MEL 27-10
Qu’est-ce que c’est
Item MEL « FEEL DIFF PRESS Light System » (ATA 27-10) du système commandes de vol 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 27-10 — FEEL DIFF PRESS Light System.
Catégorie(s) : B.
Rappel délais : B — 3 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 Original · 2024-05-31.
27-10 — FEEL DIFF PRESS Light System
CAT — · installé — · requis dispatch —
27-10 — FEEL DIFF PRESS Light System
CAT B · installé 1 · requis dispatch 0
(M#) May be inoperative provided Elevator feel system is verified to operate normally once each flight-day.
Explication (français)
Dispatch selon le MEL Air Inuit AILO-0903 (texte extrait du PDF dans l’app). Catégorie(s) de réparation : B — 3 jours calendaires. 2 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 FEEL DIFF PRESS light.
4. Journey log / other instructions (texte MEL) :
Print the following information in the journey log sheet.
FEEL DIFFERENTIAL PRESSURE LIGHT 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 :
Verify that the feel system is operative once each flight day (AMM 27-00-00/901):
1. Pressurize the elevator hydraulic systems A and B (AMM 27-31-00/201).
CAUTION:
MAKE SURE PERSONNEL ARE CLEAR OF THE HORIZONTAL TAIL AND ARE AWARE
THAT HYDRAULIC SYSTEMS ARE PRESSURIZED.
2. Use the stabilizer trim switches to set the stabilizer to 4 units of trim.
3. Set the FLT CONTROL A and B switches to OFF.
4. Verify that the horizontal stabilizer “B” dimension is 39.89 ± 0.03 inches.
5. Set the mach trim actuator in null position (AMM 27-31-00/201).
6. Do a check for pressure leakage in the feel pitot system:
a) Apply a seal to the drain hole in each feel pitot tube on the vertical fin.
b) Remove the drain plugs from the system A and B pitot lines.
NOTE: The pitot lines are located below the elevator feel computer.
c) Connect the pressure gage lines from the air pressure regulator to the drain holes of the pitot
lines.
CAUTION:
DO NOT RAISE TEST PRESSURE ABOVE 5.0 PSI (437 KNOTS) AT ANY TIME DURING
TEST.
d) Connect the pressure lines from air pressure regulator to both pitot probes on the vertical fin.
e) Pressurize the pitot system to 4.8 ± 0.1 psi (429 ± 4 knots).
f) Turn the shutoff valve in the air pressure regulator to off.
g) Make sure the pressure does not decrease more than 0.3 psi (12 knots) during a 2-minute
period.
h) Reduce the pitot pressure to zero.
7. Set the FLT CONTROL A and B switches to ON.
8. Pressurize the pitot system to 2.47 ± 0.05 psi (315 ± 3 knots).
CAUTION:
DO NOT RAISE TEST PRESSURE ABOVE 5.0 PSI (437 KNOTS) AT ANY TIME DURING
TEST.
9. Apply masking tape on the tail cone along the direction of the right elevator trailing edge travel.
NOTE: Elevator travel measuring tool may be used in lieu of tape method.
10. Move the captain’s control column lightly to put the elevator system in the neutral position.
NOTE: Make sure that the control columns are not disturbed from this position during the next
step.
11. Mark the actual elevator trailing edge neutral position on the masking tape.
12. Set FLT CONTROL B switch to OFF and leave FLT CONTROL A switch in the ON position.
13. Move the captain’s control column slowly with a push/pull type spring scale applied to the center
of the control wheel to the elevator positions as shown in the table below.
NOTE: Make sure the force to hold the control column is as shown in the table below.
14. Set FLT CONTROL A switch to OFF and FLT CONTROL B switch to ON.
15. Do step 13 again.
16. Restore the airplane to its usual condition:
a) Make sure that all tools used during testing are removed.
b) Remove all masking tape.
c) Remove seals from the drain holes in each vertical fin pitot probe.
d) Remove the pressure gage lines from systems A and B drain lines.
e) Install the drain plugs to the systems A and B drain lines.
f) Remove regulated air pressure lines from both vertical fin pitot probes.
g) Close all circuit breakers opened during testing.
h) Restore airplane to normal hydraulic configuration (AMM 27-31-00/201).
i) Remove electrical power if no longer required.
Restrictions / notes (extrait MEL)
FEEL DIFFERENTIAL PRESSURE LIGHT INOP
QRH / procédures liées dans l’app
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 · 27-10 (page 267)