Service difficulty report · Support · Boeing 7377H4

Difficulty date
May 24, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
52,378 hours, 31,227 cycles
Part
Support
Condition
Corroded
Location
Zone 100
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

***CORROSION*** ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500A+6 RBL22 WL157. ; / [01] VERIFIED APPLICABILITY ON SRM53-00-53-OI-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE; [02] REMOVED CORROSION FROM FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500A+6 RBL22 WL157; P/N143A7501-198;IN AREA 1'X.6''X0.018''DEEP; IAW SRM 51-10-02-OG-0; ORIGINAL THICKNESS 0.040''; FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2; PAR. 4.A.(2); FIG.103; DETAIL A.<BR>TOOL USED: CALIPER P/N 505-675(IS000887)S/N:05946723; DEPTH GAGE; ID:ATS2473; [03] REMOVED FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS 500A TO BS500D RBL 22; WL157;IAW SRM 51-40-02-OG-0; [04] VERIFIED CORROSION REMOVAL ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500A+6 RBL22 WL157; P/N143A7501-198;IN AREA 1'X.6''X0.018''DEEP; IAW SRM 51-10-02-OG-0; ORIGINAL THICKNESS 0.040''; FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2; PAR. 4.A.(2); FIG.103; DETAIL A. <BR>TOOL USED: CALIPER P/N 505-675(IS000887)S/N:05946723; DEPTH GAGE; ID:ATS2473; [05] FCB FLOOR TO SIDE WALL SUPPORT ANGLE ACCOMPLISH ON TASK CARD #TTG8Q0055VUP; [06] CORRECTION TO STEP 5: FCB FLOOR TO SIDE SUPPORT ANGLE WILL BE REMOVED AND REPLACED ON TASK CARD #TTG8Q0055VUP; [07] VERIFIED FCB FLOOR TO SIDE SUPPORT ANGLE WILL BE REMOVED AND REPLACED ON TASK CARD #TTG8Q0055VUP

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