Original system configuration before my arrival: nnaida11 - 2b:22:6e
                                                 nnaida12 - 2b:33:15
                                                 nnaida13 - 2b:09:ce
All on firmware version 0x1900c1f.

With 8us shaping time and pulser amplitude @ 5V, FWHM [ch] were:

   Ch   | nnaida11 | nnaida12 | nnaida13 | nnaida14
  1.4.L |   38     |    33    |   38     |   34
  1.6.L |   24     |    25    |   28     |   23
  1.8.L |   20     |    17    |   17     |   16
 1.10.L |   21     |    17    |   17     |   16

Slightly higher than expected for a few channels, but FWHM fall within ~16-40ch for all channels in all FEEs.
All system checks passed.

nnaida13/14 kept constant throughout as control.

(1) Swapped nnaida11/12: nnaida11 -> 2b:33:0c     nnaida12 -> 2a:d0:1a
    Initially failed SYNC error test - consequence of old firmware version.
    Updated firmware from 0x10300c12 to 0x1900c1f.
    All system tests passed.
    FWHM on 8us shaping time and same pulser settings.

     Ch   | nnaida11 | nnaida12 | nnaida13 | nnaida14
    1.4.L |   37     |    40    |   42     |   35
    1.6.L |   31     |    28    |   29     |   23
    1.8.L |   22     |    18    |   15     |   15
   1.10.L |   23     |    20    |   16     |   15

(2) Swapped nnaida11/12: nnaida11 -> 2a:b8:90     nnaida12 -> 2a:b6:45
    Updated firmware from 0x10300c12 to 0x1900c1f.
    All system checks passed.
    No ASIC temp in nnaida11.
    FWHM on 8us shaping time and same pulser settings.

     Ch   | nnaida11 | nnaida12 | nnaida13 | nnaida14
    1.4.L |   40     |    32    |   40     |   34
    1.6.L |   29     |    25    |   29     |   23
    1.8.L |   21     |    18    |   17     |   16
   1.10.L |   21     |    18    |   17     |   16

(3) Swapped nnaida11/12: nnaida11 -> 2a:ed:9a     nnaida12 -> 2b:11:c5
    Updated firmware from 0x10300c12 to 0x1900c1f.
    All system checks passed.
    No ASIC temp in nnaida12.
    FWHM on 8us shaping time and same pulser settings.

     Ch   | nnaida11 | nnaida12 | nnaida13 | nnaida14
    1.4.L |   44     |    36    |   40     |   35
    1.6.L |   30     |    27    |   29     |   24
    1.8.L |   22     |    18    |   16     |   17
   1.10.L |   23     |    18    |   17     |   16


The above were all the repaired modules and seem to be operating normally.
Following are the 2 modules for which no fault report was provided. I only had time to complete testing on one, the other remains unknown.

(4) Swapped nnaida11/12: nnaida11 -> 2a:ed:8f     nnaida12 -> 2b:09:da
    Updated firmware from 0x10300c12 to 0x1900c1f.
    nnaida11 failed clock status tests. Tried 'Perform resync' from Master Timestamp window with no effect.
    No SYNC errors reported. All other system tests passed.
    nnaida12 missing lots of channels but all system checks passed.
    FWHM on 8us shaping time and same pulser settings.

     Ch   | nnaida11 | nnaida12 | nnaida13 | nnaida14
    1.4.L |   46     |    46    |   41     |   36
    1.6.L |   31     |    26    |   28     |   24
    1.8.L |   22     |    19    |   17     |   16
   1.10.L |   22     |    20    |   17     |   16


**

Overall, the first three modules which have been repaired seem to be operating normally. The fourth seems not be and the last module remains unknown.
Ch 1.4.L displays greater than expected FWHM throughout in all nnaida11/12, but FWHM were largely constant (to within a few channels) throughout and all FWHM fell in the range ~15-40ch apart from 1.1.L in *all* nnaida.