MIA84LA229

NTSB accident investigation · Mcdonnell Douglas DC-8-51 · Key West, FL · July 24, 1984

Accident · Serious injuriesLimited investigationFinal report
Date
July 24, 1984, 13:35 local (17:35 UTC)
Place
Key West, FL
Injuries
1 serious, 8 minor, 145 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
XAPIKMcdonnell Douglas DC-8-51
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
31175

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

On this page

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
Weather condition - thunderstormFactor
Flight into known adverse weather - continuedPilot in commandFactor
Passenger briefing - inadequatePilot in commandCause
Seat belt sign - continuedPilot in command
Seat belt - improper use ofCause
Weather condition - turbulence(thunderstorms)Factor

Analysis

The captain reported that the seat belt sign was left on for the entire flt from Mexico city to miami. Aprx 50 mi from Key West, the flt began a descent from FL370. While descending thru about 11,500 ft, the acft encountered severe turbulence. At that time, the airspeed was 270 KTS & the acft was passing thru a cumulus cloud. One passenger suffered a serious injury, 4 passengers & 4 flt attendants received minor injuries. The flt crew continued to miami intl arpt & landed without further incident. A wx study revealed a large area of level 2 to level 5 thunderstorms along the route. There was a convective SIGMET for an area of thunderstorms with tops to 45,000 ft. the passengers stated that no previous announcements were made to warn them of possible turbulence, except for the seat belt sign. Injuries occurred when occupants were thrown about the cabin or against loose seat belts.

Aircraft

Registration
XAPIK
Reported as
Mcdonnell Douglas DC-8-51
Category
Airplane
Serial number
45685
Airframe hours
61,922
Engine
P&W JT3D-313, turbo fan
Damage
No damage
Flight
Part 129
Operator
Aeronaves De Mexico (Aomf, doing business as Aero Mexico
Registered owner
Aeronaves De Mexico
Airworthiness certificate
Standard, Transport
Departed
MEX · Mexico City
Destination
MIA · Miami, FL
Flight plan
IFR
Airport
Unknown

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Unknown, Unknown
Seat
Left
Flight hours
14,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 17 knots
Visibility
7 statute miles
Lowest ceiling
1,500 ft broken
Temperature
75 °F, dew point 70 °F
Observed at
EWY, 20 nm away