MIA93LA090

NTSB accident investigation · de Havilland DHC-8-102 · Jacksonville, FL · March 23, 1993

Accident · Serious injuriesLimited investigationFinal report
Date
March 23, 1993, 18:52 local (23:52 UTC)
Place
Jacksonville, FL
Injuries
1 serious, 21 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N928HAde Havilland DHC-8-102
Weather
Visual (VMC) · Night/dark
Status
Completed · report February 28, 1994
Report
Approved by Office Director
FAA report
19930323006759A
Case key
33245

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherDescent - normal
Procedures/directives - inadequateCompany/operator managementCause
Weather condition - turbulence(thunderstorms)Factor
Seat belt - not usedFlight attendantFactor

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
Reported as
de Havilland DHC-8-102
Category
Airplane
Serial number
DHC-8-102
Airframe hours
12,081
Engine
P&W 120A, 2,000 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

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificate
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.