## Service Bulletin

14 April 2014 

# 340–27–109

Page 1 of 96 

## ATA CHAPTER: 27 FLIGHT CONTROLS – STALL WARNING/IDENTIFICATION SYSTEM – REMOVAL OF THE ICE SPEED CURVES FUNCTION FOR AIRCRAFT TRANSFERRED FROM CANADIAN REGISTER AND PROVISION FOR AN IMPROVED STALL WARNING SYSTEM FOR ICING CONDITION. Mod No. 3311, 3528, 3542

1. PLANNING INFORMATION
NOTE : Mod No. 3311 is provision for improved Stall Warning System for Icing Condition.
NOTE : Mod No. 3528 is wire modification of the Engine Anti–icing System for A/C with ACT Engine Air Intake installed by SB340–71–053 or by Option 243–2.
NOTE : Mod no. 3542 is removal of the Canadian artificial ice stall warning curves in the Stall Warning System.

A. EFFECTIVITY (1) Aircraft: Aircraft Mfg. Serial No’s SAAB SF340A – 004, 006, 019, 027, 028, 043, 047, 057, 072, 075, 077, 094, 099, 111, 133, 140, 148. Aircraft Mfg. Serial No’s SAAB 340B – 165, 166, 190, 336, 351, 364, 366, 377, 407, 416
NOTE : Service Bulletin SAAB 340–27–075 (Mod No 2650) or SAAB 340–27–085 (Mod No 2650, 2859) must be included before this Service Bulletin.
FOR A/C With Basic Wingtip:
NOTE : Service Bulletin SAAB 340–27–121 (Mod No 3529) completes the installation and activates the improved Stall Warning System for Icing Condition. (A/C with Basic Wingtip are A/C PRE Service Bulletin SAAB 340–57–026 and PRE Service Bulletin SAAB 340–57–030 and without Option 57:01)
FOR A/C With Extended Wingtip:
NOTE : Service Bulletin SAAB 340–27–122 (Mod No 3530) completes the installation and activates the improved Stall Warning System for Icing Condition. (A/C w ith Extended Wingtip are A/C POST Service Bulletin SAAB 340–57–026 or POST Service Bulletin SAAB 340–57–030 or with Option 57:01 installed) (2) Spares: Not affected.

B. REASON Aircraft on Canadian register have a stall warning computer with artificial ice stall warning curves that is certified only in Canada and need a Canadian AFM. When aircraft is transferred out of Canada the aircraft needs to remove the Canadian artificial ice stall warning curves in the stall warning system to be in a certified configuration outside of Canada.
This Service bulletin removes the Canadian artificial ice stall warning curves in the stall warning system, and installs a provision for an improved stall warning system that includes stall warning curves for icing condition that comply with FAA and EASA requirements.

C. DESCRIPTION This Service Bulletin gives instructions for:

## Service Bulletin

14 April 2014 

# 340–27–109

Page 2 of 96 – removal of panels and units for access – removal of the existing ”ICE SPD ON” push button switch and the related ”ICE SPD” label from the instrument panel 1VU – installation of a new ”ICE SPEED” push button switch and a ”ICE SPD CANCEL” label at the instrument panel 1VU – installation of a ”INOP” sign at the ”ICE SPEED” push button switch at the instrument panel 1VU – installation of a grounding block in the electrical center 305VU – installation of a grounding block in the electrical center 306VU – installation of a relay console in the electrical center 305VU – installation of a relay console in the electrical center 306VU – installation of relay sockets and relays in the electrical center 305VU – installation of relay sockets and relays in the electrical center 306VU – installation of resistors and diodes – installation of clamp brackets – removal of wires – relocation of wires – installation of wires – parking of wires (to make the new system inoperative) – installation of removed access panels and units – functional and operational tests.

D. COMPLIANCE Optional

E. APPROVAL The technical content of this Service Bulletin is approved under the authority of DOA nr. EASA.21J.066.

F. MANPOWER Estimated time to complete this Service Bulletin is: 2 persons required for some of the structural modifications
Total manhours: 80 Elapsed time (hours): 40 Labour cost at operators expense.

G. MATERIAL – COST AND AVAILABILITY Price and availability for Mod Kit. No. SAAB 340–27–109–01 will be furnished on request.

H. TOOLING
FOR A/C 220–459 (1) Heat tool. AA.400 Super Heater Mark II, or equivalent (For the MTC connectors 91VP–P2, 92VP–P2).
FOR A/C ALL (2) Heat gun (3) Weight on wheels (WOW) switches operating tool, TDO 5–4650224. (4) Angle of attack (AOA) calibration tools: – TES4054332–001 (LH)

## Service Bulletin

14 April 2014 

# 340–27–109

Page 3 of 96 – TES4054332–002 (RH).

Crimp tool Positioner Insert tool Removal tool Used for

M22520/1–01 TH343 M81969/14–02 M81969/14–02 item 25: 35HL–J1, 36HL–J1, 37WH–J1, 50WH–J1, 7WHC–J1, 42WW–J1, 15GA–J1, 21GA–J1

M22520/2–01 M22520/2–06 M81969/14–01 item 26: 3WHC–P1, 3WH–P1, 4WH–P1

M22520/1–01 TH441–1 BL J1276–1 J1276–1 item 27: 4WHC, 5WHC, 6WHC, 9WHC, 305VN–G, 306VN–G, 306VT–R 405VN

GMT232 item 28: 1VS–CA, 1VS–CB, 1VS–CC, 160VS–A, 201VS–VA, 203VS–VA, 292VS–A, 293VS–A, 292VS–B, 293VS–B, 292VS–C, 293VS–C, 305VS–GJ, 305VS–GK, 305VS–U, 305VS–UA, 306VS–FA, 306VS–V, 306VS–VA 405VS–N

GMT232 item 29: 306VS–VB

47387 item 30: 2WHC:L/1, 36WH:L/1

## Service Bulletin

14 April 2014 

# 340–27–109

Page 4 of 96 Crimp tool Used for Removal tool Insert tool Positioner
47386 item 31: 2WHC, 1HL, 2HL
M22520/1–01 M22520/1–02 RD M81969/14–11 M81969/14–11 3CN
M22520/1–01 TH343 M81969/14–02 M81969/14–02 55HP

FOR A/C 079–459
Crimp tool Positioner Insert tool Removal tool Used for
M22520/2–01 K817–2 CTA1160 item 32: 205VU–J17 M22520/2–01 K818–2 CTA1160 item 33: 205VU–P17

FOR A/C ALL

I. WEIGHT AND BALANCE
Weight change +2.02 lb / +0.92kg Center of gravity STA 211.4 Change moment +4.27 lb.inch / +1.94 kg.inch 100

J. ELECTRICAL LOAD DATA
Not affected.
NOTE : The electrical load data will be affected post the activation Service Bulletins SAAB 340–27–121 (Mod No 3529) and SAAB 340–27–122 (Mod No 3530).
FOR A/C With Basic Wingtip: Refer to Service Bulletin SAAB 340–27–121 (Mod No 3529). (A/C with Basic Wingtip are A/C PRE Service Bulletin SAAB 340–57–026 and PRE Service Bulletin SAAB 340–57–030 and without Option 57:01)
FOR A/C With Extended Wingtip: Refer to Service Bulletin SAAB 340–27–122 (Mod No 3530). (A/C with Extended Wingtip are A/C POST Service Bulletin SAAB 340–57–026 or POST Service Bulletin SAAB 340–57–030 or with Option 57:01 installed)
FOR A/C ALL

K. REFERENCES
Aircraft Maintenance Manual (AMM) 06–30–00 Description / Operation 12–00–00 Servicing 24–00–00 Maintenance practices 25–11–05 Maintenance practices 34–23–10 Removal / Installation

## Service Bulletin

14 April 2014 

# 340–27–109

Page 5 of 96 34–24–10 Removal / Installation 34–24–15 Removal / Installation 34–25–05 Maintenance practices 39–10–42 Maintenance practices 39–40–40 Maintenance practices 39–40–45 Maintenance practices 39–50–10 Maintenance practices
FOR A/C 079–459 Aircraft Maintenance Manual (AMM) 34–46–00–05 Adjustment / Test 34–46–25–04 Operational Test 34–46–30–04 Operational Test 34–46–35–04 Operational Test 34–60–00–05–2 Procedure 10
FOR A/C 220–459 Aircraft Maintenance Manual (AMM) 21–60–00–05 Adjustment / Test 24–20–00–05 Adjustment / Test 26–11–00–05 Adjustment / Test Procedure 1 26–13–00–05 Adjustment / Test 28–22–15–05 Adjustment / Test 30–10–00–05 Adjustment / Test 31–50–00–05 Part 1 Aural Visual36–11–00–02 Maintenance practices 36–23–00–05 Adjustment / Test 61–22–00–05 Adjustment / Test 71–00–00–05 Adjustment / Test Procedure 1 and 2
FOR A/C ALL Wiring Manual (WM) 20–00–00 Standard practices 20–20–15 Crimped sleeves 20–30–15 MTC Connectors

Structural Repair Manual (SRM) 51–20–42 surface treatment51–20–56 fillet sealing instructions51–40–21 rivet removal/installation 51–40–40 fastener hole and drill data 51–40–60 fastener spacing and edge margin data51–80–00 electrical bonding connection

L. OTHER PUBLICATIONS AFFECTED Aircraft Maintenance Manual (AMM) Illustrated Parts Catalog (IPC) Wiring Manual (WM)

## Service Bulletin

14 April 2014 

# 340–27–109

Page 6 of 96 2. ACCOMPLISHMENT INSTRUCTIONS

A. JOB SET–UP (1) Before you start the SB, make sure: – The modification kit contains the parts listed in the Service Bulletin – The local supply items listed in the Service Bulletin are available – The documentation is available – The special tools are available. (2) Make the aircraft safe for maintenance: (a) Isolate the electrical power (Ref. AMM 24–00–00, maintenance practices). (3) Open for access (Ref. AMM 06–30–00)
REF. FIG. 1 (a) Remove these exterior access panels: (Ref. AMM 06–30–00) – 117AL (electrical center L/H) – 118AR (electrical center R/H) – 210AL (windshield wiper LH) – 210AR (windshield wiper RH). (b) Remove the LH and the RH flight crew seat (Ref. AMM 25–11–05). (c) At the avionics rack:

1 Remove the access panels 210AZ and 220AZ (Ref. AMM 06–30–00). (d) In the flight compartment
1 Remove these access panels: (Ref. AMM 06–30–00) – 117BZ (floor panel) – 215BZ – 215DZ – 215FZ – 215GZ – 216BZ – 216DZ – 216FZ – 216GZ FOR A/C 004–219 – 215EZ remove if necessary for access to splice 293VS – 216EZ remove if necessary for access to splice 292VS FOR A/C 402–439 POST SB340–71–053, and for A/C 440–459 with Option 243–2 installed. (A/C with ACT Engine Air Intake) – 210BZ – 210CZ – 210EZ – 210GZ – 215EZ – 216EZ. FOR A/C ALL
2 Loosen the screws that attach the access panel 215CZ to the structure and lower the panel.
3 Loosen the screws that attach the access panel 216CZ to the structure and lower the panel.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 7 of 96 4 Loosen the screws that attach the circuit breaker panel 10VU to the structure and lower the panel.
5 Loosen the screws that attach the circuit breaker panel 11VU to the structure and lower the panel.
6 Loosen the screws that attach the circuit breaker panel 12VU to the structure and lower the panel. (e) At the instrument panels:
1 Remove the Multi Function Display (MFD 6FP) (Ref. AMM 34–25–05). (Only applicable for A/C with MFD installed).
2 If necessary for access, remove the LH and the RH Electronic Attitude Director Indicators (EADI 2FL and 2FM) (Ref. AMM 34–24–10).
3 If necessary for access, remove the LH and the RH Electronic Horizontal Situation Indicators (EHSI 3FL and 3FM) (Ref. AMM 34–24–15).
4 If necessary for access, remove the Flight Status Panel (51VU) (Ref. AMM 39–50–10).
5 If necessary for access, remove the Standby Horizon Indicator (3FN) (Ref. AMM 34–23–10). (f) Keep the removed units in a safe place.

B. REMOVAL (1) On the instrument panel 1VU, remove the push button switch 1WHA (R111) and the label ”ICE SPD” (R112) (REF. FIG. 26 Sheet 4 of 4).
FOR A/C 004–078 (2) Remove the following wires
REF. FIG. 15

Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:13 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 4WH–P1:7

– WHA8–24 1WHA–P1:B1 3WH–P1:7

– WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 35WH (+)

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 44WW–J1:C2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 44WW–J1:C3

– WHA18–24 306VS–CH 302VT–C:D

–

## Service Bulletin

14 April 2014 

# 340–27–109

Page 8 of 96 Wire No: Remarks: Contact: To: Contact: From: Class:
WHA19–24 302VT–C:C 2WHA

– WHA20–16 2WHA–L/1 12VT–A:9

– WHA21–24 55HP–J1:A3 3CN–P1:Z

– WHA22–24 55HP–J1:B3 3CN–P1:D

– WHA23–24 55HP–J1:A1 55HP–J1:A3

– WHA24–24 55HP–J1:B1 55HP–J1:B3

–

FOR A/C 079–108 (3) Remove the following wires:
REF. FIG. 16

Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:13 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 4WH–P1:7

– WHA8–24 1WHA–P1:B1 3WH–P1:7

– WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 301VS–N

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 40WW–J1:B2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 40WW–J1:B3

– WHA18–24 306VS–CH 302VT–BR:HA

– WHA19–24 302VT–BR:HB 2WHA

– WHA20–16 2WHA–L/1 36WH–L/1

– WHA21–24 301VT–BL:H 301VS–N

– WHA31–24 3CN–P1:Z 55HP–J1:A3

– WHA32–24 3CN–P1:D 55HP–J1:B3

– WHA33–24 55HP–J1:A1 55HP–J1:A3

– WHA34–24 55HP–J1:B1 55HP–J1:B3

–

FOR A/C 109–159 (4) Remove the following wires:
REF. FIG. 17

## Service Bulletin

14 April 2014 

# 340–27–109

Page 9 of 96 Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:3 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 203VT–AD:EA

– WHA7–24 203VT–AD:EB 4WH–P1:7

– WHA8–24 1WHA–P1:B1 203VT–AD:FA

– WHA9–24 203VT–AD:FB 3WH–P1:7

– WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 301VT–BL:E

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 44WW–J1:C2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 44WW–J1:C3

– WHA18–24 306VS–CH 302VT–BR:HA

– WHA19–24 302VT–BR:HB 2WHA

– WHA20–16 2WHA–L/1 12VT–A:7

– WHA21–24 55HP–J1:A3 3CN–P1:Z

– WHA22–24 55HP–J1:B3 3CN–P1:D

– WHA23–24 55HP–J1:A1 55HP–J1:A3

– WHA24–24 55HP–J1:B1 55HP–J1:B3

–
FOR A/C 160–164, 167–199 (5) Remove the following wires:
REF. FIG. 18

Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:3 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 203VT–AD:EA

– WHA7–24 203VT–AD:EB 4WH–P1:7

– WHA8–24 1WHA–P1:B1 203VT–AD:FA

– WHA9–24 203VT–AD:FB 3WH–P1:7

–

## Service Bulletin

14 April 2014 

# 340–27–109

Page 10 of 96 Wire No: Remarks: Contact: To: Contact: From: Class:
WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 301VT–BL:E

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 46WW–J1:B2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 46WW–J1:B3

– WHA18–24 306VS–CH 302VT–BR:HA

– WHA19–24 302VT–BR:HB 2WHA

– WHA20–16 2WHA–L/1 12VT–A:7

– WHA21–24 55HP–J1:A3 3CN–P1:Z

– WHA22–24 55HP–J1:B3 3CN–P1:D

– WHA23–24 55HP–J1:A1 55HP–J1:A3

– WHA24–24 55HP–J1:B1 55HP–J1:B3

–
FOR A/C 165, 166 (6) Remove the following wires:
REF. FIG. 19

Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:3 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 203VT–AD:EA

– WHA7–24 203VT–AD:EB 4WH–P1:7

– WHA8–24 1WHA–P1:B1 203VT–AD:FA

– WHA9–24 203VT–AD:FB 3WH–P1:7

– WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 301VT–BL:E

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 40WW–J1:B2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 40WW–J1:B3

– WHA18–24 306VS–CH 302VT–BR:HA

–

## Service Bulletin

14 April 2014 

# 340–27–109

Page 11 of 96 Wire No: Remarks: Contact: To: Contact: From: Class:
WHA19–24 302VT–BR:HB 2WHA

– WHA20–16 2WHA–L/1 12VT–A:7

– WHA21–24 55HP–J1:A3 3CN–P1:Z

– WHA22–24 55HP–J1:B3 3CN–P1:D

– WHA23–24 55HP–J1:A1 55HP–J1:A3

– WHA24–24 55HP–J1:B1 55HP–J1:B3

–
FOR A/C 300–379 (7) Remove the following wires:
REF. FIG. 20

Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:7 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 203VT–AD:EA

– WHA7–24 203VT–AD:EB 4WH–P1:7

– WHA8–24 1WHA–P1:B1 203VT–AD:FA

– WHA9–24 203VT–AD:FB 3WH–P1:7

– WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 301VT–BK:BD

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 46WW–J1:C2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 46WW–J1:C3

– WHA18–24 306VS–CH 302VT–BR:HA

– WHA19–24 302VT–BR:HB 2WHA

– WHA20–16 2WHA–L/1 12VT–A:7

– WHA21–24 55HP–J1:A3 3CN–P1:Z

– WHA22–24 55HP–J1:B3 3CN–P1:D

– WHA23–24 55HP–J1:A1 55HP–J1:A3

– WHA24–24 55HP–J1:B1 55HP–J1:B3

–
FOR A/C 380–399, 407, 416 (8) Remove the following wires:
REF. FIG. 21

## Service Bulletin

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# 340–27–109

Page 12 of 96 Wire No: Class: From: Contact: To: Contact: Remarks:
WHA1–24 3VN–B:7 1WHA–P1:A3

– WHA2–24 3VN–B:8 1WHA–P1:B3

– WHA3–24 1VS–BC 1WHA–P1:C3

– WHA4–24 1VS–BC 1WHA–P1:6

– WHA5–24 1VS–BC 1WHA–P1:5

– WHA6–24 1WHA–P1:A1 203VT–AD:EA

– WHA7–24 203VT–AD:EB 4WH–P1:7

– WHA8–24 1WHA–P1:B1 203VT–AD:FA

– WHA9–24 203VT–AD:FB 3WH–P1:7

– WHA10–24 1WHA–P1:C2 3WHA (–)

– WHA11–24 1WHA–P1:C1 3VN–B:9

– WHA12–24 3WHA (+) 301VT–BK:BD

– WHA13–24 1WHA–P1:4 306VS–CG

– WHA14–24 306VS–CG 4WHA–702

– WHA15–24 306VS–CG 46WW–J1:C2

– WHA16–24 4WHA–701 306VS–CH

– WHA17–24 306VS–CH 46WW–J1:C3

– WHA18–24 306VS–CH 302VT–BR:HA

– WHA19–24 302VT–BR:HB 2WHA

– WHA20–16 2WHA–L/1 12VT–A:7

– WHA21–24 55HP–J1:A3 3CN–P1:Z

– WHA22–24 55HP–J1:B3 3CN–P1:D

– WHA23–24 55HP–J1:A1 55HP–J1:A3

– WHA24–24 55HP–J1:B1 55HP–J1:B3

–
FOR A/C ALL

C. MODIFICATION / INSTALLATION (1) Structural modifications / installations

## Service Bulletin

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Page 13 of 96 WARNING : MAKE SURE ALL THE ELECTRICAL COMPONENTS IN THE WORK AREA ARE PROTECTED BEFORE YOU START THE STRUCTURAL WORK. SWARF AND WORK DEBRIS CAN CAUSE DAMAGE OR SHORT–CIRCUITS. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. YOU MUST OBEY THE MANUFACTURERS HEALTH AND SAFETY INSTRUCTIONS. THE CONSUMABLE MATERIALS CAN CAUSE INJURY OR DEATH TO PERSONS.
CAUTION : MAKE SURE BEFORE DRILLING AND CUTTING THAT YOU HAVE ENOUGH CLEARANCE TO STRUCTURE AND ELECTRICAL CABLES BEHIND. CUTTING TOOLS CAN CAUSE DAMAGE TO THE MATERIALS.
CAUTION : BE CAREFUL WHEN YOU DO STRUCTURAL MODIFICATIONS NEAR ELECTRICAL HARNESSES AND/OR MECHANICAL COMPONENTS. MAKE SURE THAT YOU COVER ELECTRICAL HARNESSES AND/OR MECHANICAL COMPONENTS ADJACENT TO THE WORK AREA. CLEAN AND INSPECT THE HARNESSES AND/OR THE MECHANICAL COMPONENTS WHEN THE MODIFICATION IS COMPLETED. DAMAGES TO THE WIRES OR THE MECHANICAL COMPONENTS CAN CAUSE SYSTEM MALFUNCTION.
NOTE : For more data on the methods used to do the structural modification, see the: – SRM 51–20–42 for surface treatment – SRM 51–20–56 for fillet sealing instructions – SRM 51–40–21 for instructions on rivet removal/installation – SRM 51–40–40 for fastener hole and drill data. – SRM 51–40–60 for fastener spacing and edge margin data – SRM 51–80–00 for instructions on electrical bonding connection. (a) Installation of the grounding blocks (23)
REF. FIG. 26 Sheet 2 of 4
REF. FIG. 26 Sheet 3 of 4

1 In the electrical center 305VU: REF. FIG. 26 Sheet 2 of 4 view AB, and Sheet 3 of 4 view R–R and view P

a Loosen and lower the applicable relay consoles to get access to the location for the new grounding block 305VN–G (23). Refer to figure 26, Sheet 2 of 4, view AB.
b In the electrical center 305VU at STA 203.5, mark the position for installation of the grounding block 305VN–G (23). Refer to figure 26, Sheet 3 of 4, view R–R and view P.
WARNING : MAKE SURE ALL THE ELECTRICAL COMPONENTS IN THE WORK AREA ARE PROTECTED BEFORE YOU START THE STRUCTURAL WORK. SWARF AND WORK DEBRIS CAN CAUSE DAMAGE OR SHORT–CIRCUITS. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

c Use protective covers to protect the work areas from debris.
CAUTION : MAKE SURE BEFORE DRILLING AND CUTTING THAT YOU HAVE ENOUGH CLEARANCE TO STRUCTURE AND ELECTRICAL CABLES BEHIND. CUTTING TOOLS CAN CAUSE DAMAGE TO THE MATERIALS.
d Hold the grounding block (23) in position to the structure and drill the four holes in accordance with SRM 51–80–00 (Bonding of ground connection).

e Plain deburr if necessary.

## Service Bulletin

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# 340–27–109

Page 14 of 96 f Use the four rivets BJ4–6 (12) to install the grounding block (23) to the structure in accordance with SRM 51–80–00 (Bonding of ground connection). Refer to figure 26, Sheet 3 of 4, view P.
WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. YOU MUST OBEY THE MANUFACTURERS HEALTH AND SAFETY INSTRUCTIONS. THE CONSUMABLE MATERIALS CAN CAUSE INJURY OR DEATH TO PERSONS.

g Apply fillet sealant PR 1422 B–1/2 (or equivalent) to the four rivets.

h Install the marker decal 305VN–G adjacent to the grounding block (23).
i Remove all tools, protective covers and equipment from the work area. j Use a vacuum cleaner and remove all debris. Make sure the work area is clean.

2 In the electrical center 306VU: REF. FIG. 26 Sheet 2 of 4 view AC, and Sheet 3 of 4 view T–T and view P

a Loosen and lower the applicable relay consoles to get access to the location for the new grounding block 306VN–G (23). Refer to figure 26, Sheet 2 of 4, view AC.
b In the electrical center 306VU at STA 203.5, mark the position for installation of the grounding block 306VN–G (23). Refer to figure 26 Sheet 3 of 4 view T–T and view P.
WARNING : MAKE SURE ALL THE ELECTRICAL COMPONENTS IN THE WORK AREA ARE PROTECTED BEFORE YOU START THE STRUCTURAL WORK. SWARF AND WORK DEBRIS CAN CAUSE DAMAGE OR SHORT–CIRCUITS. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

c Use protective covers to protect the work areas from debris.
CAUTION : MAKE SURE BEFORE DRILLING AND CUTTING THAT YOU HAVE ENOUGH CLEARANCE TO STRUCTURE AND ELECTRICAL CABLES BEHIND. CUTTING TOOLS CAN CAUSE DAMAGE TO THE MATERIALS.
d Hold the grounding block (23) in position to the structure and drill the four holes in accordance with SRM 51–80–00 (Bonding of ground connection).

e Plain deburr if necessary.
f Use the four rivets BJ4–6 (12) to install the grounding block (23) to the structure in accordance with SRM 51–80–00 (Bonding of ground connection). Refer to figure 26 , Sheet 3 of 4, view P.
WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. YOU MUST OBEY THE MANUFACTURERS HEALTH AND SAFETY INSTRUCTIONS. THE CONSUMABLE MATERIALS CAN CAUSE INJURY OR DEATH TO PERSONS.

g Apply fillet sealant PR 1422 B–1/2 (or equivalent) to the four rivets.
h Install the marker decal 306VN–G adjacent to the grounding block (23).

i Remove all tools, protective covers and equipment from the work area. j Use a vacuum cleaner and remove all debris. Make sure the work area is clean. (b) Installation of the clamp brackets (22)
REF. FIG. 26 Sheet 3 of 4

## Service Bulletin

14 April 2014 

# 340–27–109

Page 15 of 96 1 In the electrical center 305VU:
REF. FIG. 26 Sheet 3 of 4 view R–R
WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. YOU MUST OBEY THE MANUFACTURERS HEALTH AND SAFETY INSTRUCTIONS. THE CONSUMABLE MATERIALS CAN CAUSE INJURY OR DEATH TO PERSONS.

a In the electrical center 305VU at STA 203.5, use the cleaning agent MEK and clean the area for the three clamp brackets (22).
b Attach the three clamp brackets (22). Use sealant PR 1422 B–1/2 or equivalent.

2 In the electrical center 306VU:
REF. FIG. 26 Sheet 3 of 4 view T–T
WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. YOU MUST OBEY THE MANUFACTURERS HEALTH AND SAFETY INSTRUCTIONS. THE CONSUMABLE MATERIALS CAN CAUSE INJURY OR DEATH TO PERSONS.

a In the electrical center 306VU at STA 203.5, use the cleaning agent MEK and clean the area for the three clamp brackets (22).
b Attach the three clamp brackets (22). Use sealant PR 1422 B–1/2 or equivalent.
3 On the panel 405VU, attach the two clamp brackets (22). Use sealant PR 1422 B–1/2 or equivalent. (REF. FIG. 26 sheet 4 of 4, view W–W). (c) Prepare for installation of the relay consoles (1) and (6)
1 In the electrical center 305VU:
REF. FIG. 24

a Use a heat gun and install two pieces of edge string (5) on the relay console (1) in accordance with FIG. 24 view B. (bench work).
b Use four rivets BJ4–5 to install the panel fastener (4) to the bracket (2). Install in accordance with FIG. 24 view A and D. (bench work).

c Use four rivets BJ4–5 to install the panel fastener (4) to the bracket (3). Install in accordance with FIG. 24 view A and D. (bench work).
WARNING : MAKE SURE ALL THE ELECTRICAL COMPONENTS IN THE WORK AREA ARE PROTECTED BEFORE YOU START THE STRUCTURAL WORK. SWARF AND WORK DEBRIS CAN CAUSE DAMAGE OR SHORT–CIRCUITS. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
d Use protective covers to protect the work area in the electrical center 305VU from debris.

e In the electrical center 305VU, mark the position for the bracket (2) and the bracket (3). Use the relay console (1) as a template. Refer to figure 24 view A.
NOTE : It is important to install the brackets (2 and 3) in the correct position in accordance with the measurement given in figure 24 view A.
CAUTION : MAKE SURE BEFORE DRILLING AND CUTTING THAT YOU HAVE ENOUGH CLEARANCE TO STRUCTURE AND ELECTRICAL CABLES BEHIND. CUTTING TOOLS CAN CAUSE DAMAGE TO THE MATERIALS.
f Drill and deburr the six holes for the brackets (2) and (3).

## Service Bulletin

14 April 2014 

# 340–27–109

Page 16 of 96 g Use six rivets BJ5–5 to install the bracket (2) and the bracket (3) to the structure. Install in accordance with figure 24 view A.
FOR A/C With Option 231–1 (Portable Oxygen Bottle)
REF. FIG. 24 view C
WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. YOU MUST OBEY THE MANUFACTURERS HEALTH AND SAFETY INSTRUCTIONS. THE CONSUMABLE MATERIALS CAN CAUSE INJURY OR DEATH TO PERSONS.
h In the electrical center 305VU, use the cleaning agent MEK and clean the flanges of the reinforcement bracket for the portable oxygen bottle.
i Use a heat gun and install two pieces of edge string (5) on the flanges of the reinforcement bracket in accordance with FIG. 24 view C.
FOR A/C ALL j Temporarily install the relay console (1).
k Remove all tools, protective covers and equipment from the work area.
l Use a vacuum cleaner and remove all debris. Make sure the work area is clean.
2 In the electrical center 306VU:
REF. FIG. 25

a Use a heat gun and install three pieces of edge string (5) on the relay console (6) in accordance with FIG. 25 view B. (bench work).
b Use four rivets BJ4–5 to install the panel fastener (4) to the bracket (2). Install in accordance with FIG. 25 view A and C. (bench work).

c Use four rivets BJ4–5 to install the panel fastener (4) to the bracket (3). Install in accordance with FIG. 25 view A and C. (bench work).
WARNING : MAKE SURE ALL THE ELECTRICAL COMPONENTS IN THE WORK AREA ARE PROTECTED BEFORE YOU START THE STRUCTURAL WORK. SWARF AND WORK DEBRIS CAN CAUSE DAMAGE OR SHORT–CIRCUITS. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
d Use protective covers to protect the work area in the electrical center 306VU from debris.

e In the electrical center 306VU, mark the position for the bracket (2) and the bracket (3). Use the relay console (6) as a template. Refer to figure 25 view A.
NOTE : It is important to install the brackets (2 and 3) in the correct position in accordance with the measurement given in figure 25 view A.
CAUTION : MAKE SURE BEFORE DRILLING AND CUTTING THAT YOU HAVE ENOUGH CLEARANCE TO STRUCTURE AND ELECTRICAL CABLES BEHIND. CUTTING TOOLS CAN CAUSE DAMAGE TO THE MATERIALS.
f Drill and deburr the six holes for the brackets (2) and (3).

g Use six rivets BJ5–5 to install the bracket (2) and the bracket (3) to the structure. Install in accordance with figure 25 view A.
h Temporarily install the relay console (6).
i Remove all tools, protective covers and equipment from the work area.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 17 of 96 j Use a vacuum cleaner and remove all debris. Make sure the work area is clean. (2) Electrical modifications / installations
CAUTION : BE CAREFUL WHEN YOU DO THE MODIFICATION OF THE HARNESS. MAKE SURE THAT YOU DO NOT DAMAGE THE EXISTING WIRES WHEN NEW WIRES ARE INSTALLED. CLEAN AND INSPECT THE AFFECTED HARNESS WHEN THE MODIFICATION IS COMPLETED. DAMAGES TO THE WIRES CAN CAUSE SYSTEM MALFUNCTION.
NOTE : All wiring changes are to be performed in accordance with the procedures in the WM 20–00–00. (a) Installation of the relay sockets (19 and 21)

1 In the electrical center 305VU:
REF. FIG. 26 Sheet 3 of 4 view AD

a Remove the relay console (1) and put it on a suitable work bench.
b At the relay console (1), install the relay sockets 21GA–J1 (19) and 7WHC–J1 (19).

c At the rear side of the relay console (1), install the marker decal 21GA–J1 adjacent to the relay socket 21GA–J1.
d At the rear side of the relay console (1), install the marker decal 7WHC–J1 adjacent to the relay socket 7WHC–J1.

e At the relay console (1), install the relay socket 35HL–J1 (21).
f At the rear side of the relay console (1), install the marker decal 35HL–J1 adjacent to the relay socket 35HL–J1.

g Install the relay console (1) in the electrical center 305VU.
NOTE : At installation of the wires to the relay sockets, (21GA–J1, 7WHC–J1 and 35HL–J1) make sure that you have sufficient length and routing of the wires to be able to loosen and lower the relay console (1) for future installations.

2 In the electrical center 306VU:
REF. FIG. 26 Sheet 3 of 4 view AE

a Remove the relay console (6) and put it on a suitable work bench.
b At the relay console (6), install the relay socket 50WH–J1 (19).

c At the rear side of the relay console (6), install the marker decal 50WH–J1 adjacent to the relay socket 50WH–J1.
d At the relay console (6), install the relay socket 36HL–J1 (21).

e At the rear side of the relay console (6), install the marker decal 36HL–J1 adjacent to the relay socket 36HL–J1.
f Install the relay console (6) in the electrical center 306VU.
NOTE : At installation of the wires to the relay sockets, (50WH–J1 and 36HL–J1) make sure that you have sufficient length and routing of the wires to be able to loosen and lower the relay console (6) for future installations. (b) Installation and reidentification of resistors and diodes.
REF. FIG. 26 Sheet 1 of 4 view E
REF. FIG. 26 Sheet 2 of 4 view D and view J

## Service Bulletin

14 April 2014 

# 340–27–109

Page 18 of 96 1 At the terminal track 3VT, Rename the existing diod 3WHA to 9WHC. Refer to figure 26 Sheet 1 of 4 view E.
2 In the electrical center 305VU, at 305VT, install the terminal block diode 5WHC (17). Refer to figure 26 Sheet 2 of 4 view J.
3 Install the marker decal 5WHC at the terminal block for 5WHC.
4 In the electrical center 306VU, at 306VT, install the terminal block resistor 6WHC (16). Refer to figure 26 Sheet 2 of 4 view D.
5 Install the marker decal 6WHC at the terminal block for 6WHC.
6 In the electrical center 306VU, at 306VT, rename the existing resistor 4WHA to 4WHC. Refer to figure 26 Sheet 2 of 4 view D. (c) Installation of the push button switch 3WHC (15)
REF. FIG. 26 Sheet 4 of 4 view L
1 At the instrument panel 1VU, put the push button switch 3WHC (15) in position. Refer to figure 26 Sheet 4 of 4 view L.
NOTE : Do not attach the push button switch at this step. (The push button switch is attached to the instrument panel 1VU after connection of the wires. Step 2.D.(2). (d) Rename the circuit breaker from 2WHA to 2WHC
REF. FIG. 26 Sheet 2 of 4 view K
1 At the RH circuit breaker panel 12VU, install the new label (13) at position S–28.
2 At the rear side of the RH circuit breaker panel 12VU, remove the marker decal 2WHA.
3 At the rear side of the RH circuit breaker panel 12VU, install the marker decal 2WHC adjacent to the circuit breaker 2WHC at the position S–28.
4 Open the circuit breaker 2WHC and use a cable–tie to safety the circuit breaker in open position. (3) Relocation of wires (REF. FIG. 26)
CAUTION : BE CAREFUL WHEN YOU DO THE MODIFICATION OF THE HARNESS. MAKE SURE THAT YOU DO NOT DAMAGE THE EXISTING WIRES WHEN NEW WIRES ARE INSTALLED. CLEAN AND INSPECT THE AFFECTED HARNESS WHEN THE MODIFICATION IS COMPLETED. DAMAGES TO THE WIRES CAN CAUSE SYSTEM MALFUNCTION.
NOTE : All wiring changes are to be performed in accordance with the procedures in the WM 20–00–00. NOTE : The color of the lacing cord on the A and the B wire bundles gives the harness class and identification. The A harness is identified with white lacing cord and the B harness is identified with red/black lacing cord.
FOR A/C 004–219 (a) Relocate these wires:
REF. FIG. 2 and 3
1 Find the splices 292VS and 293VS in the flight compartment left and right area, refer to Fig 26 Sheet 1 of 4 view B and C.

Wire No: Class: From: Contact: To: Contact: Remarks:
HL13–24* A 292VS 36HL–J1:X2 item 25 * (+ 2500mm)
HL25–24* A 293VS 35HL–J1:X2 item 25 * (+ 3000mm)

## Service Bulletin

14 April 2014 

# 340–27–109

Page 19 of 96 Wire No: Remarks: Contact: To: Contact: From: Class:
HL64–24 A 292VS 292VS–A ** item 28 ** splice together with HL89 and HL3004
HL67–24 A 293VS 293VS–A *** item 28 *** splice together with HL91 and HL3001
HL89–24 A 292VS (discard 292VS) 292VS–A   splice together with HL64 and HL3004
HL91–24 A 293VS (discard 293VS) 293VS–A ** * *** splice together with HL67 and HL3001

2 *) Extend the existing wires HL13–24 and HL25–24 with marked wires and unmarked butt splices (28) supplied in the Material Kit.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C 220–401 (b) Relocate these wires:
REF. FIG. 4 and 5

Wire No: Class: From: Contact: To: Contact: Remarks:
HL64–24* A 92VP–P2:B1 36HL–J1:X2 item 25 * (+ 2500mm)
HL67–24* A 91VP–P2:A20 35HL–J1:X2 item 25 * (+ 3000mm)

1 *) Extend the existing wires HL64–24 and HL67–24 with marked wires and unmarked butt splices (28) supplied in the Material Kit.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
NOTE : For maintenance practices of the MTC connectors, Ref. WM 20–30–15.
FOR A/C 402–439 PRE SB340–71–053, and for A/C 440–459 without Option 243–2. (A/C with COX Engine Air Intake) (c) Relocate these wires:
REF. FIG. 4 and 5

Wire No: Class: From: Contact: To: Contact: Remarks:
HL64–24* A 92VP–P2:B1 36HL–J1:X2 item 25 * (+ 2500mm)
HL67–24* A 91VP–P2:A20 35HL–J1:X2 item 25 * (+ 3000mm)

1 *) Extend the existing wires HL64–24 and HL67–24 with marked wires and unmarked butt splices (28) supplied in the Material Kit.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
NOTE : For maintenance practices of the MTC connectors, Ref. WM 20–30–15.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 20 of 96 FOR A/C 402–439 POST SB340–71–053, and for A/C 440–459 with Option 243–2 installed. (A/C with ACT Engine Air Intake) (d) Relocate these wires:
REF. FIG. 6 and 7

1 Find the splices 292VS and 293VS in the overhead area, refer to Fig 26 Sheet 3 of 4 view AG. (Temporary loosen, but not disconnect, applicable overhead panels).

Wire No: Class: From: Contact: To: Contact: Remarks:
HL91–24 A 293VS 293VS–C * * item 28 * * splice together with HL3006 and HL3008
HL67–24 A 293VS 293VS–B item 28
HL67–24 * A 91VP–P2:A20 * 35HL–J1:X2 item 25 * (+ 3000mm)
HL25–24 A 293VS (discard 293VS) 293VS–B

HL89–24 A 292VS 292VS–C * * * item 28 ** * splice together with HL3007 and HL3009
HL64–24 A 292VS 292VS–B item 28
HL64–24* A 92VP–P2:B1 * 36HL–J1:X2 item 25 * (+ 2500mm)
HL13–24 A 292VS (discard 292VS) 292VS–B

2 *) Extend the existing wires HL64–24 and HL67–24 with marked wires and unmarked butt splices (28) supplied in the Material Kit.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
NOTE : For maintenance practices of the MTC connectors, Ref. WM 20–30–15.
FOR A/C ALL (e) Relocate these wires:
REF. FIG. 8 and 9

Wire No: Class: From: Contact: To: Contact: Remarks:
WH311–24 A 306VT–R:H 306VS–FA ** item 28 ** splice together with WH3000 and WH3003
WH375–24* A 42WW–J1:C2 50WH–J1:C2 item 25 * (+1000mm)
WH376–24* A 42WW–J1:C3 50WH–J1:C3 item 25 * (+1000mm)

1 *) Extend the existing wires WH375–24 and WH376–24 with marked wires and unmarked butt splices (28) supplied in the Material Kit.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15. (f) Relocate these wires:
REF. FIG. 11 and 12

## Service Bulletin

14 April 2014 

# 340–27–109

Page 21 of 96 Wire No: Class: From: Contact: To: Contact: Remarks:
GA83–24 A 15GA–J1:X1 305VS–GJ * item 28 * splice together with GA3002 and GA3004
GA84–24 A 15GA–J1:X2 305VS–GK ** item 28 ** splice together with GA3001 and GA3003

NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C 079–108 (g) Relocate this wire:
REF. FIG. 10

Wire No: Class: From: Contact: To: Contact: Remarks:
WH452–24 301VS–N 301VT–BL:H item 27

FOR A/C ALL

D. INSTALLATION (1) Installation of wires (REF. FIG. 26)
CAUTION : BE CAREFUL WHEN YOU DO THE MODIFICATION OF THE HARNESS. MAKE SURE THAT YOU DO NOT DAMAGE THE EXISTING WIRES WHEN NEW WIRES ARE INSTALLED. CLEAN AND INSPECT THE AFFECTED HARNESS WHEN THE MODIFICATION IS COMPLETED. DAMAGES TO THE WIRES CAN CAUSE SYSTEM MALFUNCTION.
NOTE : All wiring changes are to be performed in accordance with the procedures in the WM 20–00–00.
NOTE : The color of the lacing cord on the A and the B wire bundles gives the harness class and identification. The A harness is identified with white lacing cord and the B harness is identified with red/black lacing cord.
FOR A/C 004–219 (a) Install these new wires:
REF. FIG. 3

Wire No: Class: From: Contact: To: Contact: Remarks:
HL3001–24 A 293VS–A *** 35HL–J1:A2 item 25 *** splice together with HL67 and HL91
HL3004–24 A 292VS–A ** 36HL–J1:A2 item 25 ** splice together with HL64 and HL89

NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C 220–401 (b) Install these new wires:

## Service Bulletin

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# 340–27–109

Page 22 of 96 REF. FIG. 5

Wire No: Class: From: Contact: To: Contact: Remarks:
HL3006–24 A 35HL–J1:A2 item 25 91VP–P2:A20 item 34
HL3007–24 A 36HL–J1:A2 item 25 92VP–P2:B1 item 34

NOTE : For maintenance practices of the MTC connectors, Ref. WM 20–30–15. FOR A/C 402–439 PRE SB340–71–053, and for A/C 440–459 without Option 243–2. (A/C with COX Engine Air Intake) (c) Install these new wires: REF. FIG. 5

Wire No: Class: From: Contact: To: Contact: Remarks:
HL3006–24 A 35HL–J1:A2 item 25 91VP–P2:A20 item 34
HL3007–24 A 36HL–J1:A2 item 25 92VP–P2:B1 item 34

NOTE : For maintenance practices of the MTC connectors, Ref. WM 20–30–15. FOR A/C 402–439 POST SB340–71–053, and for A/C 440–459 with Option 243–2 installed. (A/C with ACT Engine Air Intake) (d) Install these new wires: REF. FIG. 7

Wire No: Class: From: Contact: To: Contact: Remarks:
HL3006–24 A 91VP–P2:A20 item 34 293VS–C * * * * splice together with HL91 and HL3008
HL3008–24 A 35HL–J1:A2 item 25 293VS–C * * * * splice together with HL91 and HL3006
HL3007–24 A 92VP–P2:B1 item 34 292VS–C * * * ** * splice together with HL89 and HL3009
HL3009–24 A 36HL–J1:A2 item 25 292VS–C * * * ** * splice together with HL89 and HL3007

FOR A/C ALL (e) Install these new wires: FOR A/C 004–219 REF. FIG. 3 FOR A/C 220–401 REF. FIG. 5 FOR A/C 402–439 PRE SB340–71–053, and for A/C 440–459 without Option 243–2. (A/C with COX Engine Air Intake.) REF. FIG. 5

## Service Bulletin

14 April 2014 

# 340–27–109

Page 23 of 96 FOR A/C 402–439 POST SB340–71–053, and for A/C 440–459 with Option 243–2 installed. (A/C with ACT Engine Air Intake)
REF. FIG. 7
FOR A/C ALL

Wire No: Class: From: Contact: To: Contact: Remarks:
HL3000–24 A 1HL item 31 35HL–J1:X1 item 25
HL3002–24 A 305VN–G:4 item 27 35HL–J1:A1 item 25
HL3003–24 A 2HL item 31 36HL–J1:X1 item 25
HL3005–24 A 306VN–G:3 item 27 36HL–J1:A1 item 25
(f) Install these new wires:
REF. FIG. 9

Wire No: Class: From: Contact: To: Contact: Remarks:
WH3000–24 A 306VS–FA * 306VT–R:H item 27 * splice together with WH3003 and WH311
WH3003–24 A 306VS–FA * 50WH–J1:X1 item 25 * splice together with WH3000 and WH311
WH3004–24 A 42WW–J1:C2 item 25 50WH–J1:X2 item 25
WH3005–24 A 42WW–J1:C1 item 25 306VN–G:1 item 27

NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15. (g) Install these new wires:
REF. FIG. 12

Wire No: Class: From: Contact: To: Contact: Remarks:
GA3001–24 A 305VS–GK ** 21GA–J1:X2 item 25 ** splice together with GA84 and GA3003
GA3002–24 A 305VS–GJ * 21GA–J1:X1 item 25 * splice together with GA83 and GA3004
GA3003–24 A 305VS–GK ** 15GA–J1:X2 item 25 ** splice together with GA84 and GA3001
GA3004–24 A 305VS–GJ* 15GA–J1:X1 item 25 * splice together with GA83 and GA3002

NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 24 of 96 (h) Install these new wires: FOR A/C 004–078 REF. FIG. 22 FOR A/C 079–459 REF. FIG. 23 FOR A/C ALL

Wire No: Class: From: Contact: To: Contact: Remarks:
WHC1–24 A 1VS–CC item 28 3WHC–P1:7 item 26
WHC2–24 A 306VS–VA item 28 50WH–J1:B3 item 25
WHC3–24 A 306VS–VB item 29 50WH–J1:B2 item 25
WHC4–24 A 306VS–VA 4WHC–702 item 27
WHC5–24 A 306VS–VB 6WHC–701 item 27
WHC6–24 A 305VS–UA item 28 7WHC–J1:C2 item 25
WHC7–24 A 305VS–U item 28 7WHC–J1:X2 item 25
WHC8–24 A 305VS–U 7WHC–J1:A2 item 25
WHC9–24 A 1VS–CB item 28 3WHC–P1:8 item 26
WHC10–24 A 1VS–CB 3WHC–P1:9 item 26
WHC11–24 A 1VS–CA item 28 3WHC–P1:6 item 26
WHC12–24 A 1VS–CA 3WHC–P1:5 item 26
WHC13–24 A 1VS–CC 3WHC–P1:4 item 26
WHC14–24 A 1VS–CC 9WHC – item 27
WHC15–24 A 1VS–CC 5WHC – item 27
WHC19–24 A 306VS–VB 4WHC:701 item 27
WHC20–24 A 306VS–V item 28 6WHC:702 item 27
WHC21–24 A 306VS–VB 50WH–J1:A2 item 25
WHC22–24 A 306VS–V 50WH–J1:A3 item 25
WHC23–24 A 306VN–G:2 item 27 36HL–J1:B1 item 25
WHC24–24 A 305VS–U 36HL–J1:B2 item 25
WHC25–24 A 305VS–U 35HL–J1:B2 item 25
WHC26–24 A 305VN–G:2 item 27 35HL–J1:B1 item 25
WHC27–24 A 305VS–UA 7WHC–J1:B2 item 25
WHC28–24 A 305VS–UA 7WHC–J1:A1 item 25
WHC29–24 A 305VN–G:1 item 27 37WH–J1:B2 item 25
WHC30–24 A 37WH–J1:B1 item 25 5WHC + item 27
WHC31–24 A 3WHC–P1:A2 item 26 21GA–J1:A2 item 25
WHC32–24 A 160VS–A item 28 3WHC–P1:A3 item 26
WHC33–24 A 1VS–CB 306VS–V
WHC34–24 A 1VS–CA 306VS–VA
WHC35–24 A 160VS–A 306VS–VB

## Service Bulletin

14 April 2014 

# 340–27–109

Page 25 of 96 Wire No: Remarks: Contact: To: Contact: From: Class:
WHC36–16 A 2WHC:L/1 item 30 36WH:911 * item 30 *
WHC37–24 A 160VS–A 2WHC item 31
WHC40–24 A 305VN–G:3 item 27 305VS–UA
WHC48–24 A 21GA–J1:A3 item 25 7WHC–J1:X1 item 25

1 *) Install the terminal lug (30) to the wire, insulate the terminal lug with shrink sleeve (supplied in the kit). Park and stow this end adjacent to the circuit breaker 36WH. (36WH:L/1).
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C 004–078 (i) Install these new wires:
REF. FIG. 22

Wire No: Class: From: Contact: To: Contact: Remarks:
WHC16–24 A 7WHC–J1:C1 item 25 4WH–P1:911 ** item 26 **
WHC17–24 A 7WHC–J1:B1 item 25 3WH–P1:911 * item 26 *
WHC18–24 A 201VS–VA item 28 4WH–P1:911 ** item 26 **
WHC38–24 A 9WHC + item 27 201VS–VA
WHC39–24 A 201VS–VA 3WH–P1:911 * item 26 *

1 *) Install the contact (26) to the wire, insulate the contact with shrink sleeve (supplied in the kit). Park and stow this end adjacent to 3WH–P1.
2 **) Install the contact (26) to the wire, insulate the contact with shrink sleeve (supplied in the kit). Park and stow this end adjacent to 4WH–P1.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C 079–459 (j) Install these new wires:
REF. FIG. 23

Wire No: Class: From: Contact: To: Contact: Remarks:
WHC16–24 A 7WHC–J1:C1 item 25 205VU–P17:A6 item 33
WHC17–24 A 7WHC–J1:B1 item 25 205VU–P17:A7 item 33
WHC38–24 A 9WHC + item 27 205VU–P17:A5 item 33
WHC41–24 A 203VS–VA item 28 205VU–J17:A5 item 32
WHC44–24 A 203VS–VA 4WH–P1:911 ** item 26 **
WHC45–24 A 205VU–J17:A6 item 32 4WH–P1:911 ** item 26 **
WHC46–24 A 203VS–VA 3WH–P1:911 * item 26 *
WHC47–24 A 205VU–J17:A7 item 32 3WH–P1:911 * item 26 *

1 *) Install the contact (26) to the wire, insulate the contact with shrink sleeve (supplied in the kit). Park and stow this end adjacent to 3WH–P1.
2 **) Install the contact (26) to the wire, insulate the contact with shrink sleeve (supplied in the kit). Park and stow this end adjacent to 4WH–P1.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 26 of 96 NOTE : For maintenance practices of the MTC connectors, Ref. WM 20–30–15.
NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C 004–379 (k) Install these new wires in the cabin compartment 405VU:
REF. FIG. 13

Wire No: Class: From: Contact: To: Contact: Remarks:
WH205–24 A 3CN–P1:Z item 35 55HP–J1:A3 item 25
WH206–24 A 3CN–P1:D item 35 55HP–J1:B3 item 25
WH207–24 A 55HP–J1:A1 item 25 405VS–N item 28
WH208–24 A 55HP–J1:B1 item 25 405VS–N
WH209–24 A 405VS–N 405VN–A:9 item 27

FOR A/C 380–459 (l) Install these new wires in the cabin compartment 405VU:
REF. FIG. 14

Wire No: Class: From: Contact: To: Contact: Remarks:
WHB205–24 A 3CN–P1:Z item 35 55HP–J1:A3 item 25
WHB206–24 A 3CN–P1:D item 35 55HP–J1:B3 item 25
WHB207–24 A 55HP–J1:A1 item 25 405VS–N item 28
WHB208–24 A 55HP–J1:B1 item 25 405VS–N
WHB209–24 A 405VS–N 405VN–A:9 item 27

NOTE : For maintenance practices of the butt splices, Ref. WM 20–20–15.
FOR A/C ALL (2) Installation of the push button switch 3WHC
REF. FIG. 26 Sheet 4 of 4 view L (a) Attach the push button switch 3WHC (15) to the instrument panel 1VU. (b) Install the label ”ICE SPD CANCEL” (14) above the push button switch 3WHC (15). (c) Make a label with the text ”INOP” and install on top of the label (14) ”ICE SPD CANCEL” to cover the label (14). (3) Installation of relays (18 and 20) (a) In the electrical center 305VU:
REF. FIG. 26 Sheet 3 of 4 view AD

1 At the relay console (1) at 7WHC–J1, install the relays 21GA (18) and 7WHC (18). (Ref. AMM 39–40–45).
2 At the front side of the relay console (1), install the marker decal 21GA adjacent to the relay 21GA.
3 At the front side of the relay console (1), install the marker decal 7WHC adjacent to the relay 7WHC.

4 At the relay console (1) at 35HL–J1, install the relay 35HL (20). (Ref. AMM 39–40–40).

## Service Bulletin

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# 340–27–109

Page 27 of 96 5 At the front side of the relay console (1), install the marker decal 35HL adjacent to the relay 35HL.
6 At the relay console (1), use silicon tape and a strap to attach the wires to the relay console (1). Refer to figure 26 Sheet 3 of 4 view AD.
NOTE : When you attach the wires to the relay console (1), make sure that you have sufficient length and routing of the wires to be able to loosen and withdraw the relay console (1) for future installations. (b) In the electrical center 306VU:
REF. FIG. 26 Sheet 3 of 4 view AE

1 At the relay console (6) at 50WH–J1, install the relay 50WH (18). (Ref. AMM 39–40–45).

2 At the front side of the relay console (6), install the marker decal 50WH adjacent to the relay 50WH.
3 At the relay console (6) at 36HL–J1, install the relay 36HL (20). (Ref. AMM 39–40–40).

4 At the front side of the relay console (6), install the marker decal 36HL adjacent to the relay 36HL.

5 At the relay console (6), use silicon tape and a strap to attach the wires to the relay console (6). Refer to figure 26 Sheet 3 of 4 view AE.
NOTE : When you attach the wires to the relay console (6), make sure that you have sufficient length and routing of the wires to be able to loosen and withdraw the relay console (6) for future installations. (4) In the electrical center 306VU, install the convoluted tubing (7) on the harness to the existing relay consoles in accordance with FIG. 26 Sheet 2 of 4 view H–H. (5) Restore all affected wiring in accordance with the procedures in the wiring manual, Ref. WM 20–00–00. (6) Install the marker plates and the marker decals as applicable at the related items and locations. (7) Remove all the tools and equipment from the work area. Make sure the work area is clean. (8) Installation of removed units (a) Install the Multi Function Display (MFD 6FP) (Ref. AMM 34–25–05). (Only applicable for A/C with MFD installed). (b) If removed, install the LH and the RH Electronic Attitude Director Indicators (EADI 2FL and 2FM) (Ref. AMM 34–24–10). (c) If removed, install the LH and the RH Electronic Horizontal Situation Indicators (EHSI 3FL and 3FM) (Ref. AMM 34–24–15). (d) If removed, install the Flight Status Panel (51VU) (Ref. AMM 39–50–10). (e) If removed, install the Standby Horizon Indicator (3FN) (Ref. AMM 34–23–10). (9) Close the access:
REF. FIG. 1 (a) Put the circuit breaker panel 10VU in position at the structure and tighten the screws. (b) Put the circuit breaker panel 11VU in position at the structure and tighten the screws. (c) Put the circuit breaker panel 12VU in position at the structure and tighten the screws. (d) Hold the access panel 215CZ in position to the structure and tighten the screws. (e) Hold the access panel 216CZ in position to the structure and tighten the screws.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 28 of 96 (f) In the electrical center 305VU, hold the loosened relay consoles in position and tighten the dzus fasteners. (g) In the electrical center 306VU, hold the loosened relay consoles in position and tighten the dzus fasteners. (h) Install the exterior access panels: – 117AL (electrical center L/H) – 118AR (electrical center R/H) – 210AL (windshield wiper LH) – 210AR (windshield wiper RH). (10) Install the LH and the RH flight crew seat (Ref. AMM 25–11–05). (11) If applicable, install overhead panels if loosened. (12) Remove all the tools and equipment from the work area. Make sure the work area is clean.

E. FUNCTIONAL AND OPERATIONAL TEST
NOTE : Do the tests that follows in order to test the connection of the wires in the connectors and the splices that has been opened during installation. (1) Prepare the aircraft for test (a) Supply the 28 VDC external power (Ref. AMM 12–00–00, servicing). (b) On the overhead panel DC ELEC (32VU), set the switches L AVION, R AVION and ESS AVION to ON. (c) On the overhead panel AC/DC ELEC (33VU), set the switch INVERTER to ON (1 or 2). If the AC/DC ELEC panel does not have the switch INVERTER, set the switch MAIN INV to position ON.
FOR A/C 220–459 (2) Do the functional test of the aural and visual alerts (Ref. AMM 31–50–00–05, Part 1). (3) Do this operational test of the AC Power–Inverter 1 :

ACTION RESULT (a) On the overhead panel AC/DC ELEC (33VU), set the switch INVERTER (or MAIN INV) to OFF. On the overhead panel AC/DC ELEC (33VU), the indicator light INVERTER

comes on. (b) On the overhead panel AC/DC ELEC (33VU), set the switch INVERTER to position 1. If the AC/DC ELEC panel does not have the switch INVERTER, set the switch MAIN INV to ON. On the overhead panel (33VU) the indicator light INVERTER goes off.

FOR A/C ALL (4) If the Standby Horizon Indicator was removed (for access), do the functional test of the Standby Horizon Indicator (Ref. AMM 34–23–10–05). (5) Do this operational test of the Engine Anti–Icing System:

ACTION RESULT (a) On the overheadpanel ENGINE (42VU), set the L/R ENGINE (Anti Ice) to ON. At the center instrument panel, on the flight status panel (51VU), the blue advisory light L/R ENG ANTI–ICE comes on.

## Service Bulletin

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# 340–27–109

Page 29 of 96 ACTION RESULT (b) On the overheadpanel ENGINE (42VU), set the L/R ENGINE (Anti Ice) to OFF.

FOR A/C 402–439 POST SB340–71–053, and for A/C 440–459 with Option 243–2 installed. (A/C with ACT Engine Air Intake) (6) Do the Indication Lights and Power Relay Check for the Engine Air Intake (Ref AMM 30–20–00–05). FOR A/C ALL (7) Do this operational test of the relay function for the flight–idle stop (FI STOP) indicator light:

ACTION RESULT (a) Set the aircraft in ground configuration (L and R main landing–gear down and locked, weight on wheels). (b) At the L and R main landing–gear, install the WOW operating tool (TDO 5–4650224) on the WOW switches 5GA and 6GA, to set the aircraft in flight position. On the flight status panel 51VU, make sure the blue flight–idle stop (FI STOP) indicator light is not on.

(c) Remove the WOW operating tool from the L main landing–gear WOW switch 5GA. On the flight status panel 51VU, make sure the blue flight–idle stop (FI STOP) indicator light comes on. (d) Remove the WOW operating tool from the R main landing–gear WOW switch 6GA.

FOR A/C 079–459 POST Service Bulletin SAAB 340–34–139 (Mod No 3069) (8) Operational test of the Terrain Awareness and Warning System (TAWS) (a) Do the operational test of the TAWS (Ref. AMM 34–46–00–05). (b) Do the operational test of the TERRAIN INHIBIT Switch (Ref. AMM 34–46–25–04). (c) Do the operational test of the TERR AWARE and the G/S INHIBIT Pushbutton Switches (Ref. AMM 34–46–30–04). FOR A/C 079–459 POST Service Bulletin SAAB 340–34–166 (Mod No 3167) (d) Do the operational test of the Steep Approach Pushbutton Switch (Ref. AMM 34–46–35–04) FOR A/C 079–459 POST Service Bulletin SAAB 340–34–136 (Mod 3034) (9) Do the operational test of the NPA/GPS System (Ref. AMM 34–60–00–05–2, Procedure 10) FOR A/C 220–299 (10) Do this operational test of the Left Nacelle Air–Intake Indicating–Lamp:

ACTION RESULT (a) On the overhead panel TEST 1 (19VU), set and hold the LAMPS/UPR/LWR switch to UPR. On the overhead panel TEST 3 (54VU), the L INTAKE lamp comes on.

## Service Bulletin

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# 340–27–109

Page 30 of 96 ACTION RESULT (b) Release the LAMPS/UPR/LWR switch.

FOR A/C 220–459 (11) Do this operational test of the Avionics–Rack Air–Distribution:

ACTION RESULT (a) On the overhead panel DC ELEC (32VU), set the switches L AVION, R AVION and ESS AVION to OFF. (b) On the overhead panel DC ELEC (32VU), set the ESS AVION switch to ON. The avionics ventilation fan (7HN) operates. ( Feel by hand at the avionics rack manifold that the avionics ventilation fan moves air through the avionics rack.) (c) On the overhead panel DC ELEC (32VU), set the ESS AVION switch to OFF. The avionics ventilation fan (7HN) stops.

(d) On the overhead panel DC ELEC (32VU), set the switches L AVION, R AVION and ESS AVION to ON.
(12) Do the operational test of the Engine–Nacelle Fire–Detection System (Ref. AMM 26–11–00–05, Procedure 1). (13) Do the operational test of the Smoke Detectors (Ref. AMM 26–13–00–05). (14) Do the operational test of the Bleed–Air–Duct Leak–Detection System (Ref. AMM 36–23–00–05). (15) Do this operational test of the Fuel Quantity Indicators:

ACTION RESULT

(a) On the overhead panel TEST 1 (19VU), set and hold the FUEL test switch to L. On the center instrument panel and on the wing refuel/defuel panel, the left FUEL QTY indicators shows 1000 ± 50 lbs. (455 ± 23 kg). (b) Release the FUEL test switch to the center position. The left FUEL QTY indicators shows the fuel quantity in left tank.

(c) On the overhead panel TEST 1 (19VU), set and hold the FUEL test switch to R. On the center instrument panel and on the wing refuel/defuel panel, the right FUEL QTY indicators shows 1000 ± 50 lbs. (455 ± 23 kg). (d) Release the FUEL test switch to the center position. The right FUEL QTY indicators shows the fuel quantity in right tank.
(16) Do the operational test of the Fuel–Distribution Standby DC Boost–Pump (Ref. AMM 28–22–15–05). Do the test for both the LH and the RH side.

## Service Bulletin

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# 340–27–109

Page 31 of 96 (17) Do this operational test of the Flap Control System: WARNING : BE CAREFUL WHEN YOU OPERATE THE FLAPS. MAKE SURE THAT PERSONS ARE NOT NEAR THE FLAPS WHEN THE FLAPS OPERATES. THE FLAPS CAN CAUSE INJURY TO PERSONS. CAUTION : BE CAREFUL WHEN YOU OPERATE THE FLAPS. MAKE SURE THE AREA BELOW THE FLAPS IS CLEAR. DAMAGE TO THE FLAPS CAN OCCUR WHEN YOU LOWER THE FLAPS.

ACTION RESULT (a) On the center pedestal, make sure the flap control lever is in the UP position. (b) On the center pedestal, at panel 27VU, set the hydraulic pump switch to OVRD. The two pointers on the flap position indicator shows 0 °

.

(c) Move the flap control lever to the 15 ° position. The two pointers on the flap position indicator shows 15 °

. (d) On the overhead panel TEST 1 (19VU), press and hold the FLAPS test switch. On the TEST 1 panel (19VU), the FLAPS test light come on.

(e) Continue to press and hold the FLAPS test switch and move the flap control lever to the 20 ° position. – The two pointers on the flap position indicators do not respond – On the CWP, the FLAPS caution light start to flash – On the TEST 1 panel (19VU), the FLAPS test light start to flash. (f) Continue to press and hold the FLAPS test switch and move the flap control lever to the UP position. – The two pointers on the flap position indicators do not respond – On the CWP, the FLAPS caution light start to flash – On the TEST 1 panel (19VU), the FLAPS test light start to flash. (g) On the overhead panel TEST 1 (19VU), release the FLAPS test switch. – The two pointers on the flap position indicator shows 0 ° – On the CWP, the FLAPS caution light goes off – On the TEST 1 panel (19VU), the FLAPS test light goes off.

NOTE : Do the tests that follows with the engines running. (18) Start the engines (Ref. AMM 71–00–00–05). (19) Do the operational test of the AC generating and distribution system (Ref. AMM 24–20–00–05). (20) Do this operational test of the Pitot/Static Heating: (a) On the RH circuit breaker panel 12VU, open these circuit breakers

LABEL POS C/B
PROBE HEAT / STBY PITOT / PWR S–26 3HG PROBE HEAT / STBY PITOT / CONTROL S–27 7HG

## Service Bulletin

14 April 2014 

# 340–27–109

Page 32 of 96 ACTION RESULT (b) On the overhead panel ICE PROTECTION (21VU), make sure the STBY PITOT switch is set to OFF. On the overhead panel, ICE PROTECTION (21VU), the STBY PITOT lamp comes on.
NOTE : If you need to reset the lamp, push in one of the MASTER CAUTION switches on the LH/RH glareshield panel.

(c) On the RH circuit breaker panel 12VU, close these circuit breakers

LABEL POS C/B
PROBE HEAT / STBY PITOT / PWR S–26 3HG PROBE HEAT / STBY PITOT / CONTROL S–27 7HG

ACTION RESULT (d) On the overhead panel ICE PROTECTION (21VU), set the STBY PITOT switch to ON. On the overhead panel ICE PROTECTION 21VU, the indication lamp STBY PITOT goes off.

(21) Do this operational test of the Propellers De–icing System:

ACTION RESULT (a) On the overhead panel ICE PROTECTION (21VU), set the R PROP switch to MAX. – At the center instrument panel, on the flight status panel (51VU), the R PROP DE–ICE lamp comes on – On the overhead panel ICE PROTECTION (21VU), make sure the R PROP warning lamp is off. (b) On the RH circuit breaker panel 12VU, open the R PROPELLER/ PWR ØC circuit breaker (P–23) for approximately two minutes. – On the central warning panel 3WW, the amber ICE PROT warning lamp comes

on. – On the overhead panel ICE PROTECTION (21VU), the R PROP warning lamp comes on. (c) On the RH circuit breaker panel 12VU, close the R PROPELLER/ PWR ØC circuit breaker (P–23). (d) On the overhead panel ICE PROTECTION (21VU), set the R PROP switch to OFF, and then set the switch to MAX. – On the central warning panel 3WW, the amber ICE PROT warning lamp goes off – On the overhead panel ICE PROTECTION (21VU), the R PROP warning lamp goes off – On the flight status panel (51VU), the R PROP DE–ICE lamp 36HJ comes on. (e) On then overhead panel ICE PROTECTION (21VU), set the R PROP switch to OFF. On the flight status panel (51VU), the R PROP DE–ICE lamp goes off.

## Service Bulletin

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# 340–27–109

Page 33 of 96 ACTION RESULT (f) On the overhead panel ICE PROTECTION (21VU), set the STBY PITOT switch to OFF.

(22) Do the operational test of the Temperature Control System (Ref. AMM 21–60–00–05). (23) Do the operational test of the Pneumatic Air–Supply Distribution System (Ref. AMM 36–11–00–02). (24) Do the operational test of the Airfoil De–Icing System (Ref. AMM 30–10–00–05). (25) Do the operational test of the Autocoarsen System (Ref. AMM 61–22–00–05). (26) Shut down the engines (Ref. AMM 71–00–00).

F. FUNCTIONAL TEST
FOR A/C POST Service Bulletin SAAB 340–27–085 (Mod No 2650, 2859) (1) Prepare the aircraft for test:
CAUTION : BE CAREFUL WHEN YOU MOVE THE VANES. MOVE THE VANES IN A GENTLY WAY. DAMAGE TO THE VANES CAN OCCUR IF YOU PUSH THEM HARD TO THE OUTER POSITIONS. (a) Fasten the Angle of Attack (AOA) calibration tools to the LH and the RH AOA transmitters: – (LH) TES4054332–001 – (RH) TES4054332–002. (b) Turn the LH AOA vane fully clockwise. (c) Turn the RH AOA vane fully counter–clockwise. (d) Make sure the flaps are at 0 

. (e) On the LH circuit breaker panel 11VU, close the circuit breaker:

LABEL POS C/B
STAB & WING AUT CTL K–21 1HP
(f) On the overhead panel STAB & WING 18VU, set the switch AUTO CYCLING to OFF. (g) On the overhead panel ENGINE 42VU, set the L and R Engine Anti–Ice to OFF. (h) On the LH circuit breaker panel 9VU, open the circuit breaker:

LABEL POS C/B
STALL WARN CHAN 1 E–7 13WH
(i) On the RH circuit breaker panel 10VU, open these circuit breakers:

LABEL POS C/B
STALL WARN CHAN 2 L–6 2WH STICK PUSHER L–4 36WH
(j) Supply the 28 VDC external power (Ref. AMM 12–00–00, servicing). (k) At 1VU, make sure that the blue indication light in the ICE SPEED push–button switch is OFF.

## Service Bulletin

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# 340–27–109

Page 34 of 96 (2) Do the test of the stall warning functions, flap 0  and non–icing condition: (a) On the CWP, make sure the amber caution–lights L STALL FAIL and R STALL FAIL are illuminated. (b) On the RH circuit breaker panel 10VU, close the circuit breaker:

LABEL POS C/B
STICK PUSHER L–4 36WH
(c) On the CWP, make sure the amber caution–lights L STALL FAIL and R STALL FAIL remains ON. (d) On the RH circuit breaker panel 10VU, open the circuit breaker:

LABEL POS C/B
STICK PUSHER L–4 36WH
(e) On the LH circuit breaker panel 9VU, close the circuit breaker:

LABEL POS C/B
STALL WARN CHAN 1 E–7 13WH
(f) On the CWP, make sure the L STALL FAIL amber caution–light goes off. (g) On the RH circuit breaker panel 10VU, close the circuit breakers:

LABEL POS C/B
STALL WARN CHAN 2 L–6 2WH
(h) On the CWP, make sure the R STALL FAIL amber caution–light goes off. (i) At the LH and the RH main landing–gear, install the WOW operating tool (TDO 5–4650224) on the WOW switches 5GA and 6GA in flight position. (j) Turn the LH AOA vane counter–clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the LH and the RH control columns – the aural warning (continuous clacker). (k) Make sure the measured angle from the LH calibration tool is 12.5  ± 1 

. (l) Turn the LH AOA vane clockwise until the stall warning stops. (m) Turn the RH AOA vane clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the RH and the LH control columns – the aural warning (continuous clacker). (n) Make sure the measured angle from the RH calibration tool is 12.5  ± 1 

. (o) Turn the RH AOA vane counter–clockwise until the stall warning stops. (3) Do the test of the stall identification functions, flap 0  and non–icing condition: (a) On the RH circuit breaker panel 10VU, close the circuit breaker:

LABEL POS C/B
STICK PUSHER L–4 36WH

## Service Bulletin

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Page 35 of 96 (b) Make sure the PUSHER DISARM switch lights (31WH and 32WH) on the LH and RH side panels 5VU and 6VU do not come on. If the PUSHER DISARM switch lights (31WH and 32WH) come on, proceed as follows:

1 Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVE position and release it. Make sure the PUSHER DISARM lights goes off. (c) Turn the RH AOA vane slowly clockwise until the PUSH 2 lights of the indicator lights (1WH and 6WH) on the LH and RH instrument panels 3VU and 4VU come on. Make sure the PUSHER SYSTEM amber caution–light on the CWP (3WW) comes on. (d) Make sure the measured angle from the RH calibration tool is 19  ± 1 

. (e) Turn back the RH AOA vane slowly until the PUSH 2 lights goes off. (f) Pull the control column fully aft.
CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (g) Turn the LH AOA vane slowly counter–clockwise until the stick pusher is operated. Make sure the PUSH 1 and the PUSH 2 lights come on at the same time. (h) Make sure the measured angle from the LH calibration tool is 19  ± 1 

. (i) Turn back the LH AOA vane to an angle between the stall warning and the stall identification, e.g. 16  . Make sure the PUSH 1 and the PUSH 2 lights are on. (j) Turn the RH AOA vane fully counter–clockwise. Make sure the stick pusher is deactivated and the PUSH 1 and the PUSH 2 lights goes off.
CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (k) Turn the RH AOA vane slowly clockwise until the PUSH 1 and the PUSH 2 lights come on and the pusher is operated. (l) Turn the RH AOA vane back to, e.g. 16  and make sure the PUSH 1 and the PUSH 2 lights are still on and the pusher is operated. (m) Turn the LH AOA vane fully clockwise and make sure the PUSH 1 and the PUSH 2 lights goes off and the pusher is deactivated. (n) Turn the RH AOA vane fully counter–clockwise. (4) Do the test of the stall identification functions, flap 35  and non–icing condition: (a) Set the flap selector to 35 

. (b) Make sure that the PUSHER DISARM switch lights (31WH and 32WH) on the left and the right side panels 5VU and 6VU not are on. If the PUSHER DISARM switch lights (31WH and 32WH) are on, proceed as follows:

1 Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVATE position and release it. Make sure the PUSHER DISARM lights goes off.

## Service Bulletin

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Page 36 of 96 (c) Turn the RH AOA vane slowly clockwise until the PUSH 2 lights of the indicator lights (1WH and 6WH) on the left and right instrument panels 3VU and 4VU come on. Make sure the PUSHER SYSTEM amber caution–light on the CWP (3WW) comes on. (d) Make sure the measured angle from the RH calibration tool is 20 ° ± 1 °

. (e) Turn back the RH AOA vane slowly until the PUSH 2 lights goes off. (f) Pull the control column fully aft.
CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (g) Turn the LH AOA vane slowly counter–clockwise until the stick pusher is operated. Make sure the PUSH 1 and PUSH 2 lights come on at the same time. (h) Make sure the measured angle from the LH calibration tool is 20 ° ± 1 °

. (i) Turn back the LH AOA vane to an angle between the stall warning and the stall identification, e.g. 16 ° . Make sure the PUSH 1 and the PUSH 2 lights are on. (j) Turn the RH AOA vane fully counter–clockwise. Make sure the stick pusher is deactivated and the PUSH 1 and PUSH 2 lights goes off.
CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (k) Turn the RH AOA vane slowly clockwise until the PUSH 1 and the PUSH 2 lights come on and the pusher is operated. (l) Turn the RH AOA vane back to, e.g. 16  and make sure the PUSH 1 and the PUSH 2 lights are still on and the pusher is operated. (m) Turn the LH AOA vane fully clockwise and make sure the PUSH 1 and the PUSH 2 lights goes off and the pusher is deactivated. (n) Turn the RH AOA vane fully counter–clockwise. (5) Do the test of the stall warning functions, flap 0  and Engine Anti Ice selected ON: (a) Set the flap selector to 0 

. (b) Make sure that a minimum of 6 minutes has passed after weight off wheel and after power up. On the overhead panel ENGINE 42VU, set the Left Engine Anti Ice to ON. Make sure that the blue indication light in the push–button switch ICE SPEED on the instrument panel 1VU not come on. (c) Turn the LH AOA vane counter–clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the LH and the RH control columns – the aural warning (continuous clacker). (d) Make sure the measured angle from the LH calibration tool is 12.5  ± 1 

. (e) Turn the LH AOA vane clockwise until the stall warning stops. (f) Turn the RH AOA vane clockwise until the stall warning is activated. Make sure these warnings and cautions operate:

## Service Bulletin

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# 340–27–109

Page 37 of 96 – the stick shaker on the RH and the LH control columns – the aural warning (continuous clacker). (g) Make sure the measured angle from the RH calibration tool is 12.5  ± 1 

. (h) Turn the RH AOA vane counter–clockwise until the stall warning stops. (i) On the overhead panel ENGINE 42VU, set the Left Engine Anti Ice to OFF. (6) Do the test of the test functions: (a) Remove the WOW operating tool from the LH and the RH WOW switches 5GA and 6GA. (to make the aircraft in ground configuration). (b) Set and hold the STALL 1 switch on the TEST 1 panel (19VU) to the up position for at least 6 seconds: – make sure that the aural warning starts and the two stick shakers start to operate – make sure that the PUSH 1 lights and the PUSHER SYSTEM caution light come on. (c) Set and hold the STALL 2 switch on the TEST 1 panel (19VU) to the up position for at least 6 seconds: – make sure that the aural warning starts and the two stick shakers start to operate – make sure that the PUSH 2 lights and the PUSHER SYSTEM caution light come on. (d) Pull the control column aft and, at the same time, set the STALL 1 and the STALL 2 switches on the TEST 1 panel to the up position: – make sure that the aural warning starts and the two stick shakers start to operate – make sure that the PUSH 1 and PUSH 2 lights come on – make sure that the pusher starts to operate the control columns forward. NOTE : PUSHER SYSTEM caution light may come on during this test depending on the pusher actuator. This does not indicate a failure. (e) Pull the control column aft and, at the same time, set the STALL 1 and the STALL 2 switches on the TEST 1 panel to their lower position. – make sure that the aural warning starts and the two stick shakers start to operate (In this mode, the servo–actuator internal G–switch is tested, the operation of the stick pusher is not started.)
NOTE : PUSHER SYSTEM caution light may come on during this test depending on the pusher actuator. This does not indicate a failure. (7) Do the test of the pusher disarm function: (a) Push the PUSHER DISARM switch light (31WH) on the left side panel 5VU. Make sure the LH and the RH PUSHER DISARM switch lights (31WH and 32WH) on the left and the right side panels 5VU and 6VU come on. (b) Set the STALL 1 and the STALL 2 switches (29WH and 30WH) on the TEST 1 panel 19VU to the up position. Make sure there is no PUSH 1 or PUSH 2 indication on the left and the right instrument panels 3VU and 4VU. (c) Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVATE position and release it. Make sure the PUSHER DISARM lights goes off. (d) Push the PUSHER DISARM switch light (32WH) on the right side panel 6VU. Make sure the LH and the RH PUSHER DISARM switch lights (31WH and 32WH) on the left and the right side panels 5VU and 6VU come on. (e) Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVATE position and release it. Make sure the PUSHER DISARM lights goes off.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 38 of 96 (8) Do the test of the ICE SPEED push–button lamp: (a) On the TEST 1 panel 19VU, set the lamp test switch to the LWR position and make sure that the blue indication light in the ICE SPEED push–button switch not come on.
FOR A/C POST Service Bulletin SAAB 340–27–075 (Mod No 2650) (9) Prepare the aircraft for test:
CAUTION : BE CAREFUL WHEN YOU MOVE THE VANES. MOVE THE VANES IN A GENTLY WAY. DAMAGE TO THE VANES CAN OCCUR IF YOU PUSH THEM HARD TO THE OUTER POSITIONS. (a) Fasten the Angle of Attack (AOA) calibration tools to the LH and the RH AOA transmitters: – (LH) TES4054332–001 – (RH) TES4054332–002. (b) Turn the LH AOA vane fully clockwise. (c) Turn the RH AOA vane fully counter–clockwise. (d) Make sure the flaps are at 0 

. (e) On the LH circuit breaker panel 11VU, close the circuit breaker:

LABEL POS C/B
STAB & WING AUT CTL K–21 1HP
(f) On the overhead panel STAB & WING 18VU, set the switch AUTO CYCLING to OFF. (g) On the overhead panel ENGINE 42VU, set the L and R Engine Anti–Ice to OFF. (h) On the LH circuit breaker panel 9VU, open the circuit breaker:

LABEL POS C/B
STALL WARN CHAN 1 E–7 13WH
(i) On the RH circuit breaker panel 10VU, open these circuit breakers:

LABEL POS C/B
STALL WARN CHAN 2 L–6 2WH STICK PUSHER L–4 36WH
(j) Supply the 28 VDC external power (Ref. AMM 12–00–00, servicing). (k) At 1VU, make sure that the blue indication light in the ICE SPEED push–button switch is OFF. (10) Do the test of the stall warning functions, flap 0  and non–icing condition: (a) On the CWP, make sure the amber caution–lights L STALL FAIL and R STALL FAIL are illuminated. (b) On the RH circuit breaker panel 10VU, close the circuit breaker:

LABEL POS C/B
STICK PUSHER L–4 36WH
(c) On the CWP, make sure the amber caution–lights L STALL FAIL and R STALL FAIL remains ON. (d) On the RH circuit breaker panel 10VU, open the circuit breaker:

## Service Bulletin

14 April 2014 

# 340–27–109

Page 39 of 96 LABEL POS C/B
STICK PUSHER L–4 36WH
(e) On the LH circuit breaker panel 9VU, close the circuit breaker:

LABEL POS C/B
STALL WARN CHAN 1 E–7 13WH
(f) On the CWP, make sure the L STALL FAIL amber caution–light goes off. (g) On the RH circuit breaker panel 10VU, close the circuit breakers:

LABEL POS C/B
STALL WARN CHAN 2 L–6 2WH
(h) On the CWP, make sure the R STALL FAIL amber caution–light goes off. (i) At the LH and the RH main landing–gear, install the WOW operating tool (TDO 5–4650224) on the WOW switches 5GA and 6GA in flight position. (j) Turn the LH AOA vane counter–clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the LH and the RH control columns – the aural warning (continuous clacker). (k) Make sure the measured angle from the LH calibration tool is 14.5  ± 1 

. (l) Turn the LH AOA vane clockwise until the stall warning stops. (m) Turn the RH AOA vane clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the RH and the LH control columns – the aural warning (continuous clacker). (n) Make sure the measured angle from the RH calibration tool is 14.5  ± 1 

. (o) Turn the RH AOA vane counter–clockwise until the stall warning stops. (11) Do the test of the stall identification functions, flap 0  and non–icing condition: (a) On the RH circuit breaker panel 10VU, close the circuit breaker:

LABEL POS C/B
STICK PUSHER L–4 36WH
(b) Make sure the PUSHER DISARM switch lights (31WH and 32WH) on the LH and RH side panels 5VU and 6VU do not come on. If the PUSHER DISARM switch lights (31WH and 32WH) come on, proceed as follows:

1 Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVE position and release it. Make sure the PUSHER DISARM lights goes off. (c) Turn the RH AOA vane slowly clockwise until the PUSH 2 lights of the indicator lights (1WH and 6WH) on the LH and RH instrument panels 3VU and 4VU come on. Make sure the PUSHER SYSTEM amber caution–light on the CWP (3WW) comes on. (d) Make sure the measured angle from the RH calibration tool is 19  ± 1 

. (e) Turn back the RH AOA vane slowly until the PUSH 2 lights goes off.

## Service Bulletin

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# 340–27–109

Page 40 of 96 (f) Pull the control column fully aft. CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (g) Turn the LH AOA vane slowly counter–clockwise until the stick pusher is operated. Make sure the PUSH 1 and the PUSH 2 lights come on at the same time. (h) Make sure the measured angle from the LH calibration tool is 19  ± 1 

. (i) Turn back the LH AOA vane to an angle between the stall warning and the stall identification, e.g. 16  . Make sure the PUSH 1 and the PUSH 2 lights are on. (j) Turn the RH AOA vane fully counter–clockwise. Make sure the stick pusher is deactivated and the PUSH 1 and the PUSH 2 lights goes off. CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (k) Turn the RH AOA vane slowly clockwise until the PUSH 1 and the PUSH 2 lights come on and the pusher is operated. (l) Turn the RH AOA vane back to, e.g. 16  and make sure the PUSH 1 and the PUSH 2 lights are still on and the pusher is operated. (m) Turn the LH AOA vane fully clockwise and make sure the PUSH 1 and the PUSH 2 lights goes off and the pusher is deactivated. (n) Turn the RH AOA vane fully counter–clockwise. (12) Do the test of the stall identification functions, flap 35  and non–icing condition: (a) Set the flap selector to 35 

. (b) Make sure that the PUSHER DISARM switch lights (31WH and 32WH) on the left and the right side panels 5VU and 6VU not are on. If the PUSHER DISARM switch lights (31WH and 32WH) are on, proceed as follows:
1 Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVATE position and release it. Make sure the PUSHER DISARM lights goes off. (c) Turn the RH AOA vane slowly clockwise until the PUSH 2 lights of the indicator lights (1WH and 6WH) on the left and right instrument panels 3VU and 4VU come on. Make sure the PUSHER SYSTEM amber caution–light on the CWP (3WW) comes on. (d) Make sure the measured angle from the RH calibration tool is 20 ° ± 1 °

. (e) Turn back the RH AOA vane slowly until the PUSH 2 lights goes off. (f) Pull the control column fully aft. CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (g) Turn the LH AOA vane slowly counter–clockwise until the stick pusher is operated. Make sure the PUSH 1 and PUSH 2 lights come on at the same time.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 41 of 96 (h) Make sure the measured angle from the LH calibration tool is 20 ° ± 1 °

. (i) Turn back the LH AOA vane to an angle between the stall warning and the stall identification, e.g. 16 ° . Make sure the PUSH 1 and the PUSH 2 lights are on. (j) Turn the RH AOA vane fully counter–clockwise. Make sure the stick pusher is deactivated and the PUSH 1 and PUSH 2 lights goes off.
CAUTION : DO NOT OPERATE THE STALL WARNING PUSHER SYSTEM FOR MORE THAN A MAXIMUM OF 10 SECONDS CONTINUOUSLY. ALLOW THE SYSTEM A MINIMUM OF 1 MINUTE OF NON–OPERATION BEFORE YOU CONTINUE THE TEST. IF YOU RUN THE PUSHER SYSTEM FOR MORE THAN 10 SECONDS, THE PUSHER SERVO ACTUATORS CAN OVERHEAT. (k) Turn the RH AOA vane slowly clockwise until the PUSH 1 and the PUSH 2 lights come on and the pusher is operated. (l) Turn the RH AOA vane back to, e.g. 16  and make sure the PUSH 1 and the PUSH 2 lights are still on and the pusher is operated. (m) Turn the LH AOA vane fully clockwise and make sure the PUSH 1 and the PUSH 2 lights goes off and the pusher is deactivated. (n) Turn the RH AOA vane fully counter–clockwise. (13) Do the test of the stall warning functions, flap 0  and Engine Anti Ice selected ON: (a) Set the flap selector to 0 

. (b) Make sure that a minimum of 6 minutes has passed after weight off wheel and after power up. On the overhead panel ENGINE 42VU, set the Left Engine Anti Ice to ON. Make sure that the blue indication light in the push–button switch ICE SPEED on the instrument panel 1VU not come on. (c) Turn the LH AOA vane counter–clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the LH and the RH control columns – the aural warning (continuous clacker). (d) Make sure the measured angle from the LH calibration tool is 14.5  ± 1 

. (e) Turn the LH AOA vane clockwise until the stall warning stops. (f) Turn the RH AOA vane clockwise until the stall warning is activated. Make sure these warnings and cautions operate: – the stick shaker on the RH and the LH control columns – the aural warning (continuous clacker). (g) Make sure the measured angle from the RH calibration tool is 14.5  ± 1 

. (h) Turn the RH AOA vane counter–clockwise until the stall warning stops. (i) On the overhead panel ENGINE 42VU, set the Left Engine Anti Ice to OFF. (14) Do the test of the test functions: (a) Remove the WOW operating tool from the LH and the RH WOW switches 5GA and 6GA. (to make the aircraft in ground configuration). (b) Set and hold the STALL 1 switch on the TEST 1 panel (19VU) to the up position for at least 6 seconds: – make sure that the aural warning starts and the two stick shakers start to operate – make sure that the PUSH 1 lights and the PUSHER SYSTEM caution light come on. (c) Set and hold the STALL 2 switch on the TEST 1 panel (19VU) to the up position for at least 6 seconds:

## Service Bulletin

14 April 2014 

# 340–27–109

Page 42 of 96 – make sure that the aural warning starts and the two stick shakers start to operate – make sure that the PUSH 2 lights and the PUSHER SYSTEM caution light come on. (d) Pull the control column aft and, at the same time, set the STALL 1 and the STALL 2 switches on the TEST 1 panel to the up position: – make sure that the aural warning starts and the two stick shakers start to operate – make sure that the PUSH 1 and PUSH 2 lights come on – make sure that the pusher starts to operate the control columns forward. NOTE : PUSHER SYSTEM caution light may come on during this test depending on the pusher actuator. This does not indicate a failure. (e) Pull the control column aft and, at the same time, set the STALL 1 and the STALL 2 switches on the TEST 1 panel to their lower position. – make sure that the aural warning starts and the two stick shakers start to operate (In this mode, the servo–actuator internal G–switch is tested, the operation of the stick pusher is not started.)
NOTE : PUSHER SYSTEM caution light may come on during this test depending on the pusher actuator. This does not indicate a failure. (15) Do the test of the pusher disarm function: (a) Push the PUSHER DISARM switch light (31WH) on the left side panel 5VU. Make sure the LH and the RH PUSHER DISARM switch lights (31WH and 32WH) on the left and the right side panels 5VU and 6VU come on. (b) Set the STALL 1 and the STALL 2 switches (29WH and 30WH) on the TEST 1 panel 19VU to the up position. Make sure there is no PUSH 1 or PUSH 2 indication on the left and the right instrument panels 3VU and 4VU. (c) Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVATE position and release it. Make sure the PUSHER DISARM lights goes off. (d) Push the PUSHER DISARM switch light (32WH) on the right side panel 6VU. Make sure the LH and the RH PUSHER DISARM switch lights (31WH and 32WH) on the left and the right side panels 5VU and 6VU come on. (e) Set the spring–loaded STICK PUSHER RESET switch (27WH) on the RH electrical center 306VU to the ACTIVATE position and release it. Make sure the PUSHER DISARM lights goes off. (16) Do the test of the ICE SPEED push–button lamp: (a) On the TEST 1 panel 19VU, set the lamp test switch to the LWR position and make sure that the blue indication light in the ICE SPEED push–button switch not come on.
FOR A/C ALL

G. JOB CLOSE–UP (1) Remove all the tools and equipment from the work area. Make sure the work area is clean. (2) Close the access:
REF. FIG. 1 (a) At the avionics rack, install the access panels 210AZ and 220AZ. (b) In the flight compartment:

1 Install these access panels:

## Service Bulletin

14 April 2014 

# 340–27–109

Page 43 of 96 – 117BZ (floor panel) – 215BZ – 215DZ – 215FZ – 215GZ – 216BZ – 216DZ – 216FZ – 216GZ. FOR A/C 004–219
2 If removed, install these access panels: – 215EZ – 216EZ. FOR A/C 402–439 POST SB340–71–053, and for A/C 440–459 with Option 243–2 installed. (A/C with ACT Engine Air Intake)
3 Install these access panels: – 210BZ – 210CZ – 210EZ – 210GZ – 215EZ – 216EZ. FOR A/C ALL (3) Remove all the tools and equipment from the work area. Make sure the work area is clean.

3. MATERIAL INFORMATION

A. Modification Kit No SAAB 340–27–109–01 contains: NOTE : The Modification Kit contains the items for several configurations of the Saab 340. Some items (wires and contacts) are only applicable for some of the aircraft. Where an item has a specific effectivity it is given in the Remarks column. Items without aircraft effectivity listed in the Remarks column are effective for all aircraft.
Item Part Number Qty Nomenclature Designation Remarks 1 7239305–823 1 Relay console – At 305VU 2 7239305–091 2 Bracket – For the relay consoles (1) and (6) 3 7239305–092 2 Bracket – For the relay consoles (1) and (6) 4 7239224–103 4 Panel fastener – For the relay consoles (1) and (6) 5 TPEM–7 700mm Edge string – For the relay consoles (1) and (6) (and for the optional oxygen bottle)

## Service Bulletin

14 April 2014 

# 340–27–109

Page 44 of 96 Item Remarks Designation Nomenclature Qty Part Number 6 7239305–824 1 Relay console – At 306VU
7 HCTE–1250–0– BLACK 100MM Convoluted tubing – At 306VU

– MS20470AD4–5 16 Rivet BJ4–5 – To attach the panel fasteners(4) to the brackets (2) and (3)
– MS20470AD5–5 12 Rivet BJ5–5 – To attach the brackets (2) and (3) to structure
12 MS20470AD4–6 8 Rivet BJ4–6 – To attach 305VN–G and 306VN–G (23)
13 7292183–005 1 Label 2WHC At 12VU S–8
14 7292183–007 1 Label “ICE SPD CANCEL” 3WHC At 1VU

15 4668–59 1 Illuminated pushbutton switch 3WHC At 1VU

16 7239791–512 1 Term block resistor 6WHC At 306VT
17 YHLZD–8 1 T.B. Diode 5WHC At 305VU
18 M83536–6–022L O/T M83536–6–022M 3 Relay 21GA, 7WHC, 50WH At 305VU and 306VU

19 RSE120060 O/T S220A4A0 3 Relay socket 21GA–J1, 7WHC–J1, 50WH–J1 At 305VU and 306VU

20 M83536–2–024L O/T M83536–2–024M 2 Relay 35HL, 36HL At 305VU and 306VU

21 RSE120050 O/T S210A4A0 2 Relay socket 35HL–J1, 36HL–J1 At 305VU and 306VU

22 TY3–G1 8 Clamp bracket – At 305VU, 306VU and 405VU 23 YHLZG–16–1 2 Grounding block 305VN–G, 306VN–G At 305VU and 306VU

## Service Bulletin

14 April 2014 

# 340–27–109

Page 45 of 96 Item Remarks Designation Nomenclature Qty Part Number 25 M39029/101–553 48 Contact 15GA–J1, 21GA–J1, 35HL–J1, 36HL–J1, 37WH–J1, 50WH–J1, 7WHC–J1, 42WW–J1 55HP–J1
26 M39029/57–354 16 Contact 3WHC–P1, 3WH–P1, 4WH–P1

27 YHMM22–2DB8 19 Contact 4WHC, 5WHC, 6WHC, 9WHC, 305VN–G, 306VN–G, 306VT–R 405VN 301VT
28 D–436–36 22 Butt splice 201VS–VA, 203VS–VA, 292VS–A, 293VS–A, 292VS–B, 293VS–B, 292VS–C, 293VS–C, 1VS–CA, 1VS–CB, 1VS–CC, 160VS–A, 305VS–GJ, 305VS–GK, 305VS–U, 305VS–UA, 306VS–FA, 306VS–V, 306VS–VA, 405VS–N, Unmarked splices qty. 4 201VS–VA valid for A/C 004–078. 203VS–VA valid for A/C 079–459. 292VS–A and 293VS–A valid for A/C004–219. 292VS–B & –C and 293VS–B & –C valid for A/C POST SB340–71–053 or with Option 243–2 installed. (Unmarked splices qty. 4 to extend wires WH375 & WH376 and HL13 & HL25 or HL64 & HL67)
29 D–436–37 1 Butt splice 306VS–VB

## Service Bulletin

14 April 2014 

# 340–27–109

Page 46 of 96 Item Remarks Designation Nomenclature Qty Part Number 30 MS25036–153 2 Terminal lug 2WHC:L/1, 36WH:L/1 31 MS25036–146 3 Terminal lug 2WHC, 1HL, 2HL
32 CTA–0166 3 MTC–Contact 205VU–J17 Valid for A/C 079–459
33 CTA–0165 3 MTC–Contact 205VU–P17 Valid for A/C 079–459 34 CTA–0036 1 Butt solder sleeve kit 91VP–P2, 92VP–P2 Valid for A/C 220–459
35 M39029/5–115 2 Contact 3CN–P1
– RNF–100 3/16 1 Marker sleeve (GA) 305VS–GJ

– RNF–100 3/16 1 Marker sleeve (GA) 305VS–GK

– RNF–100 3/16 1 Marker sleeve (WH) 306VS–FA

– RNF–100 3/16 1 Marker sleeve (HL) 292VS–A Valid for A/C 004–219
– RNF–100 3/16 1 Marker sleeve (HL) 293VS–A Valid for A/C 004–219
– RNF–100 3/16 1 Marker sleeve (HL) 292VS–B Valid for A/C 402–439 POST SB340–71–053 and for A/C 440–459 withOption 243–2 installed.
– RNF–100 3/16 1 Marker sleeve (HL) 293VS–B Valid for A/C 402–439 POST SB340–71–053 and for A/C 440–459 withOption 243–2 installed.
– RNF–100 3/16 1 Marker sleeve (HL) 292VS–C Valid for A/C 402–439 POST SB340–71–053 and for A/C 440–459 withOption 243–2 installed.

## Service Bulletin

14 April 2014 

# 340–27–109

Page 47 of 96 Item Remarks Designation Nomenclature Qty Part Number
– RNF–100 3/16 1 Marker sleeve (HL) 293VS–C Valid for A/C 402–439 POST SB340–71–053 and for A/C 440–459 withOption 243–2 installed.
– RNF–100 3/16 1 Marker sleeve (WHC) 201VS–VA Valid for A/C 004–078
– RNF–100 3/16 1 Marker sleeve (WHC) 203VS–VA Valid for A/C 079–459
– RNF–100 3/16 1 Marker sleeve (WHC) 1VS–CA

– RNF–100 3/16 1 Marker sleeve (WHC) 1VS–CB

– RNF–100 3/16 1 Marker sleeve (WHC) 1VS–CC

– RNF–100 3/16 1 Marker sleeve (WHC) 160VS–A

– RNF–100 3/16 1 Marker sleeve (WHC) 305VS–U

– RNF–100 3/16 1 Marker sleeve (WHC) 305VS–UA

– RNF–100 3/16 1 Marker sleeve (WHC) 306VS–V

– RNF–100 3/16 1 Marker sleeve (WHC) 306VS–VA

– RNF–100 3/16 1 Marker sleeve (WHC) 306VS–VB

– RNF–100 3/16 1 Marker sleeve (WH) 405VS–N– RNF–100 3/16 200mm Shrinkable tubing – At the 4 unmarked splices. – RNF–100 1/8 200mm Shrinkable tubing – For parking of contacts at 3WH–P1 and 4WH–P1. – RNF–100 1/4 100mm Shrinkable tubing – For parking of terminal lug at C/B 36WH.
– – 1 Marker decal 21GA
– – 2 Marker decal 2WHC

## Service Bulletin

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# 340–27–109

Page 48 of 96 Item Remarks Designation Nomenclature Qty Part Number
– – 1 Marker decal 3WHC
– – 1 Marker decal 4WHC
– – 1 Marker decal 5WHC
– – 1 Marker decal 6WHC
– – 1 Marker decal 7WHC
– – 1 Marker decal 9WHC
– – 1 Marker decal 1HL
– – 1 Marker decal 2HL
– – 1 Marker decal 35HL
– – 1 Marker decal 36HL
– – 1 Marker decal 36WH
– – 1 Marker decal 50WH
– – 1 Marker decal 305VN–G
– – 1 Marker decal 306VN–G
– – 1 Marker decal 21GA–J1
– – 1 Marker decal 3WH–P1
– – 1 Marker decal 4WH–P1
– – 1 Marker decal 37WH–J1
– – 1 Marker decal 50WH–J1
– – 1 Marker decal 7WHC–J1
– – 1 Marker decal 35HL–J1
– – 1 Marker decal 36HL–J1
– – 1 Marker decal 42WW–J1
– – 1 Marker decal 91VP–P2
– – 1 Marker decal 92VP–P2
– – 1 Marker decal 205VU–J17
– – 1 Marker decal 205VU–P17
– 6127432–016 O/T IT18R.NN901 O/T IT18RNN3P 13 Marker plate – at 2WHC, 3WHC, 36WH, 1HL, 2HL, 3WH–P1, 4WH–P1, 37WH–J1, 42WW–J1, 91VP–P2, 92VP–P2, 205VU–J17, 205VU–P17

## Service Bulletin

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# 340–27–109

Page 49 of 96 Item Remarks Designation Nomenclature Qty Part Number – 55T9081–16–9 1700mm Wire WHC36–1601 ( AWG16 )
– 55T8015–24–9 2000mm Wire GA3001–2401
– 55T8015–24–9 2000mm Wire GA3002–2401
– 55T8015–24–9 300mm Wire GA3003–2401
– 55T8015–24–9 300mm Wire GA3004–2401
– 55T8015–24–9 1000mm Wire WH375–2401
– 55T8015–24–9 1000mm Wire WH376–2401
– 55T8015–24–9 300mm Wire WH3000–2401
– 55T8015–24–9 1500mm Wire WH3003–2401
– 55T8015–24–9 1500mm Wire WH3004–2401
– 55T8015–24–9 1200mm Wire WH3005–2401
– 55T8015–24–9 2500mm Wire HL13–2401 Valid for A/C 004–219
– 55T8015–24–9 3000mm Wire HL25–2401 Valid for A/C 004–219
– 55T8015–24–9 2500mm Wire HL64–2401 Valid for A/C 220–459
– 55T8015–24–9 3000mm Wire HL67–2401 Valid for A/C 220–459
– 55T8015–24–9 2500mm Wire HL3000–2401
– 55T8015–24–9 3000mm Wire HL3001–2401 Valid for A/C 004–219
– 55T8015–24–9 1700mm Wire HL3002–2401
– 55T8015–24–9 2500mm Wire HL3003–2401
– 55T8015–24–9 2500mm Wire HL3004–2401 Valid for A/C 004–219
– 55T8015–24–9 1700mm Wire HL3005–2401
– 55T8015–24–9 5000mm Wire HL3006–2401 Valid for A/C 220–459, use 3000 mm for A/C PRE SB340–71–053
– 55T8015–24–9 5000mm Wire HL3007–2401 Valid for A/C 220–459, use 2500 mm for A/C PRE SB340–71–053

## Service Bulletin

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# 340–27–109

Page 50 of 96 Item Remarks Designation Nomenclature Qty Part Number
– 55T8015–24–9 6000mm Wire HL3008–2401 Valid for A/C 402–439 POST SB340–71–053 and for A/C 440–459 withOption 243–2 installed (ACT Engine Air Intake)
– 55T8015–24–9 6000mm Wire HL3009–2401 Valid for A/C 402–439 POST SB340–71–053 and for A/C 440–459 withOption 243–2 installed (ACT Engine Air Intake)
– 55T8015–24–9 300mm Wire WHC1–2401
– 55T8015–24–9 500mm Wire WHC2–2401
– 55T8015–24–9 500mm Wire WHC3–2401
– 55T8015–24–9 1500mm Wire WHC4–2401
– 55T8015–24–9 1500mm Wire WHC5–2401
– 55T8015–24–9 300mm Wire WHC6–2401
– 55T8015–24–9 300mm Wire WHC7–2401
– 55T8015–24–9 300mm Wire WHC8–2401
– 55T8015–24–9 300mm Wire WHC9–2401
– 55T8015–24–9 300mm Wire WHC10–2401
– 55T8015–24–9 300mm Wire WHC11–2401
– 55T8015–24–9 300mm Wire WHC12–2401
– 55T8015–24–9 300mm Wire WHC13–2401
– 55T8015–24–9 1500mm Wire WHC14–2401
– 55T8015–24–9 5500mm Wire WHC15–2401
– 55T8015–24–9 4500mm Wire WHC16–2401 Use 3000 mm for A/C 079–459
– 55T8015–24–9 4500mm Wire WHC17–2401 Use 3000 mm for A/C 079–459
– 55T8015–24–9 500mm Wire WHC18–2401 Valid for A/C 004–078
– 55T8015–24–9 1500mm Wire WHC19–2401
– 55T8015–24–9 1500mm Wire WHC20–2401
– 55T8015–24–9 500mm Wire WHC21–2401

## Service Bulletin

14 April 2014 

# 340–27–109

Page 51 of 96 Item Remarks Designation Nomenclature Qty Part Number
– 55T8015–24–9 500mm Wire WHC22–2401
– 55T8015–24–9 1700mm Wire WHC23–2401
– 55T8015–24–9 2200mm Wire WHC24–2401
– 55T8015–24–9 300mm Wire WHC25–2401
– 55T8015–24–9 1700mm Wire WHC26–2401
– 55T8015–24–9 300mm Wire WHC27–2401
– 55T8015–24–9 300mm Wire WHC28–2401
– 55T8015–24–9 1700mm Wire WHC29–2401
– 55T8015–24–9 2200mm Wire WHC30–2401
– 55T8015–24–9 5500mm Wire WHC31–2401
– 55T8015–24–9 3500mm Wire WHC32–2401
– 55T8015–24–9 4500mm Wire WHC33–2401
– 55T8015–24–9 4500mm Wire WHC34–2401
– 55T8015–24–9 1200mm Wire WHC35–2401
– 55T8015–24–9 1200mm Wire WHC37–2401
– 55T8015–24–9 6000mm Wire WHC38–2401 Use 4500 mm for A/C 079–459
– 55T8015–24–9 300mm Wire WHC39–2401 Valid for A/C 004–078
– 55T8015–24–9 1500mm Wire WHC40–2401

– 55T8015–24–9 1000mm Wire WHC41–2401 Valid for A/C 079–459
– 55T8015–24–9 1500mm Wire WHC44–2401 Valid for A/C 079–459
– 55T8015–24–9 2200mm Wire WHC45–2401 Valid for A/C 079–459
– 55T8015–24–9 1300mm Wire WHC46–2401 Valid for A/C 079–459
– 55T8015–24–9 2000mm Wire WHC47–2401 Valid for A/C 079–459
– 55T8015–24–9 300mm Wire WHC48–2401
– 55T8015–24–9 1700mm Wire WH205–2401 For A/C 004–379
– 55T8015–24–9 1700mm Wire WH206–2401 For A/C 004–379
– 55T8015–24–9 500mm Wire WH207–2401 For A/C 004–379
– 55T8015–24–9 500mm Wire WH208–2401 For A/C 004–379
– 55T8015–24–9 2000mm Wire WH209–2401 For A/C 004–379
– 55T8015–24–9 1700mm Wire WHB205–2401 For A/C 380–459

## Service Bulletin

14 April 2014 

# 340–27–109

Page 52 of 96 Item Remarks Designation Nomenclature Qty Part Number
– 55T8015–24–9 1700mm Wire WHB206–2401 For A/C 380–459
– 55T8015–24–9 500mm Wire WHB207–2401 For A/C 380–459
– 55T8015–24–9 500mm Wire WHB208–2401 For A/C 380–459
– 55T8015–24–9 2000mm Wire WHB209–2401 For A/C 380–459

B. Local supply

Item Part Number Qty Nomenclature Designation Remarks
– – 1 “INOP” SIGN – To cover label“ICE SPD CANCEL” AT 1VU – NITTO 665 AR Silicone tape – – – AR Lacing cord –
– – AR Cable–tie –
– – AR Alodine 1500 –
– PR 1422 B–1/2 A/R Sealant – MIL–S–8802 Type II, Class B–1/2– Methyl–Ethyl–Ketone (MEK) A/R Cleaning agent – TT–M–261

NOTE : Equivalent materials can be used for listed items, Ref. SRM 51–33–00.

C. Removal

Item Part Number Qty Nomenclature Designation Remarks

R111 4668–28 1 Push button switch 1WHA At 1VU

R112 7292183–001 1 Label “ICE SPD” 1VU

## Service Bulletin

14 April 2014 

# 340–27–109

Page 53 of 96 215BZ 216BZ

215CZ 216CZ

215FZ 216FZ
215DZ 216DZ 10 VU

215GZ 11VU 215EZ 216EZ

12VU

216GZ 210BZ 210CZ

210EZ 210GZ 117AL 210AL

118AR 210AR 117BZ

STA 186.0 STA 215.0 A

210AZ

AVIONIC

RACK 220AZ

VIEW A

A31586 

### Access Panels – Location FIG. 1

## Service Bulletin

14 April 2014 

# 340–27–109

Page 54 of 96      

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### Wiring Diagram System HL – PRE MOD for A/C 004–219 FIG. 2

## Service Bulletin

14 April 2014 

# 340–27–109

Page 55 of 96      

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### Wiring Diagram System HL – POST MOD for A/C 004–219 FIG. 3

## Service Bulletin

14 April 2014 

# 340–27–109

Page 56 of 96 A30704      

 

 	

	

  



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PRE MOD



### Wiring Diagram System HL – PRE MOD: for A/C 220–401, and for A/C 402–439 Pre SB340–71–053, and for A/C 440–459 without Option 243–2. (A/C with COX Engine Air Intake) FIG. 4

## Service Bulletin

14 April 2014 

# 340–27–109

Page 57 of 96      

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### Wiring Diagram System HL – POST MOD: for A/C 220–401, and for A/C 402–439 Pre SB340–71–053, and for A/C 440–459 without Option 243–2. (A/C with COX Engine Air Intake) FIG. 5

## Service Bulletin

14 April 2014 

# 340–27–109

Page 58 of 96 

A31580 

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### Wiring Diagram System HL – PRE MOD: for A/C 402–439 Post SB340–71–053, and for A/C 440–459 with Option 243–2 Installed. (A/C with ACT Engine Air Intake) FIG. 6

## Service Bulletin

14 April 2014 

# 340–27–109

Page 59 of 96   

  

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A31579 

### POST MOD

Wiring Diagram System HL – POST MOD: for A/C 402–439 Post SB340–71–053, and for A/C 440–459 with Option 243–2 Installed. (A/C with ACT Engine Air Intake) FIG. 7

## Service Bulletin

14 April 2014 

# 340–27–109

Page 60 of 96   

     

 

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### Wiring Diagram System WH – PRE MOD for A/C 004–459 FIG. 8

## Service Bulletin

14 April 2014 

# 340–27–109

Page 61 of 96       

 

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### Wiring Diagram System WH – POST MOD for A/C 004–459 FIG. 9

## Service Bulletin

14 April 2014 

# 340–27–109

Page 62 of 96 A31381  "	
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Wiring Diagram System WH – PRE/POST MOD for A/C 079–108 FIG. 10

## Service Bulletin

14 April 2014 

# 340–27–109

Page 63 of 96 A30883 " "







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### Wiring Diagram System GA – PRE MOD for A/C 004–459

FIG. 11

## Service Bulletin

14 April 2014 

# 340–27–109

Page 64 of 96 A30884 !

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### POST MOD

Wiring Diagram System GA – POST MOD for A/C 004–459 FIG. 12

## Service Bulletin

14 April 2014 

# 340–27–109

Page 65 of 96 B3 A3

B1 A1

Z

WH208–24 WH207–24

WH206–24 WH205–24 HP X2 X1

A2

B2 WH101–24

WH102–24 CABIN COMPARTMENT 405VU

J1 J1 55HP

FLAP 3CN CONTR BOX

P1

9 WH209–24 405VS N 405VN A D

A31360PART OF DWG REF. 7227390–812PART OF DWG REF. 7227390–813PART OF DWG REF. 7227390–814PART OF DWG REF. 7227390–815PART OF DWG REF. 7227390–817



### Wiring Diagram System WH – POST MOD for A/C 004–379 FIG. 13

## Service Bulletin

14 April 2014 

# 340–27–109

Page 66 of 96 A31361 9 Z A1

B1 A3

B3

WHB209–24WHB207–24WHB208–24 WHB206–24 WHB205–24 HP X2 X1

405VS N A2

B2 WH

WHDWG REF. 7227390–522 SHEET 1 OF 1 REV. CABIN COMPARTMENT 405VU

J1 J1 55HP

FLAP 3CN CONTR BOX

A 405VN P1

D



### Wiring Diagram System WHB – POST MOD for A/C 380–459 FIG. 14Service Bulletin14 April 2014340–27–109Page 67/68 of 96A23899( 
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	!" $ %Wiring Diagram System WHA – Pre Mod for A/C 004–078FIG. 15

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 68Service Bulletin14 April 2014340–27–109Page 69/70 of 96A29404 
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 70Service Bulletin14 April 2014340–27–109Page 71/72 of 96A31407

  
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 72Service Bulletin14 April 2014340–27–109Page 73/74 of 96A30245

  
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 74Service Bulletin14 April 2014340–27–109Page 75/76 of 96A31406( 
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 76Service Bulletin14 April 2014340–27–109Page 77/78 of 96A31405( 
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 78Service Bulletin14 April 2014340–27–109Page 79/80 of 96A31155

  
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 80Service Bulletin14 April 2014340–27–109Page 81/82 of 96A31577    &$$! 
 
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## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 82Service Bulletin14 April 2014340–27–109Page 83/84 of 96A31578

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 'New System WHC – Wiring Diagram for A/C 079–459FIG. 23

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 84Service Bulletin14 April 2014340–27–109Page 85/86 of 96AIR DIST. REF8.47 in (215.1 mm)1.97 in(50.0 mm)4.18 in(106.2 mm)0.20 in(5.0 mm)A30699USE ITEM 01AS TEMPLATEVIEW C ONLY APPLICABLEFOR A/C WITH OPTION231–1 PORTABLE OXYGENBOTTLE INSTALLEDElectrical Center 305VU – Installation of Relay ConsoleFIG. 24

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 86Service Bulletin14 April 2014340–27–109Page 87/88 of 96MAKE SURE THERE IS CLEARANCEBETWEEN FLANGE ON RELAY CONSOLEAND STATIC PRESSURE TUBE0.20 in(5.0 mm)8.47 in (215.1 mm)1.97 in(50.0 mm)4.18 in(106.2 mm)06A30700COMP. PRESS. REFAIR DIST. REFElectrical Center 306VU – Installation of Relay ConsoleFIG. 25

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 88Service Bulletin14 April 2014340–27–109Page 89/90 of 96PR1422B–1/2SRM 51–80–00PRE SB340–71–053 AND PRE OPTION 243–2A31363Flight Compartment – Component Location and Wire RoutingFIG. 26 (Sheet 1 of 4)

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 90Service Bulletin14 April 2014340–27–109Page 91/92 of 96A31364Flight Compartment – Component Location and Wire RoutingFIG. 26 (Sheet 2 of 4)

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 92Service Bulletin14 April 2014340–27–109Page 93/94 of 960.790.79 in(20 20 mm)0.16+0 in–0.20 in(4+0 mm)–5 mm)A31365Flight Compartment and Electrical Center – Component Location and Harness RoutingFIG. 26 (Sheet 3 of 4)

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 94Service Bulletin14 April 2014340–27–109Page 95/96 of 96PART OF 1VUA31366Electrical Center – Component Location and Wire RoutingFIG. 26 (Sheet 4 of 4)

## Service Bulletin

Date Month Year

Revison X, Date Month Year 

# 340–XX–XXX

Page 96