Takeoff And Landing Performance Assessment

TALPA Chris Meyer MnDOT Aeronautics

•  Accident Case Study •  Runway Condition Assessment Matrix (RCAM) •  Resources for Education

TALPA

SWA Flight 1248, Chicago Midway, Dec 8, 2005

•  Boeing 737 ran off departure end of Rwy 31C

•  1 Death •  1 Serious Injuries •  21 Minor Injuries •  Aircraft Substantially

Damaged

•  7:14 PM (Night) •  Temperature - 28°F •  ½ Mile Visibility •  Moderate Snow •  Freezing Fog •  All aircraft systems

functioning normally •  No crew impairment

•  Only Rwy 31C offered an approach above minimums

•  8 knot tailwind •  Rwy 31C plowed 27

minutes prior to landing •  Braking Action reported as

“fair to poor”*

Rwy 31C – 6522x150

NTSB’s Safety Issues: •  Flight Crew ADM •  SWA policies, guidance, and training •  Arrival landing distance assessments •  Safety Margins •  Runway Safety Areas •  Runway surface condition

assessments •  Braking action reports •  Airplane-based friction measurements

NTSB’s Recommendations:

“Develop and issue formal guidance regarding standards and guidelines for the development, delivery, and interpretation of runway surface condition reports.”

The FAA Forms the TALPA ARC

FAA

OEMs Air

Carriers Regulators Airport

Operators

How do we improve the methods of assessing and reporting runway conditions?

Recommendation, Effective October 1, 2016:

All parties use standardized terminology...

TALPA What’s Common?

Type Depth Temperature

Runway Condition Assessment Matrix

RCAM

The new tool airport operators will use to report a runway surface assessment when contaminants are present on paved runway surfaces. (Effective October 1, 2016)

www.faa.gov Type “TALPA” in

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AC No: 150/5200-30D 7/29/2016 Chapter 5

Assessment Criteria

This section includes contaminant type and depth categories which are objective assessments that have been determined by manufacturers to cause specific changes in aircraft braking performance.

Reportable Contaminants

Wet (water ≤ 1/8”) Water (> 1/8”) Frost Slush Ice Wet Ice Wet Snow Wet Snow Over Ice Dry Snow Dry Snow Over Ice

Compacted Snow Water over Comp. Snow Wet Snow over Comp. Snow Dry Snow over Comp. Snow Slush over Ice Slippery When Wet Ash Rubber (taxiways only) Oil Sand Mud

Runway Condition Description

Contaminants, categorized by type, depth, and temperature that directly affect takeoff and landing performance are provided (details).

Runway Condition Code – RwyCC (6-0)

Represent the runway condition description based on defined terms and increments (only applied when >25% overall runway length & width)

“X/X/X” shorthand format; runway divided in touchdown, midpoint, and rollout sections

They replace Mu values!!!

Applied by pilots to determine landing performance parameters

Braking action “FAIR” is now replaced with “MEDIUM”

Runway Condition Code – RwyCC

Disseminated via:

1)   Federal NOTAM system 1)   NOTAM Manager (preferred) 2)   ENII System (phasing out) 3)   Telephone

2)   Airport Traffic Control Tower

3)   Flight Service Stations

4)   Common Traffic Advisory Frequency

Runway Condition Code – RwyCC

A resultant code of “0” requires runway closure until mitigations are accomplished to increase braking action.

Downgrade Assessment Criteria

To be used when data suggests conditions are worse than indicated by present contaminant. Tools include:

1)   Certified Friction Measurement Equipment (CFME)/Decelerometers used for generating legacy Mu values

2)   Vehicle Deceleration/Directional Control Observations

3)   Pilot Reported Braking Action

BJI RWY 31 FICON 3/3/3 30 PRCT 1/4IN WET SN. 1612201341-1612201411

What Are Your…

Take Some Time To Educate Yourself: http://www.faa.gov/about/initiatives/talpa/

Take Some Time To Educate Yourself: http://www.faa.gov/about/initiatives/talpa/

Take Some Time To Educate Yourself: http://www.faa.gov/about/initiatives/talpa/

Take Some Time To Educate Yourself: http://www.faa.gov/about/initiatives/talpa/

Take Some Time To Educate Yourself: http://www.faa.gov/about/initiatives/talpa/

Remember to update your Snow and Ice Control Plan (SICP)!

FAA is developing a change template that covers what must now be included in SICPs based on the revised AC

Questions, Comments, or

Concerns?

Chris Meyer Aviation Representative MnDOT Aeronautics 651-234-7224 christopher.meyer@state.mn.us