Different Average Static Pressure on the ADIRU 1 and the ADIRU 2
1. Possible Causes
_______________
- ADM-L STATIC PRESSURE (19FP5)
- ADM-R STATIC PRESSURE (19FP4)
- ADM-L STATIC PRESSURE (19FP7)
- ADM-R STATIC PRESSURE (19FP6)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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No specific ARINC Reader
B. Referenced Information
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AMM 34-10-00-170-002 Flushing of the Principal Static Pressure Lines AMM 34-10-00-860-002 ADIRS Start Procedure AMM 34-11-16-000-001 Removal of the Static Probe
(7DA1,7DA2,7DA3,8DA1,8DA2,8DA3) AMM 34-11-16-400-002 Installation of the Static Probe (7DA1,7DA2,7DA3,8DA1,8DA2,8DA3) AMM 34-11-17-000-001 Removal of the Air Data Module (19FP1,19FP2,19FP3,19FP4,19FP5,19FP6, 19FP7,19FP8) AMM 34-11-17-400-001 Installation of the Air Data Module (19FP1,19FP2,19FP3,19FP4,19FP5,19FP6, 19FP7,19FP8) AMM 34-13-00-790-002 Leak Test of the Principal Static and Total Air Data System ASM 34-13/01
3. Fault Confirmation
__________________
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 : 051-099, 106-149, 204-299, 301-399, ∞∞34-11-00∞∞∞∞∞∞∞∞∞∞Page 272
401-499, Aug 01/05 CES
4. Fault Isolation
_______________
A. If the POST FLIGHT REPORT gives the maintenance message ADIRU1 (1FP1)/ ADIRU2 (1FP2):
- do a visual check of the static probes.
(1) If one static probe is damaged :
- replace the defective static probe (Ref. AMM TASK 34-11-16-000-001) and (Ref. AMM TASK 34-11-16-400-002).
(2) If the static probes 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 or the panel 187VU (Ref. ASM 34-13/01)
- compare the static ADM pressure read on these labels:
(a) If one value is different:
- replace the defective static pressure ADM (Ref. AMM TASK 34-11-17-000-001) and (Ref. AMM TASK 34-11-17-400-001).
(b) If the values are the same:
- do the flushing of the static pressure line of the air data module (ADM 4, ADM 5, ADM 6 and ADM 7) (Ref. AMM TASK 34-10-00-170-002)
- do the leak test of the main air data system (CAPT and F/O) (Ref. AMM TASK 34-13-00-790-002).
ADIRU 1 199VC | 19FP4 LABEL 177
pins GG, HH | 19FP5 LABEL 176
|
ADIRU 2 198VC | 19FP6 LABEL 177
pins GG, HH | 19FP7 LABEL 176
B. After the subsequent flight, if the fault continues:
- replace the ADM-L STATIC PRESSURE (19FP5) (Ref. AMM TASK 34-11-17-000-001) and (Ref. AMM TASK 34-11-17-400-001).
C. After the subsequent flight, if the fault continues:
- replace the ADM-R STATIC PRESSURE (19FP4).
D. After the subsequent flight, if the fault continues:
- replace the ADM-L STATIC PRESSURE (19FP7).
E. After the subsequent flight, if the fault continues:
- replace the ADM-R STATIC PRESSURE (19FP6).
「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 : 051-099, 106-149, 204-299, 301-399, ∞∞34-11-00∞∞∞∞∞∞∞∞∞∞Page 273
401-499, Aug 01/05 CES
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399, 401-499,
TASK 34-11-00-810-858
Different Angle of Attack Value on the ADIRU 1 and the ADIRU 2
1. Possible Causes
_______________
- SENSOR-ANGLE OF ATTACK, 1 (3FP1)
- SENSOR-ANGLE OF ATTACK, 2 (3FP2)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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