Service difficulty report · Angle · Boeing 7377CT

Difficulty date
January 28, 2023
Submitted
March 8, 2023
Operation
Air carrier
Aircraft
N567WN
Make and model
Boeing 7377CT
Aircraft serial
32747
Aircraft time
67,166 hours, 34,728 cycles
Part
Angle
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

RT BS 663 VAPOR BARRIER UPPER SUPPORT ANGLE CRACKED.<[01] BEGAN REMOVED FASTENERS AT RT VAPOR BARRIER UPPER SUPPORT ANGLE BS 663 IN AS PER SRM 51-40-02-0G-0;18] COMPLETED INSTALLATION OF NEW REPAIR PARTS OF RT UPPER SUPPORT WING CENTER SECTION VAPOR BARRIER FROM RBL 5.00 TO RBL 65.00 IN AS PER SRM 51-40-02-0G-0 AND 57-10-10-2R-5 FIG 202 SHEET 3;[19] REINSTALLED SUPPORT STRAP; REMOVED ON STEP 2 FROM RBL 45.00 TO RBL 65.00 IN AS PER SRM 51-40-02-0G-0 AND 57-10-10-2R-5;[20] COMPLETED PERMANENT REPAIR VAPOR BARRIER UPPER SUPPORT ANGLES AT RT STA 663.75 AS PER B737-700 SRM 57-10-10-2R-5 FIG 202 SHEET 3.;[21] (RII) VERIFIED STEPS #16; #17; #18; #19. SQUEEZE OUT TIME AND 100% FASTENER INSTALLATION AND STRAP REINSTALLATION.;[22] (RII) FINAL INSPECTION; VAPOR BARRIER UPPER SUPPORT ANGLE REPAIRED ACCOMPLISHED. WORK PERFORMED.

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