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Push-To-Talk (PTT) Switches

MEL 23-16
Qu’est-ce que c’est
Item MEL « Push-To-Talk (PTT) Switches » (ATA 23-16) du système communications sur Boeing 737-800 NG (flotte Air Inuit). Cette page est une aide équipage. Le MEL officiel AILO-0903 fait toujours foi pour le dispatch.
Item MEL
ATA 23-16 — Push-To-Talk (PTT) Switches.
Catégorie(s) : C, D.
Rappel délais : C — 10 jours calendaires ; D — 120 jours calendaires.

Source PDF · AILO-0903 Amdt 5 · 2026-01-08. Colonnes : CAT · 2. NUMBER INSTALLED · 3. NUMBER REQUIRED FOR DISPATCH · 4. REMARKS OR EXCEPTIONS. En-tête item : Amdt 5 · 2026-01-08.

23-16 — Push-To-Talk (PTT) Switches
CAT — · installé — · requis dispatch —
23-16-01 — Control Wheel PTT Switches
CAT C · installé 2 · requis dispatch 1
(M#) One may be inoperative provided: a) Associated audio selector panel PTT switch operates normally, and b) Affected switch is either verified failed open or is deactivated.
23-16-02 — Flight Crew Audio Selector Panel PTT Switches
CAT C · installé 2 · requis dispatch 1
(M#) One may be inoperative provided: a) Associated control wheel PTT switch operates normally, and b) Affected switch is verified failed open.
23-16-03 — Glareshield Panel PTT Switch(es)
CAT — · installé — · requis dispatch —
23-16-03A
CAT C · installé 2 · requis dispatch 0
(M#) May be inoperative provided affected switch is either verified failed open or is deactivated.
23-16-03B
CAT D · installé 2 · requis dispatch 0
(M#) May be inoperative provided: a) Affected switch is either verified failed open or is deactivated, and b) Procedures do not require its use.
Explication (français)
Dispatch selon le MEL Air Inuit AILO-0903 (texte extrait du PDF dans l’app). Catégorie(s) de réparation : C — 10 jours calendaires ; D — 120 jours calendaires. 6 condition(s) de relief extraite(s) du tableau officiel (installé / requis / remarques). Une procédure (M#) maintenance (personnel maintenance obligatoire) s’applique avant dispatch — voir ci-dessous. Les switch names, notes et chiffres ci-dessous sont ceux du MEL. Ne pas ajouter d’étape qui n’y figure pas.
Procédure équipage — (O) / (M) / placard

1. Confirmer l’item, la catégorie et le nombre requis dans le MEL officiel (lien PDF).

2. Appliquer les procédures (O) et/ou (M) du MEL avant dispatch — texte officiel ci-dessous.

3. Placard (texte MEL) :

Apply sticker adjacent to affected Push to Talk (PTT) Switch.

4. Journey log / other instructions (texte MEL) :

Print the following information in the journey log sheet. ____ (LOCATION) PUSH TO TALK (PTT) SWITCH INOP

5. Respecter toutes les restrictions du MEL — ne pas en inventer.

(O) OPERATIONS PROCEDURES — texte MEL :

None required.

(M) MAINTENANCE PROCEDURES — texte MEL (maintenance ; l’équipage vérifie que c’est fait) :

None required.

(M#) MAINTENANCE PROCEDURES — personnel maintenance obligatoire — texte MEL :

23-16-01 Control Wheel PTT Switches Verify the inoperative control wheel PTT switch is failed open. If the switch has not failed open, deactivate the switch (AMM 23-00-00/901). 1. To verify the switch has electrically failed open listen for sidetone during a trial transmission, but do not use the associated PTT switch. NOTE: If there is sidetone, the PTT switch has failed in the closed position. 2. To deactivate the inoperative switch, disconnect, cap and stow the ground wire of the control wheel PTT switch (AMM 23-00-00/901). 3. Use the audio selector panel PTT switch to verify R/T and/or I/C communications. 23-16-02 Flight Crew Audio Selector Panel PTT Switches Verify the inoperative Flight Crew Audio Selector Panel PTT switch is failed open (AMM 23-00-00/901). 1. To verify the switch has electrically failed open listen for sidetone during a trial transmission, but do not use the associated PTT switch. NOTE: If there is sidetone, the PTT switch has failed in the closed position. 2. Use the control wheel PTT switch to verify communications can be established. 23-16-03 Glareshield Panel PTT Switch(es) Verify the inoperative Glareshield Panel PTT switch(es) is failed open. If the switch(es) has not failed open, deactivate the switch(es) (AMM 23-00-00/901). 1. To verify the switch has electrically failed open listen for sidetone during a trial transmission, but do not use the associated PTT switch. NOTE: If there is sidetone, the PTT switch has failed in the closed position. 2. To deactivate the inoperative switch, disconnect, cap and stow the ground wire of the glareshield panel PTT switch
Restrictions / notes (extrait MEL)
____ (LOCATION) PUSH TO TALK (PTT) SWITCH INOP
(M#) May be inoperative provided: a) Affected switch is either verified failed open or is deactivated, and b) Procedures do not require its use.
QRH / procédures liées dans l’app

Liens vers des pages déjà présentes (QRH). Ce ne sont pas des procédures FCOM inventées. Le QRH officiel fait foi.

QRH section 05 — Communications (index)

Aide-mémoire formation. Le MEL Air Inuit officiel (AILO-0903) Amdt 5 (2026-01-08) fait toujours foi pour le dispatch, les (O)/(M) et les restrictions. Cette page ne remplace pas le PDF.

MEL officiel · 23-16 (page 171)