Service difficulty report · Support · Boeing 7377BD

Difficulty date
April 18, 2022
Submitted
May 10, 2022
Operation
Air carrier
Aircraft
N7736A
Make and model
Boeing 7377BD
Aircraft serial
35109
Aircraft time
50,096 hours, 25,534 cycles
Part
Support
Part number
149A81185
Condition
Corroded
Location
Aft Cargo Bay
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

CORROSION ON AFT CARGO BAY AFT LOWER BULKHEAD SUPPORT AT BS 947 LBL 9-RBL 21. / [01] REMOVED CORROSION FROM AFT LWR BULKHEAD SUPPORT AT BS 947:<BR>LBL9: L=0.500'; W=0.400'; LBL4: L=0.500'; W=0.400'; RBL4: L=0.600'; W=0.400'; RBL9: L=1.000'; W=0.800'; RBL15: L=1.000'; W=0.700'; RBL17: L=0.900'; W=0.400' AND RBL20: L=0.800; W=0.800. MAXIMUM MATERIAL REMOVED: 0.008' IAW SRM 51-10-02-0G; PARR. 15.;[02] LOCATED AND DRILLED NEW BULKHEAD SUPPORT P/N: 149A8118U29; LOT 1489912 IAW SRM 51-40-05 AND DWG 149A8117. <BR><BR>REQUIRE OK TO INSTALL.;[03] CORRECTION ITEM 1; NO FOUND ALLOWABLE DAMAGE FOR THIS PART; MUST BE REPLACED IAW SRM 51-10-02 ITEM 9.;[04] VERIFIED CORRECTIVE ACTION 1-3. NO ALLOWABLE LIMITS FOR REWORK- PART TO BE REPLACED. OK TO INSTALL BS947 CENTER BULKHEAD SUPPORT.;[05] INSTALLED ON AFT CARGO BAY AFT LOWER BULKHEAD SUPPORT BS 947 LBL 9 - RBL21 IAW SRM 51-40-02 AND DWG 149A8117;[06] VERIFIED CORRECTIVE ACTION #5

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