# Presentation: 163350

## Bill Schinstock
Wichita ACO

- Wichita ACO

- Presentation 7

**Example Operator Program **

## Background

- This presentation was originally given by Clay Satterlee, United Airlines Maintenance Staff, at the Asia-Pacific RVSM Seminar in Singapore.
- It describes United Airlines experience with the RVSM approval process in preparation for North Atlantic operations.

## PRESENTATION OVERVIEW

- Qualification Process Flow
- Concerns During Qualification
- Confirmed Aircraft Configuration
- B747 Qualification - by type
- B767 Qualification - by type
- B777 Qualification - by type
- Document Changes
- Training
- RVSM Monitoring
- Application for RVSM Approval
- Aircraft Data to FAA and CMA
- Delivery of new (non RVSM) aircraft through RVSM airspace
- United’s Fleet Today and Tomorrow
- Summary

## CONCERNS DURING QUALIFICATION

- Accuracy of altimeter systems - Need for recalibration?
- Lead times for parts and tooling
- Quick disconnect fittings - inspections
- Availability of altimetry test equipment
- Timely response to request for Computational Fluid Dynamics (CFD) analysis from Boeing
- Need for skin shims due to waviness problems
- Delivery flights through RVSM airspace
- FAA had concern for continued airworthiness

## Reviewed Service Bulletins and Aircraft Avionics equipment to ensure configuration complied with 
	91-RVSM

- 	91-RVSM

**CONFIRMED AIRCRAFT EQUIPMENT**
**        ****AND CONFIGURATION**

## 747-400 Qualification

- Qualified twenty six aircraft for RVSM
- Aircraft after line number 1050 - RVSM qualified from factory

## 747-400 Qualification: Service Bulletins

- B747-53-2393  Visually Inspect Pitot-Static Probe/AOA Sensor
- Twenty six aircraft
- One labor hour each
- B747-53-2394  Inspect/Measure Skin Waviness
- Twelve aircraft
- Twelve labor hours each.
- Fifty percent required CFD analysis from Boeing
- None required skin rework

## 747-400 Qualification: Service Bulletins

- B747-53-2398  Replace Probes with Nickel Plated Probes
- Twelve aircraft
- Twelve labor hours each
- MAINTENANCE PROGRAM CHANGES:
- Visual inspection of skin at pitot tubes every 2A, Max 1000 Hrs

## 767 Qualification

- Qualified thirty one aircraft for RVSM
- Aircraft after line number 561 - RVSM qualified from factory

## 767 Qualification: Service Bulletin

- B767-SL-02-011  Qualification of 767 Airplanes for RVSM
- Replaced Air Data Computers on eight aircraft
- Rewired aircraft for SSEC corrections on eight aircraft
- Replaced Pitot probes on thirty one aircraft
- Visual inspection of critical area on thirty one aircraft
- Found no damage in critical area
- MAINTENANCE PROGRAM CHANGES:
- Visual inspection of skin at pitot tubes every 2A, Max 1000 Hrs

## 777 Qualification

- Qualified eighteen aircraft for RVSM
- Aircraft after line number 57 - RVSM qualified from factory
- Service Bulletins:
- 777-SL-02-002  Qualification of 777 aircraft for RVSM
- 777-53-007  Visual inspection of fuselage - critical area
- Eighteen aircraft
- 1 labor hour each
- No damage found
- MAINTENANCE PROGRAM CHANGES:
- Visual inspection of skin at pitot tubes every 2A, Max 1000 Hrs

## DOCUMENT CHANGES

- CHANGE OF MM - QUICK DISCONNECT FITTINGS: Per 91-RVSM
- If a quick disconnect is broken for any reason, one of the following must be done.
- A. Visual inspection by second qualified mechanic with signoff by both mechanics.
- B. A low range leak check of the affected system.
- If both quick disconnects are broken for any reason, a low range leak check must be done.

## DOCUMENT CHANGES

- INTERNAL DOCUMENTS
- New procedure on how to notify FAA of discrepant aircraft and remove an aircraft from RVSM authority.
- MEL CHANGES
- Special equipment requirements for RVSM

## TRAINING

- Recurrent training includes:
- RVSM background
- Aircraft Avionics equipment and configuration
- Special tooling for skin measurements
- Damage repair in critical areas
- Height keeping verification
- Maintenance program requirements
- Additional Training:
- Alert Bulletins
- Company Newsletter Articles
- Station visits
- Meetings and discussions

## RVSM MONITORING

- GMU monitoring was used on fifteen 767s and three 747s
- HMU monitoring was used on fourteen 767s and eleven 777s
**	**_**Note:**_  monitoring requirements have been reduced since the timeframe of UAL’s application
- 	Current requirements to be discussed in a later briefing.

## CONTENT OF ENGINEERING APPLICATION FOR RVSM APPROVAL 

- 1.O Purpose
- 2.0 Initial In-Service Airworthiness
- Aircraft Equipment
- Airframe Requirements

## APPLICATION FOR RVSM APPROVAL (ENGINEERING)

- 3.0 Continued Airworthiness Compliance
- A. Maintenance Program Data (MPD) Requirements
- (1) Altimetry and Avionics Systems
- (2) Corrosion Prevention and Control
- (3) Structural Inspection
- (4) Maintenance Planning Data (MPD) Revisions
- B. Aircraft Maintenance Manual Requirements
- C. Structural Repair Manual
- D. Maintenance Training Requirements
- E. Air Data Test Equipment Requirements
- F. Maintenance Operating Procedures Manual
- G. Future Aircraft Acquisitions and RVSM Compliance
- H. RVSM Formal ‘F’ Report

## APPLICATION FOR RVSM APPROVAL (ENGINEERING)

- 4.0 Operational Compliance
- 	A. Minimum Equipment List (MEL) 				Requirements
- 	B. Operations Manual Airspeed/Mach 			Restrictions
- 	C. Altimetry Usage/Restrictions
- 	D. 747-400 Altimetry History
- 	E. Height Keeping Verification and Monitoring 		Program
- 	F. Conditions for Removal of RVSM Authority

## APPLICATION FOR RVSM APPROVAL (ENGINEERING)

- A Separate Flight Operational qualification package was submitted to the FAA by United Flight Operations, in Denver.
- This included the flight crew training and dispatch training and flight procedures as well as a copy of the Engineering qualification application.

## SUPPLIED AIRCRAFT DATA TO FAA 

- DATA INCLUDED:
- Name of operator
- Aircraft Make, Model, Series
- Serial Number
- Registration Number
- Transponder code
- RVSM approval date.

## Approval Process Summary

- Reviewed 91-RVSM
- Obtained Funding For Project
- Verified aircraft equipment and Configuration
- Discussed with local FAA CMO, Boeing and other operators
- Ensured RVSM monitoring was completed (GMU and HMU)
- Created Maintenance Program for continued airworthiness
- Modified Aircraft
- Revised Documents
- Provided adequate training to all line stations
- Revised MEL
- Applied for FAA Approval by fleet type- Engineer and Flight Ops
- Supplied aircraft data to FAA for PTRS database

## FINAL NOTE

- Approval achieved for approximately 135 aircraft for North Atlantic and Asia-Pacific operations
- Qualification for RVSM was not as difficult as anticipated