Service difficulty report · Bulkhead · Boeing 737724

Difficulty date
May 17, 2023
Submitted
May 19, 2023
Operation
Air carrier
Aircraft
N16701
Make and model
Boeing 737724
Aircraft serial
28762
Aircraft time
77,924 hours, 27,822 cycles
Part
Bulkhead
Part number
111A1308
Condition
Cracked
Location
Rbl40-Rbl 45.64
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

CRACK FOUND AND MARKED AT CENTER OF VERTICAL PRESSURE WEB BETWEEN RBL 40 TO RBL 45.64 AND BETWEEN WL 192.0 AND WL 200.6 CRACK LENGTH 0.406IN. (REF AAR NR 9671998) ACCOMPLISHED BY V937571. ACCOMPLISHED REPAIR AT R/H SIDE VERTICAL WEB STA 663, RBL 40 TO RBL 45.64 ALTERNATIVE 2 IAW B737-700 SRM 57-10-10-2R-3. ACCOMPLISHED REPETITIVE INSPECTION AS PER TABLE 205 AT 56000FC, INSPECTION METHOD HFEC WITH 36000FC INTERVALS AND 36000LFEC. ADD EMP:V937571 INSP C/W REPETITIVE INSPECTION AS PER TABLE 205 AT 56,000 FC, INSPECTION REPAIR. METHOD HFEC WITH 36,000 FC INTERVALS AND 36,000 LFEC. CATEGORY B ACCOMPLISHED REPAIR AT R/H SIDE VERTICAL WEB STA 663, RBL 40 TO RBL 45.64 ALTERNATE 2 IAW B737-700 SRM 57-10-10-2R-3. ACCOMPLISH TOMC APPROVED TO DIP CRACK CENTER OF VERTICAL PRESSURE WEB TOMC-APPROVAL FROM SC1ELBYC COMMENT BETWEEN RBL 40 TO RBL 45.64 AND BETWEEN WL 192.0 AND WL 200.6 CRACK LENGTH 0.406IN REPAIRED IAW SRM 57-10-10-2R-3 ALTERNATIVE 2. INITIAL INSPECTION REQUIRED AT 56,000 FLT CYC AFTER REPAIR AND REPEAT INSPECTION AT 36,000 AFTER INITIAL INSPECTION. RECORDS UPDATE INIT: 56,000 FC WILL ITO TO RIR (-0074) RIR: EVERY 36,000 FC THEREAFTER....AZ/U370830