Service difficulty report · Door · Boeing 7377H4

Difficulty date
June 21, 2022
Submitted
July 19, 2022
Operation
Air carrier
Aircraft
N258WN
Make and model
Boeing 7377H4
Aircraft serial
32516
Aircraft time
52,954 hours, 31,553 cycles
Part
Door
Condition
Corroded
Location
R1 Door
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

FUSELAGE SERVICE DOOR 145AL INNER UPPER SURFACE CORROSION / [01] REMOVED SERVICE DOOR PANEL 145AL DUE TO CORROSION PER B737-700 AMM 52-49-07-000-801;[02] REMOVED CORROSION ON SERVICE DOOR PANEL 145AL PER B737-700 SRM 51-10-02-0G-0;[03] VERIFIED STEPS 1 AND 2.;[04] PERFORMED UT THICKNESS INSP ON REWORKED AREA IAW B737 NDT P4 51-00-00 PROC.3 ; MIN THK. NOTED 0.045'<BR>TOOL USED : OLYMPUS 27MG B/C 172139 CAL DUE:04/23;[05] ORIGINAL MATERIAL OF DOOR SKIN 0.100'; MAT-REMOVED 0.055'; MAT-REMAINING 0.045' FOUND OUT OF LIMITS REF B737-700 SRM 52-40-01-1A-4; FIGURE 103; DETAIL D;[06] VERIFIED STEP 5. OUT OF LIMITS.;[07] OK TO TREAT AND PRIME NEW DOOR ASSY;[08] TREATED AND PRIMED NEW SERVICE DOOR PANEL 145AL REF B737-700 AMM 51-21-41-370-803 AND AMM 51-21-72-370-804;[09] VERIFIED STEP 8. PANEL TREATED AND PRIMED. OK TO TOP COAT;[10] APPLIED TOP COAT ON NEW SERVICE DOOR PANEL 145AL REF B737-700 AMM 51-21-73-370-804;[11] VERIFIED STEP 10; APPLICATION OF TOP COAT. OK TO INSTALL NEW DOOR ASSY.;[12] INSTALLED NEW SERVICE DOOR PANEL 145AL REF B737-700 AMM 52-49-07-400-801;[13] VERIFIED STEP 12. PANEL 145AL DOOR ASSY INSTALLATION. PENDING STENCIL INSTALLATION;[14] STENCIL WILL BE INSTALLED ON TASK CARD TTG8Q00DHQCC;[15] VERIFIED STEP 14.

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