Service difficulty report · Support · Boeing 7377H4

Difficulty date
September 30, 2022
Submitted
November 9, 2022
Operation
Air carrier
Aircraft
N201LV
Make and model
Boeing 7377H4
Aircraft serial
29854
Aircraft time
59,586 hours, 35,374 cycles
Part
Support
Condition
Corroded
Location
Zn 100 Fus Lower
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 AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727A+6; BS 727A+10; BS 727A+14; BS 727B+5; BS 727B+10; BS 727B+11; BS 727B+14; BS 727C+6; BS 727C+10; BS 727C+12. / [01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE 53-00-53-1A-2<BR>AND IDENTIFICATION 53-60-53-01-2 <BR><BR>REMOVED CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727A+6 IAW IAW SRM 51-10-02 PARAGRAPH 15 ;EVALUATED REWORKED AREA AS FOLLOW: DIMENSIONS L=1.0' W= 0.900' DEPTH:0.014' <BR>ORIGINAL MATERIAL THICKNESS 0.040' PER BAC1496-377 REMAINING THICKNESS:0.026' AND FOUND TO BE OUT LIMITS; ALLOWABLE DAMAGE IAW SRM 53-00-53-1A-2<BR>TOOL USED DEPTH GAUGE <BR>ID= ATS 2472 S/N UNKWOWN DUE= 12/2022;[02] UPDATED MEASUREMENTS;[03] CORRECTION ACTION 1:<BR>VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE SRM 53-00-53-1A-2<BR>AND IDENTIFICATION SRM 53-60-53-01-2;[04] INSPECTED ACTION 1-3; PARTIAL STEPS 1-10. VERIFIED MEASUREMENT TABLE;[05] THIS FAULT WILL BE ACCOMPLISHED ON CARD TTG8Q00F4LAQ;[06] UPDATED INFORMATION REQUIRED MATERIAL<BR>CANTIDAD=1 N/P + 146A7502-51;[07] UPDATED MEASUREMENT TABLE ITEM 14;[08] ALL STEPS COMPLETED;[09] VERIFIED CORRECTIVE ACTION 8

More about the Boeing 737-7H4