained substantial damaged at the Creve Coeur Airport (1H0), Maryland Heights, Missouri, when it impacted the terrain while hovering and rolled over.  The certified flight instructor and student pilot were not injured.  The 14 CFR Part 91 instructional flight departed 1H0 at 0930 on a local flight.  Visual meteorological conditions prevailed.  No flight plan was filed.

The certified flight instructor reported that he was giving an introductory hovering demonstration lesson.  He reported, "Helicopter caught a gust.  Passenger accidentally pushed the cyclic to left.  Instructor pilot was surprised and tried to grab the cyclic back.  It was to late, left skid touched the ground and the helicopter had a dynamic rollover."

## Aircraft

- Registration: [N8372B](https://openairdocs.org/deregistered/N8372B-2013-06-07), registration cancelled 2013-06-07, S/N 0330, built 1982 (OpenAirDocs)
- Reported make and model: Robinson R-22
- Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Serial number: 330
- Engines: Lycoming O-320 reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Pujji Inc.
- Airworthiness certificate: Standard, Normal
- Departed: 1H0, Maryland Height, MO
- Airport: 1H0, Creve Coeur Airport, runway 25

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Flight instructor; age 43; airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2; flight hours: 4,210 total, 816 in this make and model
- Student pilot

## Weather

- Conditions: Visual (VMC), Day

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.

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