# SDR SWAA2022040621424

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2019
- Submitted: April 6, 2022
- Operation: Air carrier
- Aircraft: N7864B
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 30638
- Aircraft time: 53,114 hours, 35,662 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Flange
- 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/SWAA2022040621424

## Discrepancy

PASSENGER CABIN BS 716; BETWEEN STR 15R TO 17R; STUB FRAME HAS CORROSION ALONG EDGE OF INNER FLANGE.   REMOVED CORROSION ALONG EDGE OF INNER FLANGE.   EVALUATED MATERIAL LOSS (FWD EDGE) TO BE .057; & (AFT EDGE) LOSS TO BE .057. MAX ALLOWABLE IS .100. SUBFRAME IS 'WITHIN LIMITS' PER EA 192572 REV P1. NDT VERIFIED WITH HFEC 'NO CRACKS NOTED.' TREATED; PRIMED; CIC; & APPLIED INDELIBLE INK & CLEAR EPOXY TOPCOAT. FLAP PEEN AREA. ALL ACTIONS ARE IAW  SRM'S 51-10-02-0G-0; 51-20-06-0G-0; 53-40-14-01-1; 53-40-07-1A-1; AMM 20-60-07-913-801; SOPM 20-10-03; 20-43-03; 20-41-02; 20-41-03 & EA 192575 REV P1; ACCOMPLISHED BLEND REPAIR AT STA 716 FRAME FITTING INNER FLANGE BELOW STR 15R IAW EA 192572 IR.

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