Service difficulty report · Support · Boeing 7377H4

Difficulty date
May 21, 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

AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT R/H BS867+18 RBL 21 WL164 HAS CORROSION ; / [01] VERIFIED APPLICABILITY OF SRM 53-60-53-0I-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE.; [02] REMOVED CORROSION FROM ACB FLOOR TO SIDEWALL SUPPORT R/H BS867-BS887 RBL21 WL 164; MAXIMUM BLENDED AREA 3'X1'X0.020' DEEP; FOUND TO BE OUT OF LIMITS IAW SRM 51-10-02-OG-0 AND SRM 53-00-53-1A-2 PAR.4.A.(2) FIG. 103 DETAIL D. <BR>TOLL USED DIAL DEPTH GAUGE; ID: ATS401; S/N:UNKNOWN; [03] CORROSION DAMAGE OUT OF LIMITS PER SRM 53-00-53-1A-2; [04] REMOVED ACB FLOOR TO SIDEWALL SUPPORT R/H BS 867- BS887 RBL21 WL 164 IAW SRM 51-40-02-OG-0; [05] LOCATED AND DRILLED NEW FLOOR TO SIDEWALL P/N 147A7501-17 AT BS 867=18 RBL 21 WL 164; IAW B 737-700 SRM 51-40-05-OG-0 DWG 147A7501;

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