Service difficulty report · Sill Drain · Boeing 7377H4

Difficulty date
January 5, 2023
Submitted
February 7, 2023
Operation
Air carrier
Aircraft
N209WN
Make and model
Boeing 7377H4
Aircraft serial
32484
Aircraft time
59,684 hours, 35,490 cycles
Part
Sill Drain
Part number
NOTREPORTED
Part serial
NOTREPORTED
Condition
Cracked
Location
Zn 900 Lav/Galle
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

CRACKED FWD ENTRY DOOR MOP SILL BS294+8 LBL55 WL208.<[01] EVALUATED CRACK AT FWD ENTRY DOOR MOP SILL BS294+8'' LBL55 AND FOUND TO BE OUT OF LIMITS IAW SRM 53-10-15-1A-1 PART 4.C DETAIL G; L=0.5''; TOOL USED CALIPER ID: ATS2739 S/N: A22004232 DUE DATE:11/2023; PART REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9.A;[02] VERIFIED CORRECTIVE ACTION #1; OUT OF LIMITS;[03] REMOVED FWD ENTRY DOOR MOP SILL AT BS 270 TO BS 360 IAW SRM 51-40-02-0G-0;[04] RECIVED; LOCATED AND DRILLED NEW MOP SILL AT BS 294 TO BS 360 LBL 55 WL 208.1 ; IAW 737-700 SRM 51-40-05-0G-0 DWG 141A8110.;[05] VERIFIED CORRECTIVE ACTION STEP 4.;[06] VERIFIED OK TO INSTALL.;[07] INSTALLED NEW FWD ENTRY DOOR MOP SILL AT BS 270 TO BS 360 IAW SRM 51-40-02-0G-0 AND DWG 141A8110 CARD IS COMPLETED;[08] VERIFIED CORRECTIVE ACTION #7.<BR>VERIFIED MEASUREMENTS.

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