Service difficulty report · Sidewall Support · Boeing 737752

Difficulty date
August 16, 2023
Submitted
September 6, 2023
Operation
Air carrier
Aircraft
N7886A
Make and model
Boeing 737752
Aircraft serial
35122
Aircraft time
52,212 hours, 27,316 cycles
Part
Sidewall Support
Part number
UNKNOWN
Condition
Corroded
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

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT ACB BS927+6 RBL21 WL177.<[01] UPDATED STEP 1 AND 2;[02] UPDATED STEP 3;[03] UPDATED STEP 4;[04] VERIFIED STEP 4 IN PARTIAL.;[05] UPDATED STEP 3;[06] VERIFIED STEP 3 IN PARTIAL.;[07] UPDATED STEP 5<BR><BR>THERE IS NO SRM ALLOWABLE DAMAGE FOR ACB INTERCOSTAL AT ACB BS927+6 RBL21 WL177. PART TO BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0<BR><BR>REMOVED INTERCOSTAL IAW SRM 51-40-02-0G-0<BR><BR>LOCATED AND DRILLED NEW INTERCOSTAL IAW SRM 51-40-05-0G-0 AND DWG 147A7500 ID:0028 REV:-<BR><BR>INSTALLED NEW INTERCOSTAL IAW SRM 51-40-02-0G-0 AND DWG 147A7500 ID:0028 REV:-<BR><BR>APPLIED BMS10-11 TYPE2 ENAMEL (WHITE PAINT) IAW SOPM 20-41-02;[08] VERIFIED CORRECTIVE ACTION #7;[09] UPDATED MEASUREMENTS FIELDS;[10] INSTILLATION OF THIS PRIMARY STRUCTURE IS RII AND MUST BE REVERIFIED.;[11] VERIFIED CORRECTIVE ACTIONS STEP 7.