# SDR SWAA2022031431239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2019
- Submitted: March 15, 2022
- Operation: Air carrier
- Aircraft: [N292WN](https://openairdocs.org/aircraft/N292WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32538
- Aircraft time: 41,292 hours, 24,586 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Sill
- Condition: Corroded
- Location: Fwd Entry Door (
- 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/SWAA2022031431239

## Discrepancy

PASSENGER CABIN FWD WET AREA BETWEEN STA 294.5 AND 332.1 SUPPORT L ANGLE ATTACHED TO OUTBD SIDE OF INNER DOOR CREASE BEAM CHORD IS CORRODED UNDER CENTER DOOR TRESHOLD AS MARKED TOP SURFACE / REMOVED CORROSION AND VERIFIED A MATERIAL LOSS OF .018' THE ORIGINAL THICKNESS BEING .090' AND MAX ALLOWABLE LOSS OF .004' FOUND TO BE OUT OF LIMITS IAW SRM 51-10-02-0G-0 AND SRM 53-10-155-1A-2 TASK C(2) FIG 103 DETAIL D REMOVED OUT OF LIMITS LOWER MAIL DOOR SILL AND INSTALLED NEW P/N 141A8312-5 A-TAG# WN3644 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A8310 REV. D

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