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 associated pack switch(es).
4. Journey log / other instructions (texte MEL) :
Print the following information in the journey log sheet.
(L)(R)(BOTH) PACK RAM AIR SYSTEM(S) INOP IN FLIGHT OPEN POSITION
5. Respecter toutes les restrictions du MEL — ne pas en inventer.
(O) OPERATIONS PROCEDURES — texte MEL :
NOTE: With the ram air modulating system deactivated, the AIR COND light and the associated PACK
light may or may not illuminate during Master Caution recall. If illuminated, the AIR COND
and associated PACK light will extinguish when reset.
1. During takeoff and landing when operating on wet runways or on runways with standing water:
a) Position associated PACK switch(es) to OFF.
b) Position the ISOLATION VALVE switch to CLOSE.
2. When dispatching with one operating pack supplied by engine bleed air on takeoff:
a) Determine V1(MCG) based on engine bleed for packs OFF.
b) Determine takeoff performance based on packs AUTO.
3. For each inoperative Pack Ram Air System, use these performance penalties to account for the
increased drag with the ram air inlet door inoperative in the FLIGHT OPEN position:
MODEL ENROUTE CLIMB FUEL MILEAGE
-800 140lb (64 kg) 0.4%
NOTE: Enroute climb penalties are based on single engine operating speeds that approximate
maximum lift-to-drag ratio speed. To account for the difference in level off altitude when
operating at other speeds, multiply the enroute climb weight penalty listed above by the
appropriate Enroute Diversion Speed Effects factor.
Enroute Diversion Speed Effects
(M) MAINTENANCE PROCEDURES — texte MEL (maintenance ; l’équipage vérifie que c’est fait) :
None required.
(M#) MAINTENANCE PROCEDURES — personnel maintenance obligatoire — texte MEL :
Deactivate the ram air modulating system in the flight open position (AMM 21-00-00/901).
1. Open and collar the associated circuit breakers:
a) AIR CONDITIONING RAM AIR MOD LEFT(RIGHT)
b) AIR CONDITIONING RAM AIR MOD CONT L(R)
2. Open the associated ram air actuator panel.
3. Disconnect and stow the electrical connector.
4. Remove bolt, washers and nut that connect the actuator rod end to the bellcrank.
5. Disconnect the actuator rod end from bell crank and reinstall and tighten the bolt, washers and
nut in the bellcrank.
6. Rotate the bellcrank to align the rigging pin holes on the shaft assembly with the holes on the
bearing housing support.
7. Install a bolt (BACB30UU3P36D or equivalent) through the rigging pin holes.
Continued…
8. Install a nut (BACN10JD3 or equivalent) and cotter pin (BACP18BC01D06P or equivalent) on bolt.
9. Use safety wire to secure the actuator rod end to the attached bolt in the bellcrank.
10. Close the ram air actuator panel.
11. Close the associated circuit breakers:
a) AIR CONDITIONING RAM AIR MOD LEFT(RIGHT)
b) AIR CONDITIONING RAM AIR MOD CONT L(R)