Special Modification To Standards Process for Airplane Design Group VI The Boeing 747-8 Presented to: ACI-NA First B-747-8 Airport Compatibility Meeting By: George Legarreta, Office of Airport Safety and Standards, AAS-100 Date:, Washington, D.C.
Special Modification-to-Standards [MoS] Process What, Why, and Who? 2
What is it? A unique, orderly process for evaluating your submitted proposals for obtaining an equivalent level of safety when existing airfield conditions preclude compliance with an Airplane Design Group VI design standard Why? Permits a more consistent review of submitted proposals, where acceptable proposals are applied nation-wide What works at JFK should work at SFO Serves as a vehicle to resolve operational impacts and determine special operational, procedural solutions among the various FAA lines-of-business 3
Administrator AOA Deputy Administrator ADA Office of the Chief Counsel AGC Office of Civil Rights ACR Office of Govt. & Industry Affairs AGI Office of System Safety ASY Assistant Adm. for Policy, Planning, & Int l Aviation API Assistant Adm. for Human Resource Management AHR Assistant Adm. for Region and Center Operations ARC Office of Public Affairs APA Assistant Adm. For Information Services AIO Free Flight Program Office AOZ Assistant Adm. For Financial Services ABA My LOB Associate Administrator for Commercial Space Transportation AST Associate Administrator for Airports ARP Associate Administrator for Civil Aviation Security ACS Associate Administrator for Aviation Safety AVS Associate Administrator for Air Traffic Services ATS Associate Administrator for Research and Acquisitions ARA 4
Who should submit a special MoS? Primary Airports Yes The operator of the 747-8 designates your airport as the primary landing site Alternate Airports No The operator of the 747-8 designates your airport as the [an] alternative landing site when the designated primary airport becomes unavailable or the aircraft itself has an emergency situation 5
Ok, What happens to my MoS? 6
The 6-Step Process 1. Airport operators receiving B747-8 service on an existing airfield area that is less than ADG VI submits a proposed MoS to their FAA Airports Regional Office or Airports District Office. 2. The Airports RO/ADO coordinates the proposed MoS with the other customary regional lines-of-business and collects signed coordination records with submitted comments, solutions, etc. 3. The Airports RO sends the completed coordination package to AAS-100 (Washington, DC) for final determination. 4. AAS-100 reviews the proposed MoS, received inputs, and makes the final determination (signature approved disapproved). 5. AAS-100 returns the original signed MoS back to the Airports RO for their records. 6. Airports RO (or ADO) informs the airport operator of the decision by an official letter. Please forward a copy of your letter to AAS-100 for their records. 3-4 months 7
Accelerated Process Engineering Briefs FAA Airports Regional Offices authorized to use applicable B747-8 Engineering Briefs Your proposal proceeds directly from step #2 to the final step #6 Available engineering briefs: EB #73, addresses taxiway width EB #74, addresses runway width NOTE: Flight Standardization Board and Flight Standards Determinations Changes to EB 8
Background Information for Engineering Brief #73 Use of Non-Standard 75-foot Wide Straight Taxiway Sections for Boeing 747-8 Taxiing Operations 9
Boeing 747-400 Engine Breakaway Exhaust Velocities 10
Comparison: Proposed 747-8 and 747-400 11
72.5 ft Shoulder Edge 12
72.5 ft Shoulder Edge 13
FAA Engineering Brief #73 - B747-8 TAXI OPS Existing overall taxiway width at least 145 feet (ADG V) Added stabilized shoulder comply with AC 150/5300-13, Airport Design, and AC 150/5320-6, Airport Pavement Design and Evaluation Airport operator: Designates taxi routes for 747-8 Takes remedial action(s) when necessary to minimize excessive jet blasts and informs FAA Airports of those corrective action(s) Evaluates taxiway bridge/culvert load bearing capacity for the maximum design taxi weight of the heaviest 747-8 family model Should widen taxiways to the ADG VI design standard wherever repeated excursions from full-strength pavement occur Damage to surfaces, lighting, or signage should be repaired as soon as possible daily inspections 14
Background Information for Engineering Brief #74 Minimum Requirements to Widen Existing 150-foot Wide Runways for Boeing 747-8 Operations 15
Approach Considered Certain Safety Issues Runway Veeroffs Non-aircraft certification parameters Contaminated runway surfaces; Slippery runways Heavy rains and strong, gusty winds Pilot techniques Aircraft mechanical problems Hydraulics Steering Engine Performance Takeoff - jet velocity contours 16
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Santiago de Chile 150-ft [45 m] runway, no paved shoulders Notice location of engines Rotation Just Starting thrust Seconds after takeoff 18
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EB #74 - Boeing 747-8 200-foot wide runway with 40-foot wide stabilized shoulders [ADG VI] Good to Go Convert 150-foot wide runway into a 200-foot wide runway with 40 foot shoulders = total of 280 feet Precautionary Shoulder Inspection Runway edge markings and lighting relocated *********************************************** Wait and See statement from FAA Transport Directorate, Flight Standardization Board, and Flight Standard Service A380 outcome wider 50-ft shoulders than ADG V 35-ft standard European Boeing 747-8 Airport Compatibility Group (BACG) Agreements - US FAA not a member 22
Items Under 6-Step Process Separations Taxiway CL to Taxiway CL Taxiway CL to Fixed/Movable Object Runway CL to Parallel Taxiway CL Table 2-2, FAA Advisory Circular 150/5300-13, Airport Design Other Non-EBs 23
Thank You Qs & As 24