# SDR CALA2023092702884

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2023
- Submitted: September 27, 2023
- Operation: Air carrier
- Aircraft: [N16709](https://openairdocs.org/aircraft/N16709), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28779
- Aircraft time: 79,014 hours, 28,388 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- Part number: 147A851024
- Condition: Corroded
- Location: R2 Door
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023092702884

## Discrepancy

SUPPORT TASK: MAIN CABIN R-2 DOOR THRESHOLD WEB RBL-39 HAS CORROSION.  TRANSCRIBED FROM HAECO GSO NRC# 9282553 BOEING DWG# 147A8510 REV E.   REMOVED .071" CORRODED MATERIAL FROM ORIGINAL .071" THICKNESS. R EMAINING 0 MATERIAL THICKNESS FOUND TO BE OUT OF LIMITS IAW B737 -700 SRM 53-70-15-1A-1 AND BOEING DWG# 147A8510 REV E. REMOVED AND REPLACED DOOR THRESHOLD WEB IAW B737-700 SRM 51-40-02 AND REMOVED .071" CORRODED MATERIAL FROM ORIGINAL .071" THICKNESS. DWG# 147A8510 REV E.  REMAINING 0 MATERIAL THICKNESS FOUND TO BE OUT OF LIMITS IAW B737 -700 SRM 53-70-15-1A-1 AND BOEING DWG# 147A8510 REV E. REMOVED A ND REPLACED DOOR THRESHOLD WEB IAW B737-700 SRM 51-40-02 AND

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