chet collett director flight ops engineering alaska airlines · a runway is wet when it is neither...
TRANSCRIPT
Chet Collett – Director Flight Ops Engineering
Alaska Airlines
2© 2016 Alaska Airlines - Confidential
Agenda•AC 150/5200-30D
•Reporting WET Runway Conditions
•RCAM / Vertical and Horizontal
•FAA Digital NOTAM System Bugs
AC 150-5200-30D Errata
• Did a fairly good job of capturing the TALPA ARC Recommendation
• But it included some language that caused runway closures when there was no operational hazard:
AC 150-5200-30D Errata
•Required WET Runway Reporting
•October 1, 2016 was the implementation date
Wet Runway Reporting
1.12.23 Wet Runway.
A runway is wet when it is neither dry nor contaminated. For purposes of condition reporting and airplane performance, a runway can be considered wet when more than 25 percent of the runway surface area within the reported length and the width being used is covered by any visible dampness or water that is 1/8-inch or less in depth.
Note: A significant change to condition reporting includes the requirement and ability to report ‘Wet’ when visible dampness, or water that is 1/8-inch (3.3 mm) or less in depth exists on any surface (runways, taxiways, aprons, holding bays). This change is largely due to the airplane performance differences that exist between wet, dry, or runways with water greater than 1/8-inch (3.3 mm) in depth.
AC 150-5200-30D Errata
•Then on September 30, 2016 . . . FAA Published CertAlert 16-06
Wet Runway Reporting• 28 days after the FAA made WET runway Reporting optional
• Moderate to Heavy rain at LGA with NO FICON
• Could a 5/5/5 100% WET FICON have alerted the flight crew?
WET vs Standing Water – Effects of Rainfall Intensity
• Aircraft Performance differences are huge.• DRY
• WET
• Standing Water Greater than 1/8 INCH
RCAM – Vertical
RCAM – Horizontal
Landing RCAM
12© 2016 Alaska Airlines - Confidential
Takeoff RCAM
Digital NOTAM System (DNS) Bugs
• Percentage of coverage bug
Another example (real world)
ANC 12/002 ANC RWY 33 FICON 50 PRCT ICE, DRY, DRY SANDED OBSERVED AT 1612010204. 1612010205-1612020205
ANC 12/003 ANC RWY 07R FICON 60 PRCT ICE, DRY, DRY SANDED OBSERVED AT 1612010205. 1612010205-1612020205
• In this case the ICE on the first third of these runways should have been either RWYCC 1 or 3 (Dependent on upgrade capability) – so 3/6/6 or 1/6/6
• Instead, NO RWYCC were able to be generated by the DNS
Digital NOTAM System Bugs
• Slippery When Wet
Slippery When Wet Should be a NOTAM – NOT a FICON
DNS should not allow WET or Contaminated RWYCC above 3/3/3
Other Issues that have been Problematic
• FICON and ATIS do not provide the same information (and required information for Takeoff)
FICON:!ORD 12/491 ORD RWY 28R FICON 5/3/3 100 PRCT WET, 30 PRCT 1/4IN WET SN, 100 PRCT 1IN WET SN OBSERVED AT 1612120337. 1612120337-1612130337
ATIS:
ORD ATIS INFO Y 0351Z. 26008KT 5SM BR OVC008 01/M01 A2975 (TWO NINER SEVEN FIVE). ARR EXP VECTORS ILS RWY 28C APCH. READBACK ALL RWY HOLD SHORT INSTRUCTIONS. DEPS EXP RWYS 22L, 28R. NOTAMS... RWY 4L, 22R CLSD, RWY 9L, 27R CLSD, RWY 10R, 28L CLSD, RWY 15, 33 CLSD. RWY 27L ILS OTS. BA ADZYS ARE IN EFCT. RWY 22L RWY CONDITION CODE,, 5 , ,, 5 , ,, 5 ,,AT, ,, 0142Z RWY 27R CONDITION CODE,, 3 , ,, 3 , ,, 3 ,,AT, ,, 0155Z RWY 27L RWY CONDITION CODE,, 3 , ,, 3 , ,, 3 ,,AT, ,, 0155Z RWY 28R RWY CONDITION CODE,, 5 , ,, 3 , ,, 3 ,,AT, ,, 0338Z RWY 28C RWY CONDITION CODE,, 5 , ,, 5 , ,, 5 ,,AT, ,, 0312Z . USE CAUTION FOR MEN AND EQUIP AT NUMEROUS SITES ON THE FIELD. CPDLC SERVICES, AVAILABLE. WHEN READY TO TAXI CONTACT GND METERING ON FREQ 121.67. ...ADVS YOU HAVE INFO Y.
In Conclusion
• Alaska Airlines sincerely hopes the FAA will schedule an industry “After Action TALPA Symposium” to discuss how the first year of implementation went.
• This symposium should include Airports, Airlines, Aircraft Manufacturers and Regulators
• It should include:• Wet Runway Reporting – Future Plans
• Digital NOTAM System – Bug Fixes
• AC 150-5200-30F (Draft Recommendations)
Question?
Is the portion of the Runway that is being maintained MORE THAN 25%
covered with a contaminant?
Yes, assign Runway Condition Codes and complete the Matrix Report (blue box)
No, DO NOT assign Runway Condition Codes but complete all other sections of the
Matrix Report if any contamination is present (blue box)
Misc. Data
°C
Yes or NoActive Precip?
Outside Air Temp
Local Time
Date
Runway
Airport
Initials
Flight #
Rwy
Mu
Sand Deicing Chem
Time AppliedRwy Treatment Used?
Decel
CFME
Before
After
(If Applicable)
Adjusted Runway Condition Codes
(ONLY If Downgrade or Upgrade Assessments Used)
Requires an explanation in the comments section below
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
“Matrix Report . . . _ _ _ Rwy _ _ _ __/__/__“Matrix Report . . . _ _ _ (Airport) (
Rwy _ _ _ Rwy #)
_ _ _ (inch) _ _ _ _ _ _ _ _ _ _ _ (Highest Depth only for Slush, Wet Snow
or Dry Snow and Standing Water [Water
1/8 “ or less report as WET with no depth])
(Contaminant Type [Report in terms in Green Boxes,
Water 1/8 “ or less report as WET])(
__/__/__Rwy Condition Codes)
(Remarks to be transmitted)
_ _ _ _ _ _ _ _ _ _ _ _ _ ____________________” (Date) (Time)
(% Coverage - 10,
25, 50, 75, or 100%)
_ _ _ (%)
Dry 6 5 Frost 5 3
2 5GREATER Than
1/8"3 5
1/4" 1/2" 3/4" 1" 3
4 3
Ice 1 0Wet Ice, Water OVER Compacted
Snow, Snow OVER Ice
Wet (Damp)
Water or Slush Slush
1/8" or Less 2" or More
Compacted Snow
-15°C or Colder Warmer than -15°C
Wet Snow or Dry Snow
1/8" or
LESS
DepthDry or Wet Snow OVER
Compacted Snow
GREATER Than
1/8"1/8" or LESS
1st Rwy Third
- For Coverage 25% or Less, Enter Code 6
- Circle (or Mark) any contaminant below that covers more than 25% of the
Rwy Third. Record the most restrictive code in the box to the right.
- Circle (or Mark) Depth Only for:Water, Slush, Wet Snow, Dry Snow, or Any Snow
OVER Compacted Snow
Below Min Friction Level
Classification - Wet SlipperyDry 6 5 Frost 5 3
2 5GREATER Than
1/8"3 5
1/4" 1/2" 3/4" 1" 3
4 3
Ice 1 0
Wet (Damp)
SlushWater or Slush
GREATER Than
1/8"1/8" or LESS
Below Min Friction Level
Classification - Wet Slippery
1/8" or Less 2" or More
Wet Ice, Water OVER Compacted
Snow, Snow OVER Ice
Dry or Wet Snow OVER
Compacted SnowDepth
Compacted Snow
-15°C or Colder Warmer than -15°C
2nd Rwy Third
Wet Snow or Dry Snow
Water, Slush, Wet Snow, Dry Snow, or Any Snow OVER Compacted Snow
1/8" or
LESS
- For Coverage 25% or Less, Enter Code 6
- Circle (or Mark) any contaminant below that covers more than 25% of the
Rwy Third. Record the most restrictive code in the box to the right.
- Circle (or Mark) Depth Only for:
Dry 6 5 Frost 5 3
2 5GREATER Than
1/8"3 5
1/4" 1/2" 3/4" 1" 3
4 3
Ice 1 0Wet Ice, Water OVER Compacted
Snow, Snow OVER Ice
1/8" or Less 2" or More
Compacted Snow
-15°C or Colder Warmer than -15°C
1/8" or
LESS
DepthDry or Wet Snow OVER
Compacted Snow
GREATER Than
1/8"1/8" or LESS
Below Min Friction Level
Classification - Wet Slippery
Wet Snow or Dry Snow
Wet (Damp)
Water or Slush Slush
3rd Rwy Third
- For Coverage 25% or Less, Enter Code 6
- Circle (or Mark) any contaminant below that covers more than 25% of the
Rwy Third. Record the most restrictive code in the box to the right.
- Circle (or Mark) Depth Only for:Water, Slush, Wet Snow, Dry Snow, or Any Snow
OVER Compacted Snow
2In
som
e ci
rcum
stance
s, t
hes
e ru
nw
ay
surf
ace
con
dit
ions
may
not
be
as
slip
per
y as
the
runw
ay
condit
ion c
ode
ass
igned
by
the
Matr
ix. T
he
air
po
rt o
per
ato
r m
ay
issu
e a h
igher
runw
ay
condit
ion
code
(but
no h
igher
than
code
3)
if M
u v
alu
es g
reate
r th
an 4
0 a
re o
bta
ined
on a
ll t
hre
e th
irds
of
the
runw
ay
by
a p
roper
ly o
per
ate
d a
nd c
ali
bra
ted f
rict
ion m
easu
ring d
evic
e a
nd a
ll o
ther
obse
rvati
on
s,
judgm
ent,
an
d v
ehic
le b
rakin
g a
ctio
n s
upport
th
e h
igh
er r
un
way
con
dit
ion
code. T
he
dec
isio
n t
o
issu
e a h
igh
er r
un
way
con
dit
ion
code
than
wou
ld b
e ca
lled
for
by
the
Ma
trix
can
not
be
base
d o
n M
u
valu
es a
lon
e; a
ll a
vail
able
mea
ns
of
ass
essi
ng r
un
way
slip
per
ines
s m
ust
be
use
d a
nd m
ust
su
pport
the
hig
her
ru
nw
ay
con
dit
ion
code. T
his
ab
ilit
y to
rais
e th
e re
port
ed r
unw
ay
condit
ion c
ode
to a
cod
e
3 c
an o
nly
be
appli
ed t
o t
hose
runw
ay
condit
ions
list
ed u
nder
code
0 a
nd 1
in t
he
Matr
ix.
The
air
po
rt o
per
ato
r m
ust
als
o c
onti
nuall
y m
onit
or
the
runw
ay
surf
ace
as
long a
s th
e hig
her
code
is i
n
effe
ct t
o e
nsu
re t
hat
the
runw
ay
surf
ace
condit
ion d
oes
not
det
erio
rate
bel
ow
the
ass
igned
code.
T
he
exte
nt
of
monit
ori
ng
must
consi
der
all
vari
able
s th
at
may
aff
ect
the
runw
ay
surf
ace
condit
ion,
incl
udin
g a
ny
pre
cipit
ati
on c
ondit
ions,
changin
g t
emper
atu
res,
eff
ects
of
win
d,
freq
uen
cy o
f ru
nw
ay
use
, and t
ype
of
air
craft
usi
ng
the
runw
ay.
If
sand o
r oth
er a
ppro
ved r
un
way
trea
tmen
ts a
re u
sed t
o
sati
sfy
the
requir
emen
ts f
or
issu
ing t
his
hig
her
runw
ay
condit
ion c
ode,
the
conti
nued
monit
ori
ng
pro
gra
m m
ust
confi
rm c
onti
nued
eff
ecti
venes
s of
the
trea
tmen
t.
Cau
tion
: T
emper
atu
res
nea
r an
d a
bove
fre
ezin
g (
e.g., a
t -3
°C a
nd w
arm
er)
may
cau
se
con
tam
inan
ts t
o b
ehave
more
sli
pper
y th
an
in
dic
ate
d b
y th
e ru
nw
ay
con
dit
ion
code
giv
en i
n
the
Matr
ix. A
t th
ese
tem
per
atu
res,
air
po
rt o
per
ato
rs s
hou
ld e
xer
cise
a h
eigh
ten
ed l
evel
of
run
way
ass
essm
ent,
an
d s
hou
ld d
ow
ngra
de
the
run
way
con
dit
ion
code
if a
ppro
pri
ate
.
Typ
eD
ryW
et
(Dam
p)
Sli
pp
ery
Wh
en
We
t -
Rw
y B
elo
w F
ricti
on
Le
vel
Cla
ssif
icati
on
Wa
ter
(sta
nd
ing
)F
ros
t
Dry
Sn
ow
or
Wet
Sn
ow
OV
ER
Co
mp
acte
d
Sn
ow
Ice
We
t Ic
e;
Wa
ter
OV
ER
Co
mp
ac
ted
Sn
ow
; D
ry
Sn
ow
or
We
t S
no
w O
VE
R
Ice
De
pth
N/A
N/A
N/A
GR
EA
TE
R
tha
n 1
/8"
1/8
" o
r
LE
SS
GR
EA
TE
R
tha
n 1
/8"
1/8
" o
r
LE
SS
GR
EA
TE
R
tha
n 1
/8"
N/A
N/A
N/A
N/A
N/A
N/A
Te
mp
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
-15
°C o
r
CO
LD
ER
WA
RM
ER
tha
n -
15
°CN
/AN
/AN
/A
Rw
y
Co
de
65
32
52
53
44
33
10
Co
mp
ac
ted
Sn
ow
S
lus
hD
ry S
no
w o
r W
et
Sn
ow
Co
nta
min
ate
d
(Comments or additional PIREPS)