Page 70 - CRS E-booklet 2022

8.2 ANALYSIS OF DEFECTS DETECTED DURING USFD TESTING OF RAILS/WELDS BETWEEN BPQ-KZJ
UP AND DN LINES:

UP/ Frequency IMR/ OBS OBS Defective Defective
Testing Description Section GMT Action taken Remarks
DN of testing IMR(W) (R) (W) (DFWO) (DFWR)

Along with NBC/
once in 3 All are Joggled fish GFC/NGFC Rail
BPQ-BPA UP 38.35 2 67 3
months plated testing the
following tests
such as Winter
once in 3 All are Joggled fish precaution
BPQ-BPA DN 37.04 5 49 6 testing, Test free
months plated
NBC/GFC/NGFC rail
testing,Switches
Rail testing and Intensive rail
UP once in 3 All are Joggled fish
BPA-KZJ 37.76 2 101 4 testings are
/UD months plated carried in the
Division.
All IMR/IMRW
once in 2 All are Joggled fish were replaced
BPA-KZJ DN 49.69 1 61 7
months plated within 3 days of
their detection.
Flaw detected in
1) Service weld BPQ-BPA UP 38.35 once in 3 34 All are fish plated with
testing(Including yrs two far end tight bolts
welds on high
banks,cuttings BPQ-BPA DN 37.04 once in 3 48 All are fish plated with DFWR will be
replaced within
and curves) yrs two far end tight bolts 3 months after it
2)New weld is detected.
testing UP once in 3 All are fish plated with DFWR is
3) Fracture prone BPA-KZJ /UD 37.76 yrs 60 1 two far end tight bolts replaced.
locations
4) All major once in 2 All are fish plated with
bridges and BPA-KZJ DN 49.69 yrs 83 two far end tight bolts
approaches. 68

Total 10 278 20 225 1