a320amm1

HIGHLIGHTS __________

REVISION NO. 54 May 01/08

Pages which have been revised are outlined below, together with the Highlights of theRevision

--------------------------------------------------------------------------------------CH/SE/SU C REASON FOR CHANGE EFFECTIVITY PAGES--------------------------------------------------------------------------------------

CHAPTER 08__________

L.E.P. 1- 1 REVISED TO REFLECT THIS REVISION INDICATING NEW,REVISED, AND/OR DELETED PAGEST. OF C. REVISED TO REFLECT THIS REVISION 108-10-00 EFFECTIVITY UPDATED 601- 616 MOD.32115J2257 INCORPORATED 201-201, 203-204, 206-225, FUEL-MANUAL (MAGNETIC) INDICATORS- 234-244, 254-275, 451-475, DELETE ATTIDUDE MONITOR 701-749, SB 28-1106 03 INCORPORATED 201-201, 203-204, 206-225, FUEL - MANUAL MAGNETIC INDICATORS - ATTITUDE 234-244, 254-275, 278-278, MONITOR DELETION 283-283, 286-299, 451-475, 701-749, CORRECTION/ADDITION/AMPLIFICATION 201-225, 227-227, 229-254, ADDED CROSS REFERENCES. 276-299, 426-450, 476-499, 503-549, 551-599, 701-749, EFFECTIVITY UPDATED (THROUGHOUT THE TEXT) 201-225, 227-227, 229-275, 426-475, 551-599, 701-749,

08-21-00 EFFECTIVITY UPDATED 201- 212 EFFECTIVITY UPDATED (THROUGHOUT THE TEXT) ALL

08-22-00 EFFECTIVITY UPDATED 201- 203, EFFECTIVITY UPDATED (THROUGHOUT THE TEXT) 201-225, 227-227, 229-275, 205, 207 426-475, 551-599, 701-749,

08-HIGHLIGHTS of 1 REVISION NO. 54 May 01/08

SROS

CHAPTER 08 __________

LEVELING & WEIGHING

LIST OF EFFECTIVE PAGES _______________________ N, R or D indicates pages which are New, Revised or Deleted respectively Remove and insert the affected pages and complete the Record of Revisions and the Record of Temporary Revisions as necessary

CH/SE/SU C PAGE DATE CH/SE/SU C PAGE DATE CH/SE/SU C PAGE DATE

RECORD 08-22-00 R 202 May01/08OF TEMP. 08-22-00 R 203 May01/08REVISION 08-22-00 204 Nov01/05 08-22-00 R 205 May01/08L.E.P. R 1- 1 May01/08 08-22-00 206 May01/01T. of C. R 1 May01/08 08-22-00 R 207 May01/08 08-22-00 208 Nov01/0508-00-00 1 Aug01/98 08-22-00 209 Nov01/05

08-10-00 R 601 May01/0808-10-00 R 602 May01/0808-10-00 R 603 May01/0808-10-00 R 604 May01/0808-10-00 R 605 May01/0808-10-00 R 606 May01/0808-10-00 R 607 May01/0808-10-00 R 608 May01/0808-10-00 R 609 May01/0808-10-00 R 610 May01/0808-10-00 R 611 May01/0808-10-00 N 612 May01/0808-10-00 N 613 May01/0808-10-00 N 614 May01/0808-10-00 N 615 May01/0808-10-00 N 616 May01/08

08-20-00 1 Feb01/96

08-21-00 R 201 May01/0808-21-00 R 202 May01/0808-21-00 R 203 May01/0808-21-00 R 204 May01/0808-21-00 R 205 May01/0808-21-00 R 206 May01/0808-21-00 R 207 May01/0808-21-00 R 208 May01/0808-21-00 R 209 May01/0808-21-00 R 210 May01/0808-21-00 R 211 May01/0808-21-00 R 212 May01/08

08-22-00 R 201 May01/08

08-L.E.P. Page 1 May 01/08

SROS

CHAPTER 08 __________

LEVELING & WEIGHING

TABLE OF CONTENTS _________________

SUBJECT CH/SE/SU C PAGE EFFECTIVITY _______ ________ _ ____ ___________ LEVELING AND WEIGHING - GENERAL 08-00-00 _______________________________ DESCRIPTION AND OPERATION 1 ALL General 1 ALL

WEIGHING AND BALANCING 08-10-00 ______________________ INSPECTION/CHECK 601 ALL Weighing and Balancing 601 ALL

LEVELING 08-20-00 ________ DESCRIPTION AND OPERATION 1 ALL General 1 ALL

QUICK LEVELING 08-21-00 MAINTENANCE PRACTICES 201 ALL Quick Leveling Using the Attitude 201 201-225, 227-227 Monitor 229-254, 276-299 426-450, 476-499 503-549, 551-599 701-749, Quick Leveling with a Spirit Level 204 ALL in the FWD Cargo Compartment Quick Leveling with a Spirit Level 207 ALL in the Passenger Compartment Quick Leveling Procedure with the 210 ALL ADIRU

PRECISE LEVELING 08-22-00 MAINTENANCE PRACTICES 201 ALL Precise Leveling 201 ALL

08-CONTENTS Page 1 May 01/08R SROS

LEVELING AND WEIGHING - GENERAL - DESCRIPTION AND OPERATION ___________________________________________________________

1. General _______ This chapter covers the following operations: - WEIGHING AND BALANCING - LEVELINGR

�� EFF : ALL � Page 1�� 08-00-00 � � Aug 01/98 � � � � SROS

WEIGHING AND BALANCING - INSPECTION/CHECK _________________________________________

TASK 08-10-00-200-001

Weighing and Balancing

1. Reason for the Job __________________

This procedure gives data to find the operating empty weight of the aircraft and to calculate the center of gravity.

NOTE : You can do this operation with the shock absorbers and the tires ____ deflated.

NOTE : To get accurate results, we recommend to weigh the aircraft on a ____ level area in a hangar with: - the hangar doors and windows closed. - the hangar heating, air conditioning and ventilation systems stopped. Wind and air flows prevent accurate results.

2. Job Set-up Information ______________________

A. Fixtures, Tools, Test and Support Equipment

------------------------------------------------------------------------------- REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------

No specific access platform 3.5 m (11 ft. 6 in.)

B. Referenced Information

------------------------------------------------------------------------------- REFERENCE DESIGNATION -------------------------------------------------------------------------------

07-11-00-582-003 Jacking of the Aircraft for Weighing on Landing Gear Jacks 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations 08-21-00-200-001 Quick Leveling Using the Attitude MonitorR 08-21-00-200-001 Quick Leveling with a Spirit Level in the FWD CargoR CompartmentR 08-21-00-200-001 Quick Leveling Procedure with the ADIRUR 08-21-00-200-001 Quick Leveling with a Spirit Level in the PassengerR Compartment 09-10-00-584-001 Towing

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09-10-00-584-002 Towing with the Nose Gear from the Front 12-11-28-650-003 Pressure Refuel with Automatic Control 12-11-28-650-004 Pressure Refuel with Manual Control 12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 12-12-29-611-002 Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart 12-13-24-612-041 Do Quick Oil Servicing - Filling of the Integrated Drive Generator (IDG) with Oil for Oil Complement after Level Check 12-13-49-612-001 Check APU Oil Level and Replenish 12-13-79-610-002 Check oil level and replenish Check Pop Out Indicator of EMCD (Electrical Master Chip Detector) 12-14-32-614-003 Check Charge Pressure of Main Landing Gear Shock Absorber 12-14-32-614-004 Check NLG Shock Absorber Charge Pressure 27-50-00-866-009 Retraction of the Flaps on the Ground 27-60-00-866-002 Extension-Retraction of the Spoilers for Maintenance 27-80-00-866-005 Retracting the Slats on the Ground 27-80-00-866-008 Manual Retraction of the Slats 29-30-00-200-002 Check of the Reservoir Quantity Indication on the ECAM Display Unit 32-12-00-410-001 Close the Main Gear Doors after Access 32-22-00-410-001 Nose Gear Doors - Ground Doors Closing 32-41-00-210-003 Inspection/Check of the Pressure of Tires 52-10-00-010-001 Opening of the Passenger/Crew Door 52-10-00-410-001 Closing of the Passenger/Crew Door 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 71-00-00-710-002 Wet Motoring Check WBM 1-20-06 WBM 1-20-07 WBM 1-80-04 WBM 1-80-05

3. Job Set-up __________

Subtask 08-10-00-010-051

A. Get Access

(1) Put an access platform in position in front of the access door 831.

(2) Open the access door 831 (Ref. TASK 52-10-00-010-001).

�� EFF : ALL � 02�� 08-10-00 � � May 01/08 � �R � � SROS

Subtask 08-10-00-210-053

B. Check of the Fluid Levels

(1) Do a check of the engine oil level and refill if necessary (Ref. TASK 12-13-79-610-002).

(2) Do a check of the APU oil level and refill if necessary (Ref. TASK 12-13-49-612-001).

(3) Do a check of the hydraulic fluid level in the systems (Ref. TASK 29- 30-00-200-002) and refill if necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).

(4) Do a check of the IDG oil level and refill if necessary (Ref. TASK 12-13-24-612-041).

(5) Make sure that all the fire extinguishers, oxygen masks and safety belts are in position.

Subtask 08-10-00-614-050

C. Check of the Pressure of the MLG and NLG Shock Absorbers and Check of the Tire Pressure

(1) Make sure that the pressure of the shock absorbers is correct: - for the MLG (Ref. TASK 12-14-32-614-003), - for the NLG (Ref. TASK 12-14-32-614-004).

(2) Make sure that the tire pressure is correct (Ref. TASK 32-41-00-210- 003).

Subtask 08-10-00-010-050

D. Removal of Compoments

(1) Remove all tools and protection devices from the aircraft.

Subtask 08-10-00-210-051

E. Aircraft Maintenance Configuration

(1) Retract the spoilers (Ref. TASK 27-60-00-866-002).

(2) Retract the flaps (Ref. TASK 27-50-00-866-009).

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(3) Retract the slats (Ref. TASK 27-80-00-866-005) or (Ref. TASK 27-80- 00-866-008).

(4) Make sure that all flight control surfaces are in the neutral position.

(5) Externally and internally examine the aircraft to make sure that all the weighing conditions are correct (galley equipmemt, ground power units connected, etc.).

R **ON A/C 201-225, 227-227, 229-275, 426-475, 551-599, 701-749,

Subtask 08-10-00-650-050

F. Defueling the Aircraft

(1) Defuel the aircraft for the weight and balance procedure (Ref. WBM 1- 20-07).

**ON A/C 276-299, 476-499, 503-549,

Subtask 08-10-00-650-050-A

F. Defueling the Aircraft

(1) Defuel the aircraft for the weight and balance procedure (Ref. WBM 1- 20-06).

**ON A/C ALL

Subtask 08-10-00-410-050

G. Close Access

(1) Close the NLG doors if opened (Ref. TASK 32-22-00-410-001).

(2) Close the MLG doors if opened (Ref. TASK 32-12-00-410-001).

(3) Close the doors of aft and forward cargo compartments if opened (Ref. TASK 52-30-00-860-002).

(4) Close all the access doors/panels if opened.

(5) Close the passenger/crew doors (Ref. TASK 52-10-00-410-001).


Subtask 08-10-00-584-050

H. Towing the Aircraft

(1) Tow the aircraft to the area where you will weigh it (Ref. TASK 09- 10-00-584-002).

Subtask 08-10-00-860-050

J. Aircraft Maintenance Configuration

(1) Release the brakes.

4. Procedure _________

R **ON A/C 201-225, 551-599,

Subtask 08-10-00-220-050-B

A. Weigh the Aircraft and Calculate the Position of the Center of Gravity

NOTE : You can weigh the aircraft with: ____ - the aircraft on jacks - the aircraft on its wheels - the aircraft on landing gear jacks

(1) Weigh the aircraft on jacks and calculate the position of the center of gravity.

NOTE : To weigh the aircraft on jacks, the aircraft must have a pitch ____ attitude of zero deg..

NOTE : You can refer to the Weight and Balance Manual to weigh the ____ aircraft and calculate the position of the center of gravity (Ref. WBM 1-80-05).

NOTE : You can do this procedure with load cells on each jack or with ____ platform scales under each jack. The load cells or the platform scales must have a capacity of: - 7000 daN min. at nose landing gear - 30000 daN min. at main landing gear

(a) Put the jacks and the weighing devices in position.


R (b) Jack up the aircraft and make the aircraft level (Ref. TASK 08-R 21-00-200-001) or (Ref. TASK 08-21-00-200-001) or (Ref. TASK 08-R 21-00-200-001) or (Ref. TASK 08-21-00-200-001).

(c) Calculate the aircraft weight W: W = RA + RV W = aircraft weight RA = reaction that you measure at the forward jack point.

NOTE : If you use platform scales, you must subtract the weight ____ of the jack.

RV = sum of the reactions that you measure at the wing jack points.

NOTE : If you use platform scales, you must subtract the weight ____ of the jacks.

RC = Reference Chord

(d) Calculate the position of the center of gravity. To do this, use the formula: 54.98 RV - 260.34 RA CG (% RC) = ------------------- W

(e) Lower the aircraft on its wheels (Ref. TASK 07-11-00-586-002).

(2) Weigh the aircraft on its wheels and calculate the position of the center of gravity.

(a) Refer to the Weight and Balance Manual to weigh the aircraft and calculate the position of the center of gravity (Ref. WBM 1-80- 04).

(3) Weigh the aircraft on landing gear jacks and calculate the position of the center of gravity.



(b) Jack up the aircraft (Ref. TASK 07-11-00-582-003).

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(c) Refer to the Weight and Balance Manual to weigh the aircraft and calculate the position of the center of gravity (Ref. WBM 1-80- 05).

R **ON A/C 227-227, 229-254, 426-450, 701-749,

Subtask 08-10-00-220-050












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**ON A/C 276-299, 476-499, 503-549,

Subtask 08-10-00-220-050-A













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R **ON A/C 201-201, 203-204, 206-225, 451-475,

R Post SB 28-1106 For A/C 201-201,203-204,206-225,

R Subtask 08-10-00-220-050-E

R A. Weigh the Aircraft and Calculate the Position of the Center of Gravity

R NOTE : You can weigh the aircraft with: ____R - the aircraft on jacksR - the aircraft on its wheelsR - the aircraft on landing gear jacks


R (1) Weigh the aircraft on jacks and calculate the position of the centerR of gravity.

R NOTE : To weigh the aircraft on jacks, the aircraft must have a pitch ____R attitude of zero deg..

R NOTE : You can refer to the Weight and Balance Manual to weigh the ____R aircraft and calculate the position of the center of gravityR (Ref. WBM 1-80-05).

R NOTE : You can do this procedure with load cells on each jack or with ____R platform scales under each jack.R The load cells or the platform scales must have a capacity of:R - 7000 daN min. at nose landing gearR - 30000 daN min. at main landing gear

R (a) Put the jacks and the weighing devices in position.

R (b) Jack up the aircraft and make the aircraft level (Ref. TASK 08-R 21-00-200-001) or (Ref. TASK 08-21-00-200-001) or (Ref. TASK 08-R 21-00-200-001).

R (c) Calculate the aircraft weight W: W = RA + RVR W = aircraft weightR RA = reaction that you measure at the forward jack point.

R NOTE : If you use platform scales, you must subtract the weight ____R of the jack.

R RV = sum of the reactions that you measure at the wing jackR points.

R NOTE : If you use platform scales, you must subtract the weight ____R of the jacks.

R RC = Reference Chord

R (d) Calculate the position of the center of gravity.R To do this, use the formula:R 54.98 RV - 260.34 RAR CG (% RC) = -------------------R W

R (e) Lower the aircraft on its wheels (Ref. TASK 07-11-00-586-002).

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R (2) Weigh the aircraft on its wheels and calculate the position of theR center of gravity.

R (a) Refer to the Weight and Balance Manual to weigh the aircraft andR calculate the position of the center of gravity (Ref. WBM 1-80-R 04).

R (3) Weigh the aircraft on landing gear jacks and calculate the positionR of the center of gravity.



R (b) Jack up the aircraft (Ref. TASK 07-11-00-582-003).

R (c) Refer to the Weight and Balance Manual to weigh the aircraft andR calculate the position of the center of gravity (Ref. WBM 1-80-R 05).

R **ON A/C 234-244, 254-275, 701-749,

R Post SB 28-1106 For A/C 234-244,254-254,701-749,

R Subtask 08-10-00-220-050-C




R NOTE : To weigh the aircraft on jacks, the aircraft must have a pitch ____R attitude of zero deg.


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R NOTE : You can do this procedure with load cells on each jack or with ____R platform scales under each jack.

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R The load cells or the platform scales must have a capacity of:R - 7000 daN min. at nose landing gearR - 30000 daN min. at main landing gear




R **ON A/C 278-278, 283-283, 286-299,

R Post SB 28-1106 For A/C 278-278,283-283,286-299,

R Subtask 08-10-00-220-050-D




R NOTE : To weigh the aircraft on jacks, the aircraft must have a pitch ____R attitude of zero deg..





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**ON A/C ALL

5. Close-up ________

Subtask 08-10-00-650-051

A. Refuel the Aircraft

(1) Refuel the aircraft after weighing (Ref. TASK 12-11-28-650-003) (Ref. TASK 12-11-28-650-004).

Subtask 08-10-00-710-050

B. Wet Motoring Check

(1) Do a wet motoring check (Ref. TASK 71-00-00-710-002).

Subtask 08-10-00-584-051

C. Aircraft Towing

(1) Tow the aircraft from the weighing area (Ref. TASK 09-10-00-584-001).

(2) Make sure that the work area is clean and clear of tool(s) and other items.


LEVELING - DESCRIPTION AND OPERATION ____________________________________

1. General _______ This section provides information related to the leveling of the aircraft. It is divided as follows: - QUICK LEVELING - PRECISE LEVELING

�� EFF : ALL � Page 1�� 08-20-00 � � Feb 01/96 � � � � SROS

QUICK LEVELING - MAINTENANCE PRACTICES ______________________________________

R **ON A/C 201-225, 227-227, 229-254, 276-299, 426-450, 476-499, 503-549,R 551-599, 701-749,

TASK 08-21-00-200-001

Quick Leveling Using the Attitude Monitor


There is an alternative method for this procedure. This task gives one of the methods. For the other method, refer to the other task in this Page Block.




No specific access platform 1.8 m (5 ft. 11 in.)



07-11-00-581-001 Lifting for Aircraft Maintenance Operations 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations 08-21-00-991-001 Fig. 201

3. Job Set-up __________

Subtask 08-21-00-010-050

A. Get Access

(1) Put an access platform in position.

(2) Open the access panel 192MB

��R �EFF : ALL � Page 201�� 08-21-00 � � May 01/08 � � � � SROS

Subtask 08-21-00-581-050

B. Aircraft Lifting

CAUTION : YOU MUST NOT LIFT THE AIRCRAFT WITH THE SAFETY STAY. _______

(1) Lift the aircraft (Ref. TASK 07-11-00-581-001).

NOTE : Do not put the safety stay in position before you make the ____ aircraft level.


Subtask 08-21-00-210-051

A. Aircraft Leveling (Ref. Fig. 201/TASK 08-21-00-991-001)

(1) Operate the jacks of the aircraft to move the bubble to the D4 position.

NOTE : The D4 position relates to a longitudinal angle of 0⁰ and ____ transverse angle of 0⁰.

(2) Put the safety stay in position between FR73 and FR74.

5. Close-up ________

Subtask 08-21-00-586-050

A. Aircraft Lowering

(1) Lower the aircraft (Ref. TASK 07-11-00-586-002).

Subtask 08-21-00-410-050

B. Close Access

(1) Close the access door 192MB.

(2) Remove the access platform(s).


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Position of the Trim Indicator Figure 201/TASK 08-21-00-991-001

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R **ON A/C ALL

TASK 08-21-00-200-001- 01

Quick Leveling with a Spirit Level in the FWD Cargo Compartment






No specific spirit level No specific access platform 2.0 m (6 ft. 7 in.)



07-11-00-581-001 Lifting for Aircraft Maintenance Operations 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump

3. Job Set-up __________

Subtask 08-21-00-010-051

A. Get Access

(1) Put an access platform in position below the FWD cargo-compartment door.

(2) Open the FWD cargo-compartment door (Ref. TASK 52-30-00-860-001).


(3) Get a spirit level to do the leveling procedure.

(4) Go into the FWD cargo compartment.

NOTE : To do this procedure two persons are necessary ____ - one in the cargo compartment to move the spirit level - the other near the aircraft to operate the jacks.

Subtask 08-21-00-581-051

B. Aircraft Lifting





Subtask 08-21-00-581-052

A. Leveling of the Aircraft

(1) Put the spirit level on a track, in the Y axis, perpendicular to the tracks, and operate the hydraulic jack below the wing to get the transverse alignment.

(2) Put the spirit level a track, in the X axis, and operate the hydraulic jack below the fuselage to get the longitudinal alignment.

(3) When you have done the longitudinal alignment, do a check of the transverse alignment.


5. Close-up ________

Subtask 08-21-00-586-051


(1) Lower the aircraft on its wheels (Ref. TASK 07-11-00-586-002).


Subtask 08-21-00-410-051

B. Close Access


(2) Close the FWD cargo-compartment door (Ref. TASK 52-30-00-860-002).



TASK 08-21-00-200-001- 03

Quick Leveling with a Spirit Level in the Passenger Compartment






No specific spirit level No specific access platform 3.5 m (11 ft. 6 in.)



07-11-00-581-001 Lifting for Aircraft Maintenance Operations 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations 52-10-00-010-001 Opening of the Passenger/Crew Door 52-10-00-410-001 Closing of the Passenger/Crew Door

3. Job Set-up __________

Subtask 08-21-00-010-052

A. Get Access

(1) Put an access platform in position below the FWD passenger/crew door.

(2) Open the FWD passenger/crew door (Ref. TASK 52-10-00-010-001).

(3) Get a spirit level to do the leveling procedure.


(4) Go into the passenger compartment.

NOTE : To do this procedure two persons are necessary ____ - one in the passenger compartment to move the spirit level - the other near the aircraft to operate the jacks.

Subtask 08-21-00-581-055

B. Aircraft Lifting





Subtask 08-21-00-581-056


(1) Put the spirit level on a seat track, in the Y axis, and operate the hydraulic jack below the wing to get the transverse alignment.

(2) Put the spirit level a on seat track, in the X axis, and operate the hydraulic jack below the fuselage to get the longitudinal alignment.



5. Close-up ________

Subtask 08-21-00-586-053


(1) Lower the aircraft on its wheels (Ref. TASK 07-11-00-586-002).


Subtask 08-21-00-410-052

B. Close Access


(2) Close the FWD passenger/crew door (Ref. TASK 52-10-00-410-001).



TASK 08-21-00-200-001- 02

Quick Leveling Procedure with the ADIRU




A. Referenced Information


07-11-00-581-001 Lifting for Aircraft Maintenance Operations 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations 31-36-00-740-008 Access to the Parameter Call-Up Menus 34-10-00-860-004 IR Alignment Procedure 34-10-00-860-005 ADIRS Stop Procedure

3. Job Set-up __________

Subtask 08-21-00-860-050

A. Aircraft Maintenance Configuration

(1) Do an IR alignment procedure (Ref. TASK 34-10-00-860-004).

(2) Get access to the parameter call-up menus (Ref. TASK 31-36-00-740- 008).

(3) On the MCDU keypad enter the alpha call-up code into the scratchpad: - PTCH for the pitch angle to do a check of the longitudinal alignement, - ROLL for the roll angle to do a check of the transverse alignement.



Subtask 08-21-00-581-054



(1) Lift and level the aircraft (Ref. TASK 07-11-00-581-001).


(2) Read the pitch and roll angles at the bottom of the display (scratchpad).

NOTE : Angle value: ____ - A positive degree value angle of the roll means that the right wing is down. - A negative degree value angle of the roll means that the left wing is down. - A positive degree value angle of the pitch means that the nose of the aicraft is up. - A negative degree value angle of the pitch means that the nose of the aircraft is down.

(3) Operate the hydraulic jack below the wing at rib 9 to get the transverse alignment.

(4) Operate the hydraulic jack below the fuselage at FR8 to get the longitudinal alignment.



5. Close-up ________

Subtask 08-21-00-586-052

A. Lowering of the Aircraft



Subtask 08-21-00-860-051

B. Put the aircraft back to its initial configuration.

(1) Do the ADIRS stop procedure (Ref. TASK 34-10-00-860-005)


PRECISE LEVELING - MAINTENANCE PRACTICES ________________________________________

TASK 08-22-00-200-001

Precise Leveling


Self Explanatory




No specific safety barriers No specific sight tube No specific access platform 2.40 m (7 ft. 10 in.) 98D08103500000 1 SIGHTING RODS SET



07-11-00-581-001 Lifting for Aircraft Maintenance Operations 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations

R **ON A/C 201-225, 227-227, 229-275, 426-475, 551-599, 701-749,

08-22-00-991-001 Fig. 201

**ON A/C 276-299, 476-499, 503-549,

08-22-00-991-001-A Fig. 201A

**ON A/C ALL

08-22-00-991-002 Fig. 202



R **ON A/C 201-225, 227-227, 229-275, 426-475, 551-599, 701-749,

08-22-00-991-003 Fig. 203

**ON A/C 276-299, 476-499, 503-549,

08-22-00-991-003-A Fig. 203A

**ON A/C ALL

3. Job Set-up __________

Subtask 08-22-00-010-050

A. Get Access

(1) Put the access platform in position.

(2) Put the safety barriers in position.

Subtask 08-22-00-941-050

B. Aircraft Reference Axes

R **ON A/C 201-225, 227-227, 229-275, 426-475, 551-599, 701-749,

(Ref. Fig. 201/TASK 08-22-00-991-001)

**ON A/C 276-299, 476-499, 503-549,

(Ref. Fig. 201A/TASK 08-22-00-991-001-A)

**ON A/C ALL

(1) Longitudinal axis XX�: Parallel to the line made by the points 11 and 12 and contained in the plane made by the points 20L, 20R and 22R.


Aircraft Reference Axes Figure 201/TASK 08-22-00-991-001


Aircraft Reference Axes Figure 201A/TASK 08-22-00-991-001-A

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(2) Lateral axis YY�: Perpendicular to the axis XX� and parallel to the line made by the points 20L and 20R.

(3) Vertical axis ZZ�: perpendicular to the axes XX� and YY�.

Subtask 08-22-00-582-050

C. Aircraft Lifting


(1) Lift the aircraft on the jacks (Ref. TASK 07-11-00-581-001)


Subtask 08-22-00-480-050

D. Put the Sighting Rods and the Sight Tube in Position

(1) Put the sighting rods SIGHTING RODS SET (98D08103500106) and (98D08103500107) at points 2L and 2R on the wing lower surface.

(2) Put the sighting rods SIGHTING RODS SET (98D08103500101) and (98D08103500102) at points 11 and 12 under the fuselage.

(3) Put the sight tube in position near the aircraft. The sight point is located on the Z axis at -3500 mm (-137.7953 in.) from the datum plane. (Ref. Fig. 202/TASK 08-22-00-991-002)


Subtask 08-22-00-210-050

A. Aircraft Leveling

R **ON A/C 201-225, 227-227, 229-275, 426-475, 551-599, 701-749,

(Ref. Fig. 203/TASK 08-22-00-991-003)

**ON A/C 276-299, 476-499, 503-549,

(Ref. Fig. 203A/TASK 08-22-00-991-003-A)


R Location of the Sight TubeR Figure 202/TASK 08-22-00-991-002


Transverse and Longitudinal Alignment Figure 203/TASK 08-22-00-991-003


Transverse Alignment Figure 203A/TASK 08-22-00-991-003-A

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**ON A/C ALL

(1) Operate the hydraulic jacks installed at RIB8 to align points 2L and 2R with the sight tube. You get the tranverse alignment.

(2) Operate the hydraulic jacks installed at FR8 to align points 11 and 12 with the sight tube. You get the longitudinal alignment.


(4) Put the safety stay in position between FR73 an FR74.

5. Close-up ________

Subtask 08-22-00-410-050

A. Close Access

(1) Remove the sighting rods.

(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.


Subtask 08-22-00-586-050

B. Aircraft Lowering


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