Chet Collett Director Flight Ops Engineering Alaska Airlines · A runway is wet when it is neither dry nor contaminated. ... airplane performance differences that exist between wet,

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:


•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.


•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


Classification - Wet Slippery


Wet Ice, Water OVER Compacted

Snow, Snow OVER Ice

Dry or Wet Snow OVER

Compacted SnowDepth

Compacted Snow


2nd Rwy Third


Water, Slush, Wet Snow, Dry Snow, or Any Snow OVER Compacted Snow

1/8" or

LESS




- 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


Compacted Snow


1/8" or

LESS

DepthDry or Wet Snow OVER

Compacted Snow

GREATER Than

1/8"1/8" or LESS


Classification - Wet Slippery


Wet (Damp)

Water or Slush Slush

3rd Rwy Third




- Circle (or Mark) Depth Only for:Water, Slush, Wet Snow, Dry Snow, or Any Snow

OVER Compacted Snow

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(Comments or additional PIREPS)

Documents

Chet Collett Director Flight Ops Engineering Alaska Airlines · A runway is wet when it is neither dry nor contaminated. ... airplane performance differences that exist between wet,