Service difficulty report · Barrier · Boeing 7377H4

Difficulty date
February 14, 2023
Submitted
March 1, 2023
Operation
Air carrier
Aircraft
N231WN
Make and model
Boeing 7377H4
Aircraft serial
32499
Aircraft time
57,095 hours, 34,112 cycles
Part
Barrier
Condition
Cracked
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

R/H VAPOR BARRIER HAVE A CRACK AT RBL45 WL165<[01] EVALUATED R/H VAPOR BARRIER AND FOUND A 3' CRACK AT RBL 45. FOUND TO BE REPAIRABLE. IAW B737-700 SRM 57-10-10-2R-2 PAR 1A& NOTE. CLEAN AND PREP FOR REPAIR. IAW B737-700 SRM 51-70-04-2R-10 PAR 4A-C. VERIFY MATERIALS AS: BMS 9-3 (A162523); BMS 8-301 (A148401). IAW B737-700 SRM 51-70-04-2R-0 TABLE 203. NEED OK TO BOND.;[02] VERIFIED STEP 1 AND OK TO BOND;[03] BONDED REPAIR. IAW B737-700 SRM 51-70-04-10 PAR 4 D-G;[04] REPAIRED CRACK ON R/H VAPOR BARRIER. IAW B737-700 SRM 57-10-10-2R-2; SRM 51-70-04-2R-10; SRM 51-70-04-2R-0.;[05] VERIFIED STEPS 3-4

More about the Boeing 737-7H4