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R  terminal. 
R  - Dimension from  Not less than 1.40 mm 
R  contact face to the  (0.0551 in.). 
R  retaining ring 
R  groove. 
R  - Cracked or chipped  Not serviceable. 
R  ceramic insulator. 
R  - Thread damage.  Less than 30 percent of 
R  first thread is damaged. 
R  Less than 10 percent of 
R  second thread is 
R  damaged.
 F  『
 EEFF : ALL  E 
E  E
 E  E
 ECES  E

Repair lead (Ref. TASK 74-21-20-300-004).
Repair lead (Ref. TASK 74-21-20-300-004).
Repair lead (Ref. TASK 74-21-20-300-004).
Repair lead (Ref. TASK 74-21-20-300-005).
Chase the threads.
Chase the threads.

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 E C F M E
 E E
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 -------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
R 
R 
R 
R  PRE SB 74-002 
R  - Damage to caged 
R  spring assembly. 
R  - Damaged or missing 
R  white silicone 
R  seal. 
R  NOTE: The white and 
R  blue silicone seals 
R  are not 
R  interchangeable. 
R  POST SB 74-002 
R  - Damage to captive 
R  spring assembly. 
R 
R  - Damage or missing 
R  blue silicone seal. 
R  NOTE : The white and 
R  blue silicone seals 
R  are not 
R  interchangeable. 
R  4. Type 3 and 4 igniter 
R  lead braided conduit 
R  for: 
R  - Chafing along the 
R  entire length of 
R  the ignition lead. 

F  『
 EEFF :  ALL  E 
E  E
 E  E
 ECES  E

Damage is more than the above limits.
Not serviceable. Not serviceable.
Not serviceable.
Not serviceable.
Not serviceable.
Replace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).
Repair the lead (Ref. TASK 74-21-20-300-005).
Repair the lead (Ref. TASK 74-21-20-300-005).
Replace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).
Repair the lead (Ref. TASK 74-21-20-300-005).
Replace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).

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R  NOTE: The left hand 
R  ignition lead can 
R  chafe on the 2 
R  o'clock VSV actuator 
R  bellcrank. This 
R  damage can prevent 
R  cooling air flow to 
R  the igniter plug end 
R  of the ignition lead. 
R  The loss of cooling 
R  air can breakdown the 
R  insulation of the 
R  ignition lead and 
R  decrease the life of 
R  the head and plug. 
R  - Broken strands. 
R 
R 
R 
R 
R 
R 
R 
R 
R 
R 
R 
R 
R 
R 

R - Braze joint R separation. R
R - Sharp bends. R
F EEFF : ALL E E ECES Less than half of the circumference by 25.4 mm (1.0000 in.) in length is permitted.

Less than 25.4 mm (1.0000 in.) in length within any 76.2 mm (3.0000 in.) of lead.
Total damage can not be more than 10 percent of the total length of the lead.
No damage to conduit under the strands.
Not serviceable.

Maximum 152.4 mm (6.0000 in.) bend radius.
『E EEEReplace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).
Replace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).
Replace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).
Replace lead (Ref. TASK 74-21-20-000-002) and (Ref. TASK 74-21-20-400-002).
　
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