Service difficulty report · None · Boeing 7377H4

Difficulty date
September 7, 2022
Submitted
September 26, 2022
Operation
Air carrier
Aircraft
N262WN
Make and model
Boeing 7377H4
Aircraft serial
32519
Aircraft time
52,840 hours, 31,906 cycles
Part
None
Condition
Corroded
Location
L/H Wing
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

CARD OPENED TO DOCUMENT MEASUREMENTS ON BRACKET CORRODED AT LEFT WING REAR SPAR INB FUEL BOOST PUMP TANK 1 AFT UPPER BONDING STRAP FITTINGS ON CARD # TTG8Q00EG1U0 / [01] REMOVED CORROSION; REMAINING THICKNESS 0.030'. FOUND OUT OF LIMITS AS PER B-737-700 SRM 57-20-10-1A-3.;[02] REMOVED CORROSION IN BRACKET MAT. ORIGINAL .063; MAT LOSS .033; MAT REMAINING .030 FOUND OUT OF LIMITS REF B-737-700 57-20-10-1A-2;[03] VERIFIED OUT OF LIMITS;[04] UPDATED CORROSION LEVEL TO LEVEL 1 IN MEASUREMENT TABLE.;[05] OK TO INSTALL NEW CLIP ASSY AT L/W REAR SPAR FUEL BOOST PUMP # 1 TANK UPPER BONDING STRAP..;[06] INSTALLED NEW CLIP ASSEMBLY BRACKET AT L/W REAR SPAR INBOARD FUEL BOOST PUMP TANK # 1 AFT UPPER BONDING STRAP FITTING AS PER B-737-700 SRM 51-40-02-0G-0.;[07] VERIFIED STEP 6

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