CHI88IA081

NTSB incident investigation · Boeing 767-200 · Cimarron, NM · March 24, 1988

Incident · Minor injuriesIncident investigationFinal report
Date
March 24, 1988, 10:20 local (16:20 UTC)
Place
Cimarron, NM
Injuries
3 minor, 208 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N308AABoeing 767-200
Weather
Visual (VMC) · Day
Status
Completed · report January 25, 1990
Report
Approved by Office Director
FAA report
19880324021749I
Case key
13990

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

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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 weatherCruise - normal
In-flight weather advisories - issuedAtc personnel(artcc)
Weather condition - turbulence,clear airCause
Flight into known adverse weather - inadvertentPilot in commandFactor
Seat belt sign - discontinuedPilot in commandFactor

Analysis

While in normal cruise flight at FL 370, the flt crew was advised by ARTCC personnel that other aircraft were experiencing occasional severe turbulence at FL 370 along their route of flight. A descent was made to FL 330 to avoid turbulence. Later, as the aircraft was cruising at FL 330 with the seat belt sign off, it encountered 'severe chop with severe turbulence, in clear air.' One flight attendant and two passengers were injured during the turbulence encounter. The aircraft continued to its destination without further incident.

Aircraft

Registration
N308AA
Reported as
Boeing 767-200
Category
Airplane
Serial number
22314
Engine
P&W JT9D-7, 40,550 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Operator
American Airlines
Registered owner
American Airlines
Airworthiness certificate
Standard, Normal; Standard, Transport
Departed
PHX · Phoenix, AZ
Destination
ORD · Chicago, IL
Flight plan
IFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
51
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
17,000 total · 1,331 in this make and model · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 95 knots
Visibility
15 statute miles
Lowest ceiling
None

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.