# SDR SWAA2021091312206

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2021
- Submitted: September 13, 2021
- Operation: Air carrier
- Aircraft: [N966WN](https://openairdocs.org/aircraft/N966WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36966
- Aircraft time: 32,714 hours, 19,999 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: 146A750227
- Condition: Corroded
- Location: Aft Cargo Bay
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021091312206

## Discrepancy

ACB FLOOR TO SIDEWALL SUPPORT CORROSION. BS727D; LBL22; WL151 ; / [01] REMOVED CORROSION FROM FLOOR TO SIDEWALL SUPPORT BS 727D LBL 22 ACB IN AREA OF L=.5' X W=.5' D=.006' REMAINING THICKNESS =.034' FROM ORIGINAL THICKNESS .040' FOUND TO BE OUT OF LIMITS IAW SRM 5110-02-0G-0; SRM 53-00-53-1A-2; SRM 53-60-53-0I-2<BR><BR>TOOL USED:<BR>ATS1671<BR>CAL DUE 01/2022<BR><BR>CARD TO BE COMPLETED ON:<BR>TTG8Q006A199; [02] REMOVED CORROSION FROM FLOOR TO SIDEWALL SUPPORT BS 727D LBL 22 ACB IN AREA OF L=.5' X W=.5' D=.006' REMAINING THICKNESS =.034' FROM ORIGINAL THICKNESS .040' FOUND TO BE OUT OF LIMITS IAW SRM 5110-02-0G-0; SRM 53-00-53-1A-2; SRM 53-60-53-0I-2<BR><BR>TOOL USED:<BR>ATS1671<BR>CAL DUE 01/2022<BR><BR>PART TO BE REPAIRED ON CARD #:<BR>TTG8Q006A199; [03] VERIFIED REMOVED CORROSION FROM FLOOR TO SIDEWALL SUPPORT BS 727D LBL 22 ACB IN AREA OF L=.5' X W=.5' D=.006' REMAINING THICKNESS =.034' FROM ORIGINAL THICKNESS .040' FOUND TO BE OUT OF LIMITS IAW SRM 51-10-02-0G-0; SRM 53-00-53-1A-2; SRM 53-60-53-0I-2 <BR><BR>TOOL USED: <BR>ATS1671 <BR>CAL DUE 01/2022 <BR><BR>PART TO BE REPAIRED ON CARD #: <BR>TTG8Q006A199

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