Research Projects

Efficacy of Pilot Braking Action Reports to RCAM Using ASTM Standard Definitions

ASTM in concert with the Society of Aircraft Performance and Operations Engineers recently published E3188 - Standard Terminology for Aircraft Braking Performance. Measuring the braking reports from flight crews trained with the new definitions are then mapped to runway conditions and aircraft measurements to create an objective metric for accuracy.

Background (Describe the current situation or problem in the industry, and how your idea would address it.)

The Runway Condition Assessment Matrix was developed using flight crew braking reporting inputs that were never harmonized with the engineering specific guidance from FAA AC 25-32 (Landing Performance Data for Time of Arrival Landing Performance.) This gap in safety assurance has been addressed after a multi-year effort on the part of the Society of Aircraft Performance and Operations Engineers (SAPOE) in collaboration with ASTM. The result was, for the first time, a published standard for braking terminology to include pilot braking action reports and a new report known as the aircraft braking action report. For the first time there is the capability of training pilots to give a more technically accurate report of braking action and to compare them with aircraft data and runway condition reports.

Objective (What is the desired product or result that will help the airport industry?)

There has never been a truly objective and controlled study of pilot braking action reports. The objective is to study the efficacy of trained crews with non-trained crews and pilot reports with aircraft braking data. The hypothesis is that adding standardized training with formal definitions will demonstrate an increased confidence in pilot reports for both airport and aircraft operators, thus increasing the safety assurance process of the new TALPA guidance in AC 150/5200-30D.

Approach (Describe in general terms the steps you think are needed to achieve the objective.)

Four Winds Aerospace Safety is already in collaboration with Aviation Safety Technologies (AST), Transport Canada, the FAA, and SAPOE regarding standards development, advisory guidance, and aircraft sensing technology in this field. The first step is to have a regulatory agency partner with an air carrier to facilitate standardized training and guidance material. The second step is to have AST coordinate with one of their existing customers to collect data from the aircraft and report the braking performance using the standardized scale from the ICAO GRF/FAA RCAM. The third step would be to capture the data from braking action reports, aircraft braking action data feeds, and airport Rnwy Condition Assessments through a period covering rain and frozen contaminant. The final step would be to analyze the data and report the findings.

Cost Estimate and Backup (Provide a cost estimate and support for how you arrived at the estimate.)

AST cost for data gathering and analysis of 737NG aircraft - $25,000 (Administrative costs for airline NDA's, data gathering, compilation, and data analysis

Four Winds Aerospace Consulting costs - $17,000 (40 hours total at $350 per hour + $3000 travel and administrative expenses)

Regulatory agency cooperation would be provided by FAA, Transport Canada, or both.

Related Research - List related ACRP and other industry research; describe gaps (see link to Research Roadmaps above), and describe how your idea would address these gaps. This is a critical element of a synthesis topic submission.

There has been no other research in this field that has combined these elements.

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Idea No. 447