Service difficulty report · Skin · Boeing 737900ER

Difficulty date
April 21, 2023
Submitted
April 21, 2023
Operation
Air carrier
Aircraft
N69818
Make and model
Boeing 737900ER
Aircraft serial
42177
Aircraft time
29,611 hours, 10,745 cycles
Part
Skin
Part number
112A4102315
Condition
Corroded
Location
Lh Wing Inspar
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

DURING A D2 CHECK AT AAR-MIA, CORROSION WAS FOUND ON THE UPPER SURFACE OF THE LEFT WING LOWER INSPAR SKIN PANEL NUMBER 2 (P/N: 112A4102-315) AT WSTA 691.5, JUST FORWARD OF THE FRONT SPAR REF AAR N/R 9670144. 2020682-13-4206 AND ECRA 5720-03324. PLACED ON DIP TO PERFORM A NEL NUMBER 2 AT WSTA 691.5 IN ACCORDANCE WITH PART 2 OF THE LATE F PART 1, STEP 2 OF ECRA 5720-03324. N INSPECTION OF THE REPAIR TO THE LEFT WING LOWER INSPAR SKIN PA ST REVISION OF ECRA 5720-03324 ON OR BEFORE OCTOBER 12, 2024, RE AAR-MIA PERFORMED PART 1 INTERIM REPAIR TO THE LEFT WING LOWER I NSPAR SKIN PANEL NUMBER 2 IN ACCORDANCE WITH AAR-MIA ESR-WI NO. OKAY TO CARRY FORWARD WITH AN INTERIM REPAIR ACCOMPLISHED ON THE TOMC-APPROVAL FROM SC1ELBYC COMMENT LEFT WING LOWER INSPAR SKIN PANEL NUMBER 2. ON OR BEFORE OCTOBER 12, 2024, PERFORM AN INSPECTION OF THE REPAIR TO THE LEFT WING LOWER INSPAR SKIN PANEL NUMBER 2 AT WSTA 691.5 IN ACCORDANCE WITH THE LATEST REVISION OF ECRA 5720-03324 PART 2. ARMENTA TOMC REF ASSOCIATED LP 4373238 FOR PLANNING TO CONTACT ENGINEERING. QC RECORDS UPDATE -- DC QC REVIEW T/A : 12OCT24-- DCU391596

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