Service difficulty report · Pressure Web · Boeing 737900

Difficulty date
May 14, 2022
Submitted
May 16, 2022
Operation
Air carrier
Aircraft
N37408
Make and model
Boeing 737900
Aircraft serial
30125
Aircraft time
56,315 hours, 23,179 cycles
Part
Pressure Web
Part number
111A21014
Condition
Cracked
Location
Ctr Wing
Stage of operation
IN
How discovered
O
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

CTR WING VERTICAL PRESSURE WEB CRACKED ON L/H SIDE @ APPROX. LBL INSPECTION THRESHOLD 56,000 FLT CYCLES. REPAIRED CENTER WING VERTICAL PRESSURE WEB PER SRM 57-10-10.DEFE RED TO PEFORM AN INSP PER SAME SRM STEP6 SUB STEP B.56,000 FLT C VERTICAL PRESSURE DECK REPAIR FROM LBL 24.92 TO LBL 45.64. REPAI R SIZE IS 22"X"8. FABRICATED PER TABLE 202. REFERENCE TABLE 205 FOR INSPECTION REPAIR. PERFORM A LFEC AND HFEC REPEAT INSPECTION AT 36,000 REQUIREMENTS. INSPECTION THRESHOLD OF 56,000 FLIGHT CYCLES AFTER FLIGHT CYCLES PER TABLE 205. PERFORMED WING CENTER SECTION REAR SPAR VERTICAL PRESSURE DECK WEB REPAIR PER SRM 57-10-10-2R-3, REPAIR 3, ALTERNATIVE 2. PARTS DIP 57-DIP NEEDS MANUAL REF AND WHICH REPAIR REPAIRED VERTICAL PRESSURE DECK PER SRM 57-10-10-2R REPAIR 3 ALT ERNATIVE 2. REPAIR PARTS FABRICATED PER TABLE 202. REFERENCE TAB LE 205 FOR CATEGORY B REPAIR INSPECTION REQUIREMENTS. LOG PAGE NOT REQUIRE RII INSPECTION