Service difficulty report · Web · Boeing 7377BD

Difficulty date
April 20, 2022
Submitted
May 11, 2022
Operation
Air carrier
Aircraft
N7736A
Make and model
Boeing 7377BD
Aircraft serial
35109
Aircraft time
50,096 hours, 25,534 cycles
Part
Web
Condition
Corroded
Location
Aft Cargo
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 AT BS 1016+1 RBL 1. CORROSION FOUND ON ACB BS 1016+1 RBL 1 BULKHEAD WEB FRONT LOWER SIDE / [01] REMOVED CORROSION ON ACB BULKHEAD WEB BS 1016+1'' RBL1-6 IAW SRM 51-10-02-0G-0; MEASURES L=6.2'' X W=2'' TOOL USED CALIPER ID:ATS2381 S/N:B19006095 DUE:05/22.;[02] VERIFIED CORRECTIVE ACTION #1.;[03] UT THICKNESS TESTED BLENDED AREA PER 737NDT PART 4 51-00-00 PROCEDURE 2. LOWEST REMAINING THICKNESS IS .032'. TOOL E650 ATS2031 CAL DUE 03/2023.;[04] UT THICKNESS TESTED BLENDED AREA PER 737NDT PART 4 51-00-00 PROCEDURE 2 AND FILLED OUT GRID MAP FOR ENGINEERING. LOWEST REMAINING THICKNESS IS .032' TOOL E650 ATS2031 CAL DUE 03/2023.;[05] SUBMITTED TO ENGINEERING FOR DISPOSITION INSTRUCTION.;[06] ?REFER TO FAULT TTG8Q00BYU28 WHERE EA 22-153-01269 WAS ADDED AS A SUBTASK? <BR>'FAULT RESOLVED ON OTHER FAULT' REPAIR REFERENCE IS SELECTED.;[07] UPDATED MEASUREMENTS;[08] AS PER STEP 1 OF 22-153-01269-WIP1 (TASK TTG8Q00C5TGR); REFER TO FAULT TTG8Q00BYU28 WHERE EA 22-153-01269 WAS ADDED AS A SUBTASK.;[09] AS PER STEP 1 OF 22-153-01269-WIP1 (TASK TTG8Q00C5TGR); REFER TO FAULT TTG8Q00BYU28 WHERE EA 22-153-01269 WAS ADDED AS A SUBTASK.;[10] VERIFIED CORRECTIVE ACTIONS 6; 7 AND 9;[11] VERIFIED CARD COMPLETED

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