Service difficulty report · Gusset · Boeing 7377BD

Difficulty date
June 4, 2021
Submitted
July 2, 2021
Operation
Air carrier
Aircraft
N7721E
Make and model
Boeing 7377BD
Aircraft serial
34479
Aircraft time
50,877 hours, 26,372 cycles
Part
Gusset
Condition
Cracked
Location
Bs 500d
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

FWD PIT STA 500D; STR 19L; GUSSET SUPPORRT BRACKET CRACKED IN RADIUS; DOT 19. ; / [01] REMOVED CRACKED GUSSET IAW SRM 51-40-02-0G-0; [02] VERIFIED NEW PART; GUSSET; P/N 143A9481-6; IAW BOEING DWG 143A7902 REV-<BR>ATAG A54122; [03] LOCATED AND DRILLED NEW GUSSET IAW SRM 51-40-05-0G-0 AND BOEING DWG 143A7902 REV-; [04] VERIFIED ITEMS 1; 2 AND 3; [05] C/W ITEMS 1; 2; 3; AND 4 RII; [06] RII; OK GIVEN TO INSTALL STR 19L GUSSET SUPPORT BRACKET; [07] INSTALLED GUSSET IAW SRM 51-40-02-0G-0 & DWG 143A7902 SHT 174 REV-; [08] VERIFIED STEP 7 COMPLETED; [09] OK GIVEN TO CIC INSTALLED GUSSET; [10] APPLIED CIC TO NEW GUSSET IAW AMM 51-21-91-620-802; [11] REMOVED AND REPLACED GUSSET FWD PIT STA 500D STR 19L IAW SRM 51-40-02-0G-0 & DWG 143A7902 SHT 174 REV -; [12] VERIFIED STEP 10 CIC APPLIED C/W; [13] RII VERIFIED STEP 11 INSTALLATION OF GUSSET C/W; FINAL AUDIT C/W

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