Aviation Investigation Report A98H0003

Glossary

A

A
ampere
A&P
airframe and powerplant
AAIB
Aircraft Accident Investigation Bureau (Swiss)
AC
Advisory Circular
AC
alternating current
ACARS
aircraft communications addressing and reporting system
ACC
air conditioning controller
ACC
area control centre
ACO
Aircraft Certification Office
ACP
audio control panel
ACSEP
Aircraft Certification Systems Evaluation Program
AD
Airworthiness Directive
ADAS
auxiliary data acquisition system
ADC
air data computer
ADG
air-driven generator
ADT
Atlantic daylight time
AEG
Aircraft Evaluation Group
AEGIS
Advanced Electronic Guidance and Instrumentation System
AES
airborne earth station (within discussion of ACARS)
AES
Auger electron spectroscopy (within discussion of material analysis)
AFCB
arc fault circuit breaker
AFF
aircraft firefighting
AFM
Airplane (or Aircraft) Flight Manual
AFS
auto flight system
agl
above ground level
Al
aluminum
ALAR
Approach and Landing Accident Reduction
ALPA
Air Line Pilots Association
AMU
audio management unit
AND
aircraft nose down
ANU
aircraft nose up
AOC
Air Operator Certificate
AOL
All Operator Letter
AOM
Aircraft Operations Manual
AP
Autopilot
APU
auxiliary power unit
ARAC
Aviation Rulemaking Advisory Committee
ARINC
Aeronautical Radio Inc.
ARP
Aerospace Recommended Practice
ARSR
air route surveillance radar (USA)
ARTCC
Air Route Traffic Control Center (USA)
ASA
Aviation Safety Advisory
ASB
Alert Service Bulletin
ASC
automatic systems control
ASCP
air systems control panel
ASDE
airport surface detection equipment
ASHRAE
American Society of Heating, Refrigeration and Air Conditioning Engineers
ASIL
Aviation Safety Information Letter
asl
above sea level
ASN
assigned serial number
ASR
Aviation Safety Recommendation
ASTM
American Society for Testing and Materials
ASTRAC
Aging Transport Systems Rulemaking Advisory Committee
ATA
Air Transport Association
ATC
air traffic control
ATIS
automatic terminal information service
ATPL
airline transport pilot licence
ATS
air traffic services
AU
avionics upper [panel]
AVI
Audio-Video Interleave [Microsoft]
AWG
American Wire Gauge

B

BDN
broadband distribution network
BEA
Bureau d'Enquêtes et d'Analyses pour la Securité de l'Aviation Civile (France)
BIO
Bedford Institute of Oceanography

C

14 CFR
Title 14, Code of Federal Regulations (USA)
°C
degree(s), Celsius
CAA
civil aviation authority
CAAC
Civil Aviation Administration of China
CAC
center accessory compartment
CAD
computer-aided design
CAM
cockpit area microphone
CANMET
Canada Centre for Mineral and Energy Technology
CARAC
Canadian Aviation Regulation Advisory Council
CARs
Canadian Aviation Regulations
CASS
Continuing Analysis and Surveillance System
CAVOK
ceiling and visibility OK
CB
circuit breaker
CC
cluster controller
cc
cubic centimetre
CCA
circuit card assembly
CCG
Canadian Coast Guard
CCGS
Canadian Coast Guard Ship
CDR
critical design review
CEA
Central Engineering Agency
CEM
Cabin Emergency Manual
CF
Canadian Forces
CFAV
Canadian Forces Auxiliary Vessel
CFB
Canadian Forces Base
CFD
computational fluid dynamics
CFM
cubic feet per minute
CFR
Code of Federal Regulations (USA)
CFS
cabin file server
CHS
Canadian Hydrographic Services
cm
centimetre
CME
Chief Medical Examiner
CMU
communications management unit
C of G
centre of gravity
COMPT
compartment
CPD
circuit protection (or protective) device
CPU
central processing unit
CRE
component responsible engineering
CRES
corrosion resistant
CRM
cockpit (or crew) resource management
CRP
communication radio panel
CSD
certification supporting document
CSR
Canadian Seabed Research
CSRTG
Cabin Safety Research Technical Group
CTIU
cabin telephone interface unit
CUMA
Canadian Underwater Mine-countermeasures Apparatus
CVFR
controlled visual flight rules
CVIS
cabin video information system
CVR
cockpit voice recorder
CYAW
Halifax Shearwater Airport (Nova Scotia)
CYHZ
Halifax International Airport (Nova Scotia)
CYQI
Yarmouth Airport (Nova Scotia)
CYQM
Greater Moncton Airport (New Brunswick)

D

D
energy density expressed in J/m2
DAS
Designated Alteration Station
DAU
disk array unit
dB
decibel
dBi
decibel isotropic
dBm
decibel referenced to 1 milliwatt
dBZ
a unit of radar reflectivity used in meteorology
DC
direct current
DCAS
digitally controlled audio system
DDS
The FAA's DAS, DOA, and SFAR 36 Program
DEU
display electronic unit
DFDAU
digital flight data acquisition unit
DFDR
digital flight data recorder
DFO
Department of Fisheries and Oceans
DIN
Deutsche Industrie Norm
DITS
digital information transfer system
DME
distance measuring equipment
DMS
Douglas Material Specification
DNA
deoxyribonucleic acid
DND
Department of National Defence
DOA
Delegation Option Authorization
DPS
Douglas Process Standard
DREA
Defence Research Establishment Atlantic
DSIS
Deep Seabed Intervention System
DTL
Decorative PVF laminate
DTM
digital terrain model
DU
display unit

E

E
electric field strength
E&E
electrical and electronic equipment
EAD
engine and alert display
EAPAS
Enhanced Airworthiness Program for Airplane Systems
EC
Environment Canada
ECM
electronic countermeasures
EDP
engine-driven hydraulic pump
EDT
eastern daylight savings time
EEC
electronic engine control
EEPROM
electrically erasable programmable read-only memory
EIRP
effective isotropic radiated power
EIS
electronic instrument system
ELA
electrical load analysis
ELT
emergency locator transmitter
EMC
electromagnetic compatibility
EMI
electromagnetic interference
EMO
Emergency Measures Organization (or Office)
EO
engineering order
EPC
Emergency Preparedness Canada
EPCU
electrical power control unit
EPR
engine pressure ratio
ESC
environmental system controller
ETFE
ethylene-tetrafluoroethylene
ETOPS
Extended Range Twin Engine Operations
EUROCAE
European Organisation for Civil Aviation Equipment
EXT
extended

F

°F
degree(s), Fahrenheit
F/A
flight attendant
FA1W
Northeast Region Area Forecast
FAA
Federal Aviation Administration (USA)
FACN35
Canadian area forecast, District 35
FADEC
full-authority digital electronic control
FAR
Federal Aviation Regulation (USA)
FAUS5
US Area Forecast
FBS
fixed-base simulator
FBV
French Bureau Veritas
FCC
flight control computer
FCOM
Flight Crew Operating Manual
FCP
flight control panel
FCRL
flight crew reading light
FD
flight director
FDAU
flight data acquisition unit
FDCU
fire detection control unit
FDM
Flight Data Monitoring
FDR
flight data recorder
FDU(A)
Fleet Diving Unit (Atlantic)
FE
flap extension
FEP
fluorinated ethylene-propylene [resin]
FH
flight hours
FIB
focused ion beam
FL
flight level
FMA
flight mode annunciator
FMC
flight management computer
FMS
flight management system
FMU
fuel metering unit
FO
first officer
FOC
Flight Operations Centre (Swissair)
FOCA
Federal Office for Civil Aviation (Switzerland)
FOCUS
flight operations computer system
FOEB
Flight Operations Evaluation Board
FOO
flight operations officer
FOQA
flight operational quality assurance
fpm
feet per minute
FR
fluid-resistant [primer paint]
FS
frame station
FSAW
Flight Standards Information Bulletin for Airworthiness
FSB
Flight Standardization Board
FSC
fuel system controller
FSEG
Fire Safety Engineering Group - University of Greenwich
FSR
field service representative
FSS
flight service station
ft.
foot (feet)
FWD
forward

G

g
gravity
GB
gigabyte
GB
Swissair General/Basics: Flight Crew [manual]
GCU
generator control unit
GES
ground earth station
GHz
gigahertz
GIS
Geographic Information System
gpm
gallons per minute

H

h
hour(s)
HCU
hydraulic control unit
HDD
hard-disk drive
HDS
Halon Distribution System
HDU
head-end distribution unit
HF
high frequency
HI
Hollingsead International
HIRF
high-intensity radiated field
HMCS
Her Majesty's Canadian Ship
HMU
hydro-mechanical unit
HPC
high-pressure compressor
HPT
high-pressure turbine
HSC
hydraulic system controller
HTML
Hypertext Markup Language
Hz
hertz

I

IAS
indicated airspeed
IC
integrated circuit
ICA
Instructions for Continued Airworthiness
ICAO
International Civil Aviation Organization
IDG
integrated-drive generator
IDN
identification number
IFE
in-flight entertainment
IFEN
in-flight entertainment network [the IFE system of Interactive Flight Technologies]
IFR
instrument flight rules
IFT
Interactive Flight Technologies
IGV
inlet guide vanes
IIC
investigator-in-charge
ILS
instrument landing system
IMC
instrument meteorological conditions
in.
inch(es)
in. Hg
inches of mercury
INMARSAT
International Maritime Satellite Organization
IPC
Illustrated Parts Catalogue
IRU
inertial reference unit
ISE
International Submarine Engineering Ltd.
ISO
International Organization for Standardization
ISOL
isolation
ISVD
in-seat video display
IVR
image-based virtual reality

J

J
joule
JAA
Joint Aviation Authorities
JAR
Joint Aviation Requirements
JCAB
Civil Aviation Bureau of Japan
JFK
John F. Kennedy [International Airport] (New York)

K

kB
kilobyte
KBGR
Bangor International Airport (Maine)
KBOS
General Edward Lawrence Logan International Airport (Massachusetts)
kg
kilogram
kHz
kilohertz
KIAS
knots indicated airspeed
km
kilometre(s)
kPa
kilopascal(s)
kt
knot(s)
kV
kilovolt(s)
kVA
kilovolt-ampere
kW
kilowatt(s)

L

L
litre
L/min
litres per minute
LAACO
Los Angeles Aircraft Certification Office
LAN
local area network
lat.
latitude
LAV
lavatory
lb
pound(s)
lb/min
pound(s) per minute
lbf
pound force
LCD
liquid crystal display
LEAF
Laser Environmental Airborne Fluorosensor
LKP
last known position
LLS
laser line scan
LLSG
Geneva International Airport (Switzerland)
LOI
Letter of Intent
long.
longitude
LOPA
Layout of Passenger Accommodation
LP
low pressure
LPC
low-pressure compressor
LPT
low-pressure turbine
LRU
line replaceable unit
LRW
Laurentides
LSAS
longitudinal stability augmentation system
LVDT
linear variable differential transducer

M

M
Mach number
°M
degree(s), magnetic compass
m
metre
MAC
mean aerodynamic chord
MACZFW
mean aerodynamic chord zero fuel weight
MANOPS
[ATC] Manual of Operations
MAPRC
modified aromatic polyimide resin coating
MAR
main avionics rack
MB
megabyte
M/C
maître de cabine
MCDU
multifunction control display unit
MCU
Major Crimes Unit
MD
McDonnell Douglas
MDC
McDonnell Douglas Corporation
MDF
main debris field
MDL
master data list
METAR
aviation routine weather report
MFM
Modified Frequency Modulation
MHz
megahertz
mi.
mile(s)
MIDO
Manufacturing Inspection District Office
MIL
military [standard]
min
minute(s)
mJ
millijoule
mL
millilitre(s)
MM
maintenance manual
mm
millimetre(s)
MO
Modification Order
MOC
Military Operations Centre
MOE
maintenance organization exposition
MPEG
Motion Pictures Experts Group
MPET
metallized polyethylene terephthalate
MPVF
metallized polyvinyl fluoride
MRB
Maintenance Review Board
ms
milliseconds
MSC
miscellaneous system controller
MSEP
Marine Safety and Environmental Protection
msl
mean sea level
MTEB
management terminal electronic box
MTOW
maximum take-off weight
MU
management unit
mV
millivolt
MVD
management video display
MW
megawatt

N

N/A
not applicable
N/C
no change
N1
rotational speed of the low-pressure compressor in rpm or % rpm
N1c2
corrected low-pressure rotor speed (derived from Tt2)
N2
rotational speed of the high-pressure compressor in rpm or % rpm
N2c2
corrected high-pressure rotor speed (derived from Tt2)
NARDS
Nav Canada Auxilliary Radar Display System
NAV
navigation
NAVAID
navigational aid
NCD
no computed data
ND
navigation display
NDB
non-directional [radio] beacon
NDU
no data update
NFPA
National Fire Protection Association
nm
nautical mile(s)
NORDO
no radio (absence or failure of radio equipment)
NPR
National Program Review
NPRM
Notice of Proposed Rulemaking
NRMP
non-reversible motor pump
NS TPW
Nova Scotia Department of Transportation and Public Works
NSU
network switching unit
NTO
no technical objection
NTSB
National Transportation Safety Board (USA)
NVM
non-volatile memory
NWS
National Weather Service

O

OCME
Office of the Chief Medical Examiner
OCR
optical character recognition
OD
outside diameter
ODA
Organizational Designation Authorization
OIG
Office of the Inspector General (USA)
oz
ounce(s)

P

P/B
push button
PA
passenger address
Pamb
pressure, ambient
PBE
protective breathing equipment
PBR
planning based on re-clearance
PET
polyethylene terephthalate
PF
pilot flying
PFD
primary flight display
PIC
pilot-in-command
PIREP
pilot report (of in-flight conditions)
PMA
Parts Manufacturing Approval
PMA
permanent magnet alternator
PN
part number
PNF
pilot not flying
PSEU
proximity sensor electronic unit
psi
pounds per square inch
psia
pounds per square inch absolute [pressure]
psig
pounds per square inch gauge
PSU
power supply unit
Pt2
fan inlet total pressure
Pt4.95
total pressure at station 4.95 (exhaust)
PTFE
polytetrafluoroethylene
PTT
push-to-talk
PVC
polyvinyl chloride
PVF
polyvinyl fluoride
PVF2
polyvinylidene fluoride
PWGSC
Public Works and Government Services Canada

Q

QA
quality assurance
QAR
quick access recorder
QN
Queen of the Netherlands (name of dredge ship)
QNH
altimeter setting that references the indicated altitude to sea level

R

R&D
research and development
RA
radio altimeter
RAM
random access memory
RCC
Rescue Co-ordination Centre
RCCB
remote control circuit breaker
RCMP
Royal Canadian Mounted Police
RF
radio frequency
RGS
remote ground station
RMP
reversible motor pump
ROV
remotely operated vehicle
rpm
revolutions per minute
RPT
Radiant Panel Test
RTCA
Radio Technical Commission for Aeronautics

S

s
second(s)
SAE
Society of Automotive Engineers
SAI
standby attitude indicator
SAR
search and rescue
SARP
International Standards and Recommended Practices
SATCOM
satellite communications
SB
Service Bulletin
SBA
Santa Barbara Aerospace
SCN
Specification Change Notice
SCP
system control panel
SCR
Special Certification Review
SCU
supplemental control unit
SD
system display
SDCP
system display control panel
SDR
Service Difficulty Report
SDU
satellite data unit
SDU
seat disconnect unit (in discussion of IFEN system)
SEB
seat electronic box
SFAR
Special Federal Aviation Regulation (USA)
SGC
Site Group Chairperson
SID
standard instrument departure
SIGMET
significant meteorological information
SITA
Société Internationale de Télécommunications Aéronautiques (Airline Telecommunication and Information Services)
SL
Service Letter
sm
statute mile(s)
SN
serial number
SPOT
satellite pour l'observation de la terre
SR 111
Swissair Flight 111
SRM
Structural Repair Manual
SSS
side scan sonar
STA
manufacturing station
STAR
standard terminal arrival route
STC
Supplemental Type Certificate
SVA
stator vane actuator
SWR
Swiss Air Transport Company Ltd. (ATC designation)

T

°T
degree(s), True
t
tonne
TAF
terminal aerodrome forecast
TAS
true airspeed
TAT
total air temperature
TBD
to be determined
TC
Transport Canada
TCA
terminal control area
TCAS
traffic alert and collision-avoidance system
TCJC
temperature, cold junction, Celsius
TEC
turbine exhaust case
TED
trailing edge down
TEL
trailing edge left
TEM
transmission electron microscopy
TER
trailing edge right
TEU
trailing edge up
TO
Technical Order
torr
Torricelli, a non-metric unit of pressure equal to 1/760 atmosphere
TOW
take-off weight
TR
transformer rectifier
TRA
throttle resolver angle
TSB
Transportation Safety Board of Canada
TSO
Technical Standard Order
Tt2
total temperature of the air at Station 2 (compressor inlet)
Tt4.95
total temperature at Station 4.95 (exhaust)
TWA
Trans World Airlines

U

U/S
unserviceable
UL
Underwriter's Laboratory
ULB
underwater locator beacon
URT
Underwater Recovery Team
US
United States
USA
United States of America
USN
United States Navy
USS
United States Ship
UTC
Coordinated Universal Time

V

V
volt(s)
VA
volt-ampere
VES
video entertainment system
VHF
very high frequency
VMC
visual meteorological conditions
Vmin
FMC-calculated minimum operating speed
VOD
video on demand
VOR
very high-frequency omni-directional range [beacon]
VSV
variable stator vane
VTR
video tape recorder
VTU
verbal thought unit

W

W
watt
WAN
wide area network
WDM
Wiring Diagram Manual
WS
Work Statement

X

XL-ETFE
cross-linked ethylene-tetrafluoroethylene

Y

Y
axe longitudinal

Z

Z
axe vertical
Z
Zulu [time] (equivalent to UTC)
ZFW
zero fuel weight

Symbols

Å
Angstrom
λ
lambda (wavelength)
µm
micrometre(s)
ø
phase
π
pi (3.1416)
minute(s)
second(s)
°
degree(s)
Date modified: