OpenAirDocs.org

SDR SWAA2022032578530

Open the Markdown

Service difficulty report · Web · Boeing 737*

FAA SDR system

Difficulty date
February 27, 2022
Submitted
March 25, 2022
Operation
Air carrier
Aircraft
N7728D
Make and model
Boeing 737*
Aircraft serial
33925
Aircraft time
51,265 hours, 26,478 cycles
System (JASC)
5310 · Fuselage Main, Structure
Part
Web
Condition
Corroded
Location
Aft Cargo
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. ** AFT CARGO COMPARTMENT DOOR. CUTOUT LOWER SILL WEB @ OUTER CHORD BETWEEN STA 807 AND. 827 MKD DOTS / [01] REMOVED CORROSION AT AFT CARGO DOOR CUTOUT WEB BETWEEN STA 807 TO STA 827 AS PER B737-700 SRM 51-10-02-0G-0;[02] VERIFIED STEP 1;[03] PERFORMED UT THICKNESS INSP. ON REWORKED AREAS IAW B737 NDT PART 4; 51-00-00; PROCEDURE 3. MIN. THICKNESS 0.046'<BR>TOOL: OLYMPUS 27MG B/C: 172139 DUE: 04/01/2022;[04] EVALUATED REWORKED AREA ORG MAT 0.050 MAT REMOVED 0.004 MAT REMAINING 0.046 IAW B 737-7 SRM=53-60-15-1A-1;[05] VERIFIED STEP 4 O.K. TO TREAT AND PRIME;[06] TREATED AND PRIMED REWORKED AREA IAW B 737-AMM=51-21-21-21-100-002 AND51-21-72-370-803;[07] SUMMARY=REMOVED CORROSION AT AFT CARGO DOOR CUTOUT WEB BETWEEN STA 807 TO STA 827 AS PER B737-700 SRM 51-10-02-0G-0 EVALUATED REWORKED AREA ORG MAT 0.050 MAT REMOVED 0.004 MAT REMAINING 0.046 IAW B 737-7 SRM=53-60-15-1A-1 TREATED AND PRIMED REWORKED AREA IAW B 737-AMM=51-21-21-21-100-002 AND51-21-72-370-803;[08] VERIFIED STEPS 6 AND 7.