LAX89IA315

NTSB incident investigation · Boeing 727-224 · Los Angeles, CA · August 10, 1989

Incident · No injuriesIncident investigationFinal report
Date
August 10, 1989, 12:00 local (19:00 UTC)
Place
Los Angeles, CA
Injuries
148 uninjured
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N88709Boeing 727-224
Weather
Visual (VMC) · Day
Status
Completed · report August 26, 1992
Report
Approved by Office Director
FAA report
19890810046269I
Case key
26260

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

On this page

Probable cause

A fatigue crack in the right gear wheel well.

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.

Airframe/component/system failure/malfunctionCruise - normal
Fuselage - crackedCause
Fuselage - fatigueCause

Analysis

The crew of Continental flight 1223, a Boeing 727, noted a severe floor vibration between passenger rows 21 and 26 while at FL310 at a cruise speed of 0.8 mach. The crew slowed the aircraft to 280 KTS IAS, descended to FL240 and proceeded to Los Angeles without further difficulty. A 15 1/2 inch continuous crack was found along a row of rivets at the floor line in the right wheel well. The crack was in close proximity to two previous repairs. The cracks appreared to be from fatigue. The repair of the panel involoved installation of a double plate over the region.

Aircraft

Registration
N88709
Reported as
Boeing 727-224
Category
Airplane
Serial number
19800
Airframe hours
64,986
Engine
P&W JT8D, 15,500 horsepower, turbo fan
Damage
Minor damage
Flight
Part 121
Operator
Continental Airlines
Registered owner
Continental Airlines Inc
Airworthiness certificate
Standard, Transport; Standard, Normal
Last inspection
Continuous airworthiness · August 3, 1989
Departed
SAT · San Antonio, TX
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
51
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
19,000 total · 9,600 in this make and model

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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

Other investigations on N88709 · 2

Matched to the same aircraft by N-number and date.