BFO85IA050

NTSB incident investigation · Douglas DC-10-30F · Chantilly, VA · June 2, 1985

Incident · No injuriesIncident investigationFinal report
Date
June 2, 1985, 17:43 local (21:43 UTC)
Place
Chantilly, VA
Injuries
201 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N106WADouglas DC-10-30F
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
11151

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.

Airframe/component/system failure/malfunctionCruise - normal
Flt control syst,aileron control - looseCause
Maintenance,lubrication - not performedCompany maintenance personnelCause
Maintenance,aaip/progressive program - inadequateFaa(principal maintenance inspector)Cause

Analysis

After climbing up to and leveling off at 37,000 feet, the crew of the DC-10-30F noticed that the york control of the captain and the first officer moved laterally independently of each other for approximately two inches. After making an unscheduled uneventful landing at dulles the left aileron cable tension regulator assembly was found to have a decrease in cable tension. After lubrication, the unit jumped to a position which provided proper cable tension between the control wheel and the aileron control loop. The operator changed their lubrication program on the assemblies from 'on condition' to every 2500 hours which equates to more than once a year.

Aircraft

Registration
N106WA
Reported as
Douglas DC-10-30F
Category
Airplane
Serial number
46905
Airframe hours
22,126
Engine
GE CF6-50, 17,000 lbs thrust, turbo jet
Damage
No damage
Flight
Part 121
Registered owner
World Airways, Inc.
Airworthiness certificate
Standard, Transport
Departed
CHS · Charleston, SC
Destination
PHL · Philadelphia, PA
Flight plan
IFR
Airport
IAD · Dulles International, runway 1B, 11,500 × 150 ft, concrete

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
42
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
10,500 total · 4,200 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
20 statute miles
Temperature
81 °F, dew point 64 °F
Observed at
IAD