Service difficulty report · Web · Boeing 7377H4

Difficulty date
August 29, 2021
Submitted
September 21, 2021
Operation
Air carrier
Aircraft
N758SW
Make and model
Boeing 7377H4
Aircraft serial
27873
Aircraft time
74,045 hours, 43,671 cycles
Part
Web
Condition
Cracked
Location
Fuselage
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

CRACK WEB - INTERCOSTAL LOCATED BETWEEN BS500 TO BS500A AT LEVEL STR26L FWD CARGO COMPARTMENT ; 2021-384489 / [01] REMOVED WEB INTERCOSTAL LOCATED BETWEEN BS500 TO BS500A AT LEVEL STR 26L FWD CARGO COMPARTMENT IAW SRM 51-40-02 DUE TO NOT FOUND ALLOWABLE DAMAGE ON SRM; WEB INTERCOSTAL MUST BE REPLACED AND PERFORMED VISUAL INSPECTION ON AREA AND NOT FOUND DAMAGE.; [02] STEP 1 COMPLETED; [03] MADE WEB-INTERCOSTAL LOCATED BETWEEN BS500 TO BS500A AT LEVEL STR26L FWD CARGO COMPARTMENT IAW DWG 143A7510 REV. C. DRILLED NEW HOLES ON WEB INTERCOSTAL IAW B737-700 SRM 51-40-05 TOLL USED CALIPER P/N 500-752-20 S/N B16101278 DUE DATE 14-SEP-21; [04] STEP 3 COMPLETE; [05] APPLIED PROTECTIVE TREATMENT ON WEB INTERCOSTAL IAW B737-700 SRM 51-20-01; [06] STEP 5 COMPLETED; [07] OBTAINED OK TO INSTALL NEW WEB - INTERCOSTAL LOCATED BETWEEN BS500 TO BS500A AT LEVEL STR26L FWD CARGO COMPARTMENT; [08] OK TO INSTALL GRANTED <BR>STEP 7 COMPLETE.. RII ITEM; [09] INSTALLED NEW WEB-INTERCOSTAL LOCATED BETWEEN BS500 TO BS500A AT LEVEL STR26L FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 DWG #143A7505 REV. D MEASURES OF CRACK 0.392 TOOL ISED CALIPER P/N 700-113-10 S/N 0023208 DUE DATE 31-DEC-21 MATERIAL USED 7075T6B0.020 ALUMINIUM SHEET; [10] REPLACED WEB-INTERCOSTAL LOCATED BETWEEN BS500 TO BS500A AT LEVEL STR26L FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 DWG #143A7505 REV. D; [11] STEP 9 COMPLETED <BR>RII; [12] TASK CARD COMPLETED <BR>RII

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