W DOC AIRBUS | AMM A320F

Check of the Load-Report Parameter after Hard/Overweight Landing or Excessive Turbulence

TASK 31-37-00-200-001-A
Check of the Load-Report Parameter after Hard/Overweight Landing or Excessive Turbulence

1. Reason for the Job
This procedure is to help you to read the load-report print-out.
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TASK 05-51-11-200-004-B
Inspections After a Hard Landing or a Hard Overweight Landing for Aircraft with Enhanced DMU/FDIMU Load Report 15
TASK 05-51-11-200-004-C
Inspections After a Hard Landing or a Hard Overweight Landing for Aircraft with FDIMU Load Report 15 included in Software 10TVSW2 or 10TVSW5
TASK 05-51-17-200-001-A
Inspection after In-flight Excessive Load Factor due to Turbulence or Maneuver or in Excess of VMO/MMO
TASK 05-51-44-200-001-A
Inspection after Aircraft Operation with High Lateral Acceleration
TASK 31-33-00-710-009-A
Readout Procedure of the Digital Flight Data Recorder
TASK 31-33-00-710-009-B
Readout Procedure of the Digital Flight Data Recorder
TASK 31-36-00-740-010-A
Printout of the Stored Reports
TASK 31-36-00-00-01
AIDS INTERCONNECTION (DMU, DAR) - DESCRIPTION AND OPERATION
TASK 31-36-00-00-02
AIDS INTERCONNECTION (DMU, DAR) - DESCRIPTION AND OPERATION
TASK 31-37-51-00
AIDS - STRUCTURE REPORTS - DESCRIPTION AND OPERATION
F Load-Report Print-Out - Description ** ON A/C NOT FOR ALL
F Load Report - Event Sequence
F Load-Report Print-Out - Description ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 31-37-00-860-050-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the applicable load-report print-out is available.
   (2) If not, check if the related report is available in the DMU/FDIMU memory and do a print out (Ref. AMM TASK 31-36-00-740-010).
NOTE: Trigger code 1000 is a manual report request. It can not be used for a confirmation of a hard/overweight landing or excessive turbulence. Trigger codes 2000 and 3XXX are not used in report 15.
4. Procedure
Subtask 31-37-00-210-050-B ** ON A/C NOT FOR ALL
A. Check of the Load Report Parameter after Hard/Overweight Landing
   (1) Do a check of the report lines CE, E1, S3 and S2/T2.
F Load-Report Print-Out - Description ** ON A/C NOT FOR ALL
F Load Report - Event Sequence ** ON A/C NOT FOR ALL
NOTE: When there are several valid trigger conditions, the minor triggered code has priority and is the only one printed on the report.
The values of the report lines CE, E1, S3 and S2/T2 have to be crosschecked with the AMM 05-51-11.
NOTE: The Gross Weight Limit (GWL) value stored in the DMU database does not always agree with the Maximum Landing Weight (MLW). We recommend to set the GWL value in line with the MLW (Ref. AMM D/O 31-36-00-00).
The list that follows shows the trigger codes and the event that causes the print-out of the load report during a hard/overweight landing:
  • 4100: Excessive Radio Altitude Rate (RALR)
  • 4400: Excessive Normal Acceleration (VRTA) (compared to the limit at landing) - during +/- 0.5 seconds before and after landing
  • 4500: Excessive Normal Acceleration (VRTA) (compared to the limit at landing with bounce) - during +/- 0.5 seconds at landing (VRTA > VRTAL1.2) or at bounce (VRTA > VRTAL1.3)
  • 4800: Excessive Gross Weight (GW) (compared to Radio Altitude Rate (RALR) - at dataset time at landing
  • 4900: Excessive Gross Weight (GW) - compared to Normal Acceleration (VRTA) - during +/- 0.5 seconds before and after landing.
   (2) For additional information refer to (Ref. AMM TASK 05-51-11-200-004) and to the description of the load reports (Ref. AMM D/O 31-37-51-00).
   (3) If you are not sure that the load report values are correct, do a download of the DFDR data (Ref. AMM TASK 31-33-00-710-009) and a DFDR data analysis to make sure that the values are correct.
Subtask 31-37-00-210-050-C ** ON A/C NOT FOR ALL
A. Check of the Load Report Parameter after Hard/Overweight Landing
   (1) Do a check of the report.
F Load-Report Print-Out - Description ** ON A/C NOT FOR ALL
NOTE: When there are several valid trigger conditions, the minor triggered code has priority and is the only one printed on the report.
Refer to (Ref. AMM TASK 05-51-11-200-004) to compare the values of report.
NOTE: The Gross Weight Limit (GWL) value stored in the DMU database does not always agree with the Maximum Landing Weight (MLW). We recommend to set the GWL value in line with the MLW (Ref. AMM D/O 31-36-00-00).
The list that follows shows the trigger codes and the event that causes the print-out of the load report during a hard/overweight landing:
  • 4310: Overweight red bounce hard landing
  • 4320: Overweight amber bounce hard landing
  • 4410: Overweight red hard landing
  • 4420: Overweight amber hard landing
  • 4510: Red bounce hard landing
  • 4520: Amber bounce hard landing
  • 4610: Red hard landing
  • 4620: Amber hard landing.
   (2) For additional information refer to (Ref. AMM TASK 05-51-11-200-004) and to the description of the load reports (Ref. AMM D/O 31-37-51-00).
   (3) Make sure that load report is not caused by a failure in Post Flight Report data.
   (4) The load report can be considered spurious when one of the following conditions is obeyed:
     (a) VRTA/LATA values have important differences in an interval of 128ms.
     (b) The DNzKPI or the NyKPI, it is isolated on the report: all other VRTA/LATA samples in the time series are in the interval (for VRTA [0.90 to 1.1g]; for LATA [-0.09 to 0.09g]).
     (c) The NYKPI1 in line U1 of the load report has no corresponding sample in the time series.
   (5) If you are not sure that the load report values are correct, do a download of the DFDR data (Ref. AMM TASK 31-33-00-710-009) and send the DFDR data and load report to Airbus.
Subtask 31-37-00-210-051-A
B. Check of the Load Report Parameter after Excessive Turbulence
   (1) Do a check of report lines CE, E1, S2/T2, EC and EE.
F Load-Report Print-Out - Description ** ON A/C NOT FOR ALL
F Load-Report Print-Out - Description ** ON A/C NOT FOR ALL
F Load Report - Event Sequence
NOTE: When there are some valid trigger conditions, the minor triggered code has priority and is the only one printed on the report.
The values of report lines CE, E1 and S2/T2 have to be crosschecked with the (Ref. AMM TASK 05-51-17-200-001) and (Ref. AMM TASK 05-51-44-200-001).
The list that follows shows the trigger codes and the event that causes the print-out of the load report after excessive turbulence:
  • 5100: Excessive Normal Acceleration (VRTA) - compared to the positive limit, flap in clean configuration
  • 5200: Excessive Normal Acceleration (VRTA) - compared to the negative limit, flap in clean configuration
  • 5300: Excessive Normal Acceleration (VRTA) - compared to the positive or negative limit with extended flaps.
The list that follows shows the trigger codes that causes the print-out of the load report after aircraft operation with high lateral acceleration:
  • 5600: Lateral Acceleration (LATA) Amber - The load report shows trigger code 5600 if the value of the in-flight lateral acceleration is between 0.35g and 0.41g.
  • 5700: Lateral Acceleration (LATA) Red - The load report shows trigger code 5700 if the value of the in-flight lateral acceleration is more than 0.41g.
   (2) For additional information refer to (Ref. AMM TASK 05-51-17-200-001) and to the description of the load reports (Ref. AMM D/O 31-37-51-00).
   (3) If you are not sure that the load report parameters are correct do a download of the DFDR data (Ref. AMM TASK 31-33-00-710-009) and a DFDR data analysis to confirm the parameters.
   (4) If the load report is generated, review the post flight report.
Ignore the load report if one of the following conditions is obeyed:
     (a) The generation time has a short difference (less than approximately 1 minute) to a power supply maintenance message and if the power supply maintenance message is as follows:
  • ELEC GEN 1 OFF
  • ELEC GEN 1 FAULT
  • EBG 1 SHUT Down
  • ELEC GEN 2 OFF
  • ELEC GEN 2 FAULT
  • EBG 2 SHUT Down
  • ELEC TR 1 FAULT
  • ELEC TR 2 FAULT.
  • The messages which report a direct current (DC) power supply problem.
     (b) The VRTA, LATA or LONA values have important differences in an interval of 125ms (for example, from 0g to +0.8g).
NOTE: The peak value can be shown two times.
     (c) The VRTA, LATA and LONA values are out of operational range. Operational range format are as follows: VRTA (-3g to +6g), LATA (-1g to +1g) and LONA (-1g to +1g).
NOTE: In case that you are not sure if you can ignore the load report, please contact Airbus.
Subtask 31-37-00-800-050-B ** ON A/C NOT FOR ALL
C. Complementary Information

The list that follows shows the trigger codes, the parameters and their standard values:
  • 5100, 5200, 5300: FLAP (FLAP position: from 0.00 to 40.00 deg.)
  • 4800, 4900: GW (gross weight: from 0 to 8000 multiply by 10 kg)
  • 4800, 4900: GWL (standard value for A318 at 56000 kg, A319 at 61000 kg, A320 at 64500 kg, A321 at 75500 kg)
NOTE: The Gross Weight Limit (GWL) value stored in the DMU database does not always agree with the Maximum Landing Weight (MLW). We recommend to set the GWL value in line with the MLW (Ref. AMM D/O 31-36-00-00).
  • 4100, 4800: RALR (radio altitude rate (vertical Speed): from -99.9 to 99.9 ft/sec. - negative value indicated by '-' on the first digit)
  • 4100: RALRL (standard value at -9 ft/sec.)
  • 4800: RALRLG (standard value at -6 ft/sec.)
  • 4400, 4500, 5100, 5200, 5300: VRTA (normal acceleration: from -3.00 to 6.00 g - negative value indicated by '-' on the first digit)
  • 4900: VRTALG (standard value at 1.7 g)
  • 4400: VRTAL1.1 (standard value at 2.6 g)
  • 4500: VRTAL1.2 (standard value at 2.6 g)
  • 4500: VRTAL1.3 (standard value at 2.6 g)
  • 5100: VRTAL2.1 (standard value at 2.5 g)
  • 5200: VRTAL2.2 (standard value at -1.0 g)
  • 5300: VRTAL2.3 (standard value at 2.0 g)
  • 5400: VRTAL2.4 (standard value at 0.0 g)
NOTE: If the Load Alleviation Function (LAF) is stopped, the Load-Report 15 Code 5400 is no longer applicable. No AC inspection is necessary.
  • 8100: ACARS MU uplink request.
Subtask 31-37-00-800-050-E ** ON A/C NOT FOR ALL
C. Complementary Information

The list that follows shows the trigger codes, the parameters and their standard values:
  • 5100, 5200, 5300: FLAP (FLAP position: from 0.00 to 40.00 deg.)
  • 4800, 4900: GW (gross weight: from 0 to 8000 multiply by 10 kg)
  • 4800, 4900: GWL (standard value for A318 at 56000 kg, A319 at 61000 kg, A320 at 64500 kg, A321 at 75500 kg)
NOTE: The Gross Weight Limit (GWL) value stored in the DMU database does not always agree with the Maximum Landing Weight (MLW). We recommend to set the GWL value in line with the MLW (Ref. AMM D/O 31-36-00-00).
  • 4100, 4800: RALR (radio altitude rate (vertical Speed): from -99.9 to 99.9 ft/sec. - negative value indicated by 'N' on the first digit)
  • 4100: RALRL (standard value at -9 ft/sec.)
  • 4800: RALRLG (standard value at -6 ft/sec.)
  • 4400, 4500, 5100, 5200, 5300: VRTA (normal acceleration: from -3.00 to 6.00 g - negative value indicated by 'N' on the first digit)
  • 4900: VRTALG (standard value at 1.7 g)
  • 4400: VRTAL1.1 (standard value at 2.6 g)
  • 4500: VRTAL1.2 (standard value at 2.6 g)
  • 4500: VRTAL1.3 (standard value at 2.6 g)
  • 5100: VRTAL2.1 (standard value at 2.5 g)
  • 5200: VRTAL2.2 (standard value at -1.0 g)
  • 5300: VRTAL2.3 (standard value at 2.0 g)
  • 5400: VRTAL2.4 (standard value at 0.0 g)
NOTE: If the Load Alleviation Function (LAF) is stopped, the Load-Report 15 Code 5400 is no longer applicable. No AC inspection is necessary.
  • 8100: ACARS MU uplink request.
Subtask 31-37-00-800-050-F ** ON A/C NOT FOR ALL
C. Complementary Information

For standard values of the trigger codes that follows, refer to (Ref. AMM D/O 31-37-51-00):
  • 4310: Overweight red bounce hard landing
  • 4320: Overweight amber bounce hard landing
  • 4410: Overweight red hard landing
  • 4420: Overweight amber hard landing
  • 4510: Red bounce hard landing
  • 4520: Amber bounce hard landing
  • 4610: Red hard landing
  • 4620: Amber hard landing
  • 5100, 5200, 5300: VRTA Normal acceleration
  • 5400: SPCT
NOTE: If the Load Alleviation Function (LAF) is stopped, the Load-Report 15 Code 5400 is no longer applicable. No AC inspection is necessary.
  • 5600: Lateral acceleration amber
  • 5700: Lateral acceleration red.
[Rev.10 from 2021] 2026.04.01 00:36:14 UTC
"Aviabrain" 2025