Service difficulty report · Floor Support · Boeing 73779P

Difficulty date
June 23, 2021
Submitted
July 27, 2021
Operation
Air carrier
Aircraft
N7820L
Make and model
Boeing 73779P
Aircraft serial
28253
Aircraft time
52,814 hours, 34,351 cycles
Part
Floor Support
Condition
Cracked
Location
Bs 344-360 Bl0
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

INTERCOSTAL BETWEEN FSTA 344 TO FSTA 360 BL 0 HOLE CRACKED. ; / [01] INSTALLED EWIS PROTECTION REF. B737-7 AMM 20-60-07-913-801; [02] LOCATED AND DRILLED INTERCOSTAL REF. B737-7 SRM<BR>51-40-05-0G-0; [03] TREATED AND PRIMEDHOLES REF. B737-7 SRM 51-20-01-0G-0; [04] VERIFIED LOCATED HOLES; [05] VERIFIED TREAT AND PRIMED HOLES; [06] OK TO INSTALL INTERCOSTAL; [07] REMOVED AND REPLACED INTERCOSTAL STA.344 TO STA.360 BL '0'; REF. B737-7; SRM #51-40-05-OG-O; #51-20-01-OG-0; AND DRAWING 141A5400; [08] INSPECTED INTERCOSTAL INSTALLATION; [09] REMOVED EWIS PROTECTION REF. B737-7 AMM 20-60-07-913-801; [10] VERIFIED EWIS PROTECTION REMOVAL

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