Service difficulty report · Strap · Boeing 7377H4

Difficulty date
October 4, 2022
Submitted
November 2, 2022
Operation
Air carrier
Aircraft
N210WN
Make and model
Boeing 7377H4
Aircraft serial
34162
Aircraft time
59,036 hours, 35,216 cycles
Part
Strap
Part number
147A56203
Condition
Corroded
Location
Zn 900 Lav/Galle
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 SPOTS 0N AFT WET AREA FLOOR WEB AND STRAP B.S. 1016 TO AFT PRESSURE BLKHD. CENTER BL. TO LBL. 20' W.L. 208.(51-007) / [01] REMOVED LIGHT SURFACE CORROSION SPOTS ON AFT WET AREA FLOOR WEB AND STRAP B.S 1016 TO AFT PRESSURE BLKHD;[02] VERIFIED STEP #1.;[03] CORRECTION TO STEP 1 SHOULD READ: REMOVED LIGHT SURFACE CORROSION FROM AFT WET AREA FLOOR STRAP AS PER B737-700 SRM 51-10-02-0G-0;[04] VERIFIED STEP #3 (CORRECTION);[05] CORRECTION TO STEP 1 SHOULD READ: CLEANED WET AREAS FROM FLOOR WEB AT STA 1016 LBL 0 TO' LBL 25' AS PER BOEING SOPM 20-30-03. AFTER FURTHER EVALUETION NO CORROSION FOUND ON FLOOR WEB;STRAP WILL BE REPLACE ON N/R TTG8Q00F6RQ9.;[06] VERIFIED STEP #5. OK TO TREAT AND PRIMER AT WET AREAS FROM FLOOR WEB AT STA 1016 LBL 0 TO' LBL 25'.;[07] TREATED AND PRIMED FLOOR WEB AT STA 1016 FROM CENTER BL TO LBL25'<BR>AS PER B737-700 AMM 51-2141-370-801 51-21-72-370-802AND AMM;[08] LATE ENTRY: REMOVED STRAP OUT OF LIMITS;[09] CORRECTION TO STEP 8 SHOULD READ: REMOVED STRAP OUT OF LIMITS AS PER B737-700 SRM 51-40-02-0G-0;[10] VERIFIED STEPS #7; #8 AND #9. (TRAP WILL BE REPLACE ON N/R TTG8Q00F6RQ9.)

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