Service difficulty report · Rail · Boeing 7377H4

Difficulty date
March 31, 2022
Submitted
May 2, 2022
Operation
Air carrier
Aircraft
N475WN
Make and model
Boeing 7377H4
Aircraft serial
32474
Aircraft time
59,744 hours, 35,276 cycles
Part
Rail
Condition
Corroded
Location
Aft Cargo Bay
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 RAIL AT RBL 13 BS 727D+5; BS 787+16. / [01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2 FOR IDENTIFICATION IAW SRM 53-60-53-01-2 IDENTIFICATION 2;[02] WORK ACCOMPLISHED ON CUST SYSTEM ID: TTG8Q00BLW42 FOR CORROSION AT B/S 727D RBL 13 ; CARGO TRACK MUST BE REPLACED IAW SRM 51-10-02 PARAGRAPH 9;[03] REMOVED CORROSION ON CARGO TRACK LOCATED AT B/S 787 +16 RBL 13 ; DIMENSIONS L:3 W: 1' DEEPTH: 0.035' IAW SRM 51-10-02 PARAGRAPH 15 . <BR>EVALUATED REWORKED AREA ; REMAINING THICKNNES : 0.035'AND FOUND OUT ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2 FIGURE 103 DETAIL D<BR>TOOL USED MICROMETER ; ID:ATS601; DATE DUE 05/2022;[04] REMOVED CARGO TRACK LOCATED BTW B/S 767+11 TO B/S 887 RBL13 IAW SRM 51-40-02;[05] WORK ACCOMPLISHED ON CUST SYSTEM ID: TTG8Q00BLW42;[06] VERIFIED WORK WILL BE ACCOMPLISHED ON CARD TTG8Q00BLW42;[07] VERIFIED ITEMS 1 - 3 CORRECTIVE ACTIONS.;[08] FIXED MEASUREMENT TABLE

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