Door Bottle Pressure (LH FWD Emergency Exit) - Fault

TASK 52-22-00-810-806-A
Door Bottle Pressure (LH FWD Emergency Exit) - Fault

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 23-73-00-810-827-A	DEU-B - Fault in DEU-B 300RHx with connected systems/devices
TSM TASK 52-22-00-810-815-A	Pressure Leakage on the Door Damper and Emergency Operation Cylinder
AMM 23-73-00-740-005	BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS
ASM 237327
AMM 52-22-00-010-001	Opening of the Emergency Exit Doors from the Passenger Compartment
AMM 52-22-00-614-002	Charging of the Door Damper and Emergency Operation Cylinders at the Emergency Exit Doors
AMM 52-22-14-000-001	Removal of the Door Damper and Emergency Operation Cylinder

3. Fault Confirmation
Subtask 52-22-00-710-058-A ** ON A/C NOT FOR ALL

A. Do the bite test of the cabin intercommunication data system through the CFDS AMM 23-73-00-740-005.

4. Fault Isolation
Subtask 52-22-00-810-056-C ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message 520000 DOOR BTL 2/DEU B (300RH4):

open the LH FWD emergency-exit door AMM 52-22-00-010-001 and look at the pressure indicator of the ACTUATOR EMERGENCY EXIT [1600WM] .

(1) If the pressure indicator shows less than 1783 psi (122.9335 bar):

(a) If the pressure decreases again:

do the trouble shooting procedure of the ACTUATOR EMERGENCY EXIT [1600WM] (Ref. TSM TASK 52-22-00-810-815).

(2) If the fault continues:

do a check for continuity between:
the pins A and B of the CYL-DAMPER & EMER OPER, FWD EMER EXIT DR L (360RH5) ASM 237327.

(a) If there is no continuity:

(3) If the fault continues:

do a check and repair as necessary the aircraft wiring between:
the pin C/38 of the DEU-B [300RH4] and the pin B of the CYL-DAMPER & EMER OPER, FWD EMER EXIT DR L (360RH5) ASM 237327.

(a) If the fault continues:

do a check and repair as necessary the aircraft wiring between:
the pin A of the CYL-DAMPER & EMER OPER, FWD EMER EXIT DR L (360RH5) and GND ASM 237327.

(4) If the fault continues:

do a trouble shooting procedure of the DEU-B [300RH4] (Ref. TSM TASK 23-73-00-810-827).

Subtask 52-22-00-710-059-A ** ON A/C NOT FOR ALL

B. Do the test as given in para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:34:50 UTC