# SDR SWAA2022061607786

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2022
- Submitted: June 16, 2022
- Operation: Air carrier
- Aircraft: [N7876A](https://openairdocs.org/aircraft/N7876A), registered now
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 29355
- Aircraft time: 50,771 hours, 27,451 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2022061607786

## Discrepancy

CORROSION ON FLOOR SUPPORT AT FWD PASSENGER CABIN BS294+7 LBL12 WL208. / [01] VERIFIED APPLICABILITY AS PER SRM 53-10-51-1A-1. CORROSION ON FLOOR SUPPORT / INTERCOSTAL WAS FOUND OUT OF LIMIT DUE NO DAMAGE IS PERMITTED ON UPPER CHORD INTERCOSTAL HARD MOUNT/ATTACHMENT; IAW SRM 53-10-51-1A-1; STEP 1.B(4);[02] REMOVED FLOOR SUPPORT INTERCOSTAL BETWEEN BS 294 TO BS 312 LBL 11.16 PER SRM 51-40-02;[03] LOCATED AND DRILLED NEW INTERCOSTAL P/N 141A5690U1 AT FLOOR SUPPORT STRUCTURE FWD PASSENGER CABIN BS 294 TO BS 312 LBL 11.16 PER SRM 51-40-02 AND DWG 141A5600.<BR>OK TO INSTALL ALL PARTS;[04] VERIFIED CORRECTIVE ACTION STEP 4. VERIFIED OK TO INSTALL ALL PARTS.;[05] UPDATED STEPS 1 ; 2 AND 3;[06] INSTALLED NEW INTERCOSTAL P/N 141A5690U1 AT FWD PASSENGER CABIN BS 294 TO BS 312 LBL 11.16 WL208. PER SRM 51-40-02 AND DWG 141A5600;[07] UPDATED PARTS USAGE;[08] VERIFIED CORRECTIVE ACTION #6.;[09] VERIFIED MEASUREMENT FIELD.

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