(2)
Put the microphone of the Sound Pressure Meter/ Range 90 - 130 dB/ Accuracy +/- 1 dB approx. 10 +/-0,5 cm below the first pax loudspeaker.
NOTE : The cockpit door has to be closed through the whole test.
____
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the Test Tone Generator: In the cabin, in all lavatories and at all attendant stations:
-select the White Noise test - the test tone is heard from all
tone. loudspeakers.
At the Sound Pressure Meter:
-the sound pressure level must not be less than the value given in the table for the sound pressure levels.
**ON A/C 001-049, 051-099, 101-105, 201-299,
(Ref. Fig. 501/TASK 23-73-00-991-005)
**ON A/C 151-199,
(Ref. Fig. 501A/TASK 23-73-00-991-005-A)
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 23-73-00Page D513 1201-299, 1Aug 01/05 1 1 1CES 1
Sound Pressure Measurement
Figure 501A/TASK 23-73-00-991-005-A
R 1EFF : 106-149, 151-199, 301-399, 401-499, 1 23-73-00Page D514 1 1 Aug 01/05 1 1 1CES 1
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
2.
Repeat the test step for all cabin, lavatory and attendant loudspeakers.
3.
On the Test Tone Generator:
-switch the White Noise test tone off.
R **ON A/C 106-149, 301-399, 401-499,
Subtask 23-73-00-710-256-A NOTE : The location of the cabin
____ segments in relation to the seatrows is shown in the CFDS/PA LEVEL REPORT (Ref. TASK 23-73-00-860-005).
-
the sound pressure level must not beless than the value given in thetable for the sound pressure levels.
In the cabin, all lavatories and at all attendant stations:
-
the test tone stops.
A. Verification of the correct loudspeaker operation
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. In the cockpit:
-lift the handset from the
cradle.
2. On the handset:
-push the PTT and speak into the handset.
On all AIPs:
-the DIRCT PA message comes on.
In the cabin, in all lavatories and at all attendant stations:
1EFF : ALL 1 23-73-00Page D515 1 1 Aug 01/05 1 1 1CES 1
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
-
the announcement is heard loud and clear without distortion from all loudspeakers.
From the cockpit handset:
-
the announcement is heard.
On all AIPs:
-put the handset back to the - the DIRECT PA message goes off.
cradle.
Subtask 23-73-00-720-051-A
B. Measurement of the sound pressure level
(Ref. Fig. 501A/TASK 23-73-00-991-005-A)
(1)
Put the cockpit handset to the Test Tone Generator, for Becker Flugfunk handsets use Test Tone Generator, Becker Flugfunk, PN: APA 3100-(10), for Holmberg handsets use Test Tone Generator, Holmberg GmbH Co.KG, PN: 98-04-08138.
(2)
Put the microphone of the Sound Pressure Meter/ Range 90 - 130 dB/ Accuracy +/- 1 dB approx. 10 +/-0,5 cm below the first pax loudspeaker.
NOTE : The cockpit door must be closed during the whole test.
____
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the Test Tone Generator: In the cabin, in all lavatories and at all attendant stations:
-select the White Noise test - the test tone is heard from all
tone. loudspeakers.
At the Sound Pressure Meter:
R 1EFF : 106-149, 301-399, 401-499, 1 23-73-00Page D516 1 1 Aug 01/05 1 1 1CES 1
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
2.
Repeat the test step for all cabin, lavatory and attendant loudspeakers.
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