- 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:
(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).
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399, 401-499,
5. Close-up
________
**ON A/C 001-049, 051-099, 101-149, 201-299,
A. Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005)
「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 282
301-399, 401-499, Aug 01/05 CES
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399, 401-499,
TASK 34-11-00-810-861
Different Angle of Attack Value on the three ADIRUs
1. Possible Causes
_______________
- SENSOR-ANGLE OF ATTACK, 1 (3FP1)
- 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 34-11-19-000-001 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)
AMM 31-36-00 P.Block 001 AIDS INTERCONNECTION ((FDIMU, DAR))
ASM 34-13/01
R **ON A/C 051-099, 106-149, 211-299, 301-399, 401-499,
34-11-00-991-001 Fig. 201
34-11-00-991-002 Fig. 202
「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 283
301-399, 401-499, Aug 01/05 CES
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399, 401-499,
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.
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, 211-299, 301-399, 401-499,
A. Solution 1: with ARINC Reader. If the POST FLIGHT REPORT gives the maintenance message AOA SNSR1 (3FP1)/ SNSR2 (3FP2)/SNSR3 (3FP3):
- do a visual check of the SENSOR-ANGLE OF ATTACK, 1 (3FP1), 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 (3FP1), (3FP2) and (3FP3) to the down position
- manually turn the angle of attack sensors (3FP1), (3FP2) and (3FP3) to the up position
- compare the angle of attack values (between -35 deg. and -34.5 deg. for the down position and between +84.5 deg. and +85 deg. for the up position) read on label 221:
ADIRU 1 199VC 3FP1
pins GG, HH
ADIRU 2 198VC 3FP2
pins GG, HH
ADIRU 3 199VC 3FP3
pins y, z
「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 284
301-399, 401-499, Aug 01/05 CES
(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).
(b) If the values are corrects: 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(33)
