Service difficulty report · Strap · Boeing 737*

Difficulty date
January 22, 2022
Submitted
February 21, 2022
Operation
Air carrier
Aircraft
N7840A
Make and model
Boeing 737*
Aircraft serial
30236
Aircraft time
60,283 hours, 37,501 cycles
Part
Strap
Condition
Corroded
Location
L/H Wing
Stage of operation
UK
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

LEFT WING FWD BOOST PUMB HOUSING CORRODED AT UPPPER BONDING STRAP / [01] OPENED AND COLLARED THE NO. 1 FWD BOOST PUMP CIRCUIT BREAKER PER AMM 28-22-41-000-801 STEP 2H(4(B)) AND GAINED ACCESS TO CORROSION PER AMM 28-22-41-000-801 STEPS 4H(5; 8(UPPER STRAP ONLY);[26] REPAIRED LEFT WING CORROSION AT LEFT WING FWD BOOST PUMP HOUSING UPPER BONDING STRAP IAW SWA EA NO. 22-157-00304 REV A;