# NTSB MIA93LA090: de Havilland DHC-8-102, N928HA, Jacksonville, FL, March 23, 1993

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: March 23, 1993, 18:52 local (23:52 UTC)
- Place: Jacksonville, FL
- Location: 30.3322° N, 81.6557° W: Placed by OpenAirDocs: center of Jacksonville, FL, within about 15 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.3322&lon=-81.6557&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 21 uninjured
- Status: Completed, report February 28, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 33245
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA93LA090
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33245/pdf
- Page: https://openairdocs.org/ntsb/MIA93LA090

## Probable cause

THE OPERATOR'S LACK OF ADEQUATE INSTRUCTIONS TO CREWMEMBERS AS TO WHEN FLIGHT ATTENDANTS CAN RESUME CABIN DUTIES AFTER BEING TOLD TO BE SEATED BY THE CAPTAIN.

## Sequence of events

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

- In flight encounter with weather, descent - normal
  - procedures/directives - inadequate, company/operator management (cause)
  - weather condition - turbulence(thunderstorms) (contributing factor)
  - seat belt - not used, flight attendant (contributing factor)

## Analysis

38 MI FROM THE DESTINATION ARPT, THE CAPT NOTIFIED THE F/A TO BE SEATED DUE TO POSSIBLE TURBULENCE ENCOUNTER. AFTER COMPLETING THE APPROACH CHECKLIST, THE F/A WAS GIVEN THE SIGNAL TO PERFORM THE FINAL CABIN CHECK. 9 MI FROM THE ARPT, THE FLIGHT ENCOUNTERED 'A SINGLE STRONG WINDSHEAR' WHICH CAUSED THE F/A TO BE THROWN AGAINST THE CEILING & THEN TO THE FLOOR. AT THE TIME OF THE OCCURENCE, THE AIRPLANE WAS OPERATING WITHIN A WEAK LEVEL I WX RADAR RETURN, WITHIN 6 MI OF A LEVEL II RETURN, AND WITHIN 9 MI OF A VERY STRONG LEVEL IV RETURN. THE OPERATOR'S FLT OPS MANUAL STATES THAT THE CAPT WILL ADVISE THE F/A AS TO WHETHER OR NOT HE/SHE SHOULD BE SEATED WITH THE SEAT BELT FASTENED. IN ADDITION, NEITHER THE FLT OPS MANUAL NOR THE F/A MANUAL GAVE ANY INSTRUCTIONS AS TO WHEN THE F/A SHOULD RESUME HIS/HER DUTIES AFTER BEING TOLD TO BE SEATED, NOR WAS THE CAPT INSTRUCTED TO NOTIFY THE F/A TO RESUME HIS/HER DUTIES.

## Aircraft

- Registration: [N928HA](https://openairdocs.org/deregistered/N928HA-2003-06-02), registration cancelled 2003-06-02, S/N 120 (OpenAirDocs)
- Reported make and model: de Havilland DHC-8-102
- Registry model: [Boeing DHC-8-102](https://openairdocs.org/model/boeing-dhc-8-102) (registry code 1386002) (OpenAirDocs)
- Registry engine: [Pratt & Whitney Canada PW120](https://openairdocs.org/engine/pratt-whitney-canada-pw120) (registry code 52114, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: DHC-8-102
- Airframe hours: 12081
- Engines: P&W 120A 2000 horsepower turbo prop
- Damage: No damage
- Flight: Part 121
- Operator: Henson Aviation, Inc., doing business as Usair Express
- Registered owner: Westinghouse Credit Corp
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, March 21, 1993, 18 hours before
- Departed: TPA, TAMPA, FL
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; airline transport; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 9,065 total, 2,650 in this make and model, 6,681 as pilot in command, 171 in the last 90 days, 104 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 160° at 15 knots
- Visibility: 7 statute miles
- Lowest ceiling: 3,000 ft broken
- Temperature: 70 °F, dew point 63 °F
- Altimeter: 30.00 inHg
- Observed at: JAX, 10 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19930323006759A](https://openairdocs.org/incident/19930323006759A), Mar 23, 1993: Dhav DHC8102, Jacksonville, FL. Encountered cat on descent to airport. Flight attendant received broken ankle. Was wearing high heel shoes.

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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