Service difficulty report · Baffle · Boeing 7377H4

Difficulty date
June 11, 2021
Submitted
July 19, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Baffle
Condition
Damaged
Location
Bs 400-420
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

FCB L/H FLOOR TO SIDEWALL BAFFLE HAS OVERSIZED HOLES COMMON TO UPPER HORIZONTAL FLANGE BETWEEN BS400 & BS420 LBL25 WL156 ; / [01] FOUND FCB L/H FLOOR TO SIDEWALL BAFFLE TO BE OUT OF LIMITS; REPLACEMENT OF PART REQUIRED IAW SRM 51-10-02-0G-0. REMOVED FCB L/H FLOOR TO SIDEWALL BAFFLE AT BS 400 - BS 420 LBL 25 WL 156 IAW SRM 51-40-02-0G-0; [02] VERIFIED FCB L/H FLOOR TO SIDEWALL BAFFLE TO BE OUT OF LIMITS<BR>VERIFIED THE REMOVAL OF FCB L/H FLOOR TO SIDEWALL BAFFLE AT BS 400 - BS 420 LBL 25 WL 156; [03] LOCATED; DRILLED; AND DEBURRED NEW LH FLOOR TO SIDEWALL BAFFLE BS 400-420; LBL 25; WL 156 IAW SRM 51-40-05-0G-0; DWG #143A7505. OK TO INSTALL; [04] OK TO INSTALL LH FLOOR TO SIDEWALL BAFFLE BS 400-420; LBL 25; WL 156; [05] INSTALLED NEW LH FLOOR TO SIDEWALL BAFFLE BS 400-420; LBL 25; WL 156 IAW SRM 51-40-02-0G-0; DWG #143A7505.; [06] VERIFIED THE INSTALLATION OF LH FLOOR TO SIDEWALL BAFFLE BS 400-420; LBL 25; WL 156; [07] VERIFIED TASK IS COMPLETE

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