R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399, 401-499,
TASK 34-11-00-810-860
Different Angle of Attack Value on the ADIRU 2 and the ADIRU 3
1. Possible Causes
_______________
- SENSOR-ANGLE OF ATTACK, 2 (3FP2)
- SENSOR-ANGLE OF ATTACK, 3 (3FP3)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific ARINC Reader
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-36-00-740-008 Access to the Parameter Call-Up Menus AMM 34-10-00-860-002 ADIRS Start Procedure AMM 34-10-00-860-005 ADIRS Stop Procedure AMM 34-11-19-000-001 Removal of the Angle of Attack Sensor (3FP1, 3FP2,
3FP3) AMM 34-11-19-400-001 Installation of the Angle of Attack Sensor (3FP1, 3FP2, 3FP3) ASM 34-13/01
3. Fault Confirmation
__________________ R **ON A/C 051-099, 106-149, 204-299, 301-399, 401-499,
A. Test
Not applicable, you cannot confirm this fault on the ground.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 201-299, ∞∞34-11-00∞∞∞∞∞∞∞∞∞∞Page 280
301-399, 401-499, Aug 01/05 CES
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399, 401-499,
4. Fault Isolation
_______________
R **ON A/C 051-099, 106-149, 204-299, 301-399, 401-499,
A. Solution 1: aircraft without AIDS. If the POST FLIGHT REPORT gives the maintenance message AOA SENSOR2 (3FP2)/ AOA SENSOR3 (3FP3):
- do a visual check of the SENSOR-ANGLE OF ATTACK, 2 (3FP2) and SENSOR-ANGLE OF ATTACK, 3 (3FP3).
(1) If one angle of attack sensor is damaged:
- replace the defective angle of attack sensor (Ref. AMM TASK 34-11-19-000-001) and (Ref. AMM TASK 34-11-19-400-001).
(2) If the angle of attack sensors are not damaged:
- do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002)
- connect the ARINC Reader to the test connector 198VC on the panel 188VU and to the test connector 199VC on the panel 187VU (Ref. ASM 34-13/01)
- manually turn the angle of attack sensors (3FP2) and (3FP3) to the down position
- manually turn the angle of attack sensors (3FP2) and (3FP3) to the up position
- compare the angle of attack values (between -35. and -34.5. for the down position and between +84.5. and +85. for the up position) read
on label 221:
ADIRU 2 198VC 3FP2
pins GG, HH
ADIRU 3 199VC 3FP3
pins y, z
(a) If one value is different:
- replace the defective angle of attack sensor (Ref. AMM TASK 34-11-19-000-001) and (Ref. AMM TASK 34-11-19-400-001).
**ON A/C 001-049, 051-099, 101-149, 201-299,
B. Solution 2: aircraft with AIDS: If the POST FLIGHT REPORT gives the maintenance message AOA SENSOR 3FP2 -AOA SENSOR 3FP3 DISAGREE or AOA SENSOR2 (3FP2)/AOA SENSOR3 (3FP3):
- do a visual check of the SENSOR-ANGLE OF ATTACK, 2 (3FP2) and SENSOR-ANGLE OF ATTACK, 3 (3FP3).
(1) If one angle of attack sensor is damaged:
- replace the defective angle of attack sensor (Ref. AMM TASK 34-11-19-000-001) and (Ref. AMM TASK 34-11-19-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 201-299, ∞∞34-11-00∞∞∞∞∞∞∞∞∞∞Page 281
301-399, 401-499, Aug 01/05 CES (2) If the angle of attack sensors are not damaged:
- do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002)
- do the paragraph related to the Parameter Label Call-Up via MCDU of the Access to the Parameter Call-Up Menus procedure (Ref. AMM TASK 31-36-00-740-008)
- manually turn the angle of attack sensors (3FP2) and (3FP3) to the down position
- manually turn the angle of attack sensors (3FP2) and (3FP3) to the up position 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 导航 NAVIGATION 1(32)
